diff --git a/doc/api/webcrypto.md b/doc/api/webcrypto.md
index 2188edd8523154..37d8592fc2c552 100644
--- a/doc/api/webcrypto.md
+++ b/doc/api/webcrypto.md
@@ -2,6 +2,10 @@
 
 <!-- YAML
 changes:
+  - version: REPLACEME
+    pr-url: https://github.com/nodejs/node/pull/46067
+    description: Arguments are now coersed and validated as per their WebIDL
+      definitions like in other Web Crypto API implementations.
   - version: v16.17.0
     pr-url: https://github.com/nodejs/node/pull/43310
     description: Removed proprietary `'node.keyObject'` import/export format.
diff --git a/lib/internal/crypto/aes.js b/lib/internal/crypto/aes.js
index e716caedd050de..6271516028d157 100644
--- a/lib/internal/crypto/aes.js
+++ b/lib/internal/crypto/aes.js
@@ -32,7 +32,6 @@ const {
 } = internalBinding('crypto');
 
 const {
-  getArrayBufferOrView,
   hasAnyNotIn,
   jobPromise,
   validateByteLength,
@@ -112,13 +111,10 @@ function getVariant(name, length) {
 }
 
 function asyncAesCtrCipher(mode, key, data, { counter, length }) {
-  counter = getArrayBufferOrView(counter, 'algorithm.counter');
   validateByteLength(counter, 'algorithm.counter', 16);
   // The length must specify an integer between 1 and 128. While
   // there is no default, this should typically be 64.
-  if (typeof length !== 'number' ||
-      length <= 0 ||
-      length > kMaxCounterLength) {
+  if (length === 0 || length > kMaxCounterLength) {
     throw lazyDOMException(
       'AES-CTR algorithm.length must be between 1 and 128',
       'OperationError');
@@ -135,7 +131,6 @@ function asyncAesCtrCipher(mode, key, data, { counter, length }) {
 }
 
 function asyncAesCbcCipher(mode, key, data, { iv }) {
-  iv = getArrayBufferOrView(iv, 'algorithm.iv');
   validateByteLength(iv, 'algorithm.iv', 16);
   return jobPromise(() => new AESCipherJob(
     kCryptoJobAsync,
@@ -166,12 +161,9 @@ function asyncAesGcmCipher(
       'OperationError'));
   }
 
-  iv = getArrayBufferOrView(iv, 'algorithm.iv');
   validateMaxBufferLength(iv, 'algorithm.iv');
 
   if (additionalData !== undefined) {
-    additionalData =
-      getArrayBufferOrView(additionalData, 'algorithm.additionalData');
     validateMaxBufferLength(additionalData, 'algorithm.additionalData');
   }
 
@@ -282,16 +274,16 @@ async function aesImportKey(
       break;
     }
     case 'jwk': {
-      if (keyData == null || typeof keyData !== 'object')
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+      if (!keyData.kty)
+        throw lazyDOMException('Invalid keyData', 'DataError');
 
       if (keyData.kty !== 'oct')
-        throw lazyDOMException('Invalid key type', 'DataError');
+        throw lazyDOMException('Invalid JWK "kty" Parameter', 'DataError');
 
       if (usagesSet.size > 0 &&
           keyData.use !== undefined &&
           keyData.use !== 'enc') {
-        throw lazyDOMException('Invalid use type', 'DataError');
+        throw lazyDOMException('Invalid JWK "use" Parameter', 'DataError');
       }
 
       validateKeyOps(keyData.key_ops, usagesSet);
@@ -299,7 +291,9 @@ async function aesImportKey(
       if (keyData.ext !== undefined &&
           keyData.ext === false &&
           extractable === true) {
-        throw lazyDOMException('JWK is not extractable', 'DataError');
+        throw lazyDOMException(
+          'JWK "ext" Parameter and extractable mismatch',
+          'DataError');
       }
 
       const handle = new KeyObjectHandle();
@@ -309,10 +303,10 @@ async function aesImportKey(
       validateKeyLength(length);
 
       if (keyData.alg !== undefined) {
-        if (typeof keyData.alg !== 'string')
-          throw lazyDOMException('Invalid alg', 'DataError');
         if (keyData.alg !== getAlgorithmName(algorithm.name, length))
-          throw lazyDOMException('Algorithm mismatch', 'DataError');
+          throw lazyDOMException(
+            'JWK "alg" does not match the requested algorithm',
+            'DataError');
       }
 
       keyObject = new SecretKeyObject(handle);
diff --git a/lib/internal/crypto/cfrg.js b/lib/internal/crypto/cfrg.js
index 6d5572a3f99988..99f72efd8e39e4 100644
--- a/lib/internal/crypto/cfrg.js
+++ b/lib/internal/crypto/cfrg.js
@@ -18,7 +18,6 @@ const {
 } = internalBinding('crypto');
 
 const {
-  getArrayBufferOrView,
   getUsagesUnion,
   hasAnyNotIn,
   jobPromise,
@@ -83,7 +82,6 @@ function verifyAcceptableCfrgKeyUse(name, type, usages) {
 
 function createCFRGRawKey(name, keyData, isPublic) {
   const handle = new KeyObjectHandle();
-  keyData = getArrayBufferOrView(keyData, 'keyData');
 
   switch (name) {
     case 'Ed25519':
@@ -248,12 +246,13 @@ async function cfrgImportKey(
       break;
     }
     case 'jwk': {
-      if (keyData == null || typeof keyData !== 'object')
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+      if (!keyData.kty)
+        throw lazyDOMException('Invalid keyData', 'DataError');
       if (keyData.kty !== 'OKP')
-        throw lazyDOMException('Invalid key type', 'DataError');
+        throw lazyDOMException('Invalid JWK "kty" Parameter', 'DataError');
       if (keyData.crv !== name)
-        throw lazyDOMException('Subtype mismatch', 'DataError');
+        throw lazyDOMException(
+          'JWK "crv" Parameter and algorithm name mismatch', 'DataError');
       const isPublic = keyData.d === undefined;
 
       if (usagesSet.size > 0 && keyData.use !== undefined) {
@@ -271,7 +270,7 @@ async function cfrgImportKey(
             break;
         }
         if (keyData.use !== checkUse)
-          throw lazyDOMException('Invalid use type', 'DataError');
+          throw lazyDOMException('Invalid JWK "use" Parameter', 'DataError');
       }
 
       validateKeyOps(keyData.key_ops, usagesSet);
@@ -279,22 +278,24 @@ async function cfrgImportKey(
       if (keyData.ext !== undefined &&
           keyData.ext === false &&
           extractable === true) {
-        throw lazyDOMException('JWK is not extractable', 'DataError');
+        throw lazyDOMException(
+          'JWK "ext" Parameter and extractable mismatch',
+          'DataError');
       }
 
       if (keyData.alg !== undefined) {
-        if (typeof keyData.alg !== 'string')
-          throw lazyDOMException('Invalid alg', 'DataError');
         if (
           (name === 'Ed25519' || name === 'Ed448') &&
           keyData.alg !== 'EdDSA'
         ) {
-          throw lazyDOMException('Invalid alg', 'DataError');
+          throw lazyDOMException(
+            'JWK "alg" does not match the requested algorithm',
+            'DataError');
         }
       }
 
       if (!isPublic && typeof keyData.x !== 'string') {
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+        throw lazyDOMException('Invalid JWK', 'DataError');
       }
 
       verifyAcceptableCfrgKeyUse(
@@ -316,7 +317,7 @@ async function cfrgImportKey(
           false);
 
         if (!createPublicKey(keyObject).equals(publicKeyObject)) {
-          throw lazyDOMException('Invalid JWK keyData', 'DataError');
+          throw lazyDOMException('Invalid JWK', 'DataError');
         }
       }
       break;
@@ -347,13 +348,9 @@ function eddsaSignVerify(key, data, { name, context }, signature) {
   if (key.type !== type)
     throw lazyDOMException(`Key must be a ${type} key`, 'InvalidAccessError');
 
-  if (name === 'Ed448' && context !== undefined) {
-    context =
-      getArrayBufferOrView(context, 'algorithm.context');
-    if (context.byteLength !== 0) {
-      throw lazyDOMException(
-        'Non zero-length context is not yet supported.', 'NotSupportedError');
-    }
+  if (name === 'Ed448' && context?.byteLength) {
+    throw lazyDOMException(
+      'Non zero-length context is not yet supported.', 'NotSupportedError');
   }
 
   return jobPromise(() => new SignJob(
diff --git a/lib/internal/crypto/diffiehellman.js b/lib/internal/crypto/diffiehellman.js
index ac37e45a8b6b99..878bb74b1f48dd 100644
--- a/lib/internal/crypto/diffiehellman.js
+++ b/lib/internal/crypto/diffiehellman.js
@@ -37,7 +37,6 @@ const {
   validateInt32,
   validateObject,
   validateString,
-  validateUint32,
 } = require('internal/validators');
 
 const {
@@ -51,7 +50,6 @@ const {
 
 const {
   KeyObject,
-  isCryptoKey,
 } = require('internal/crypto/keys');
 
 const {
@@ -335,13 +333,6 @@ function deriveBitsECDH(name, publicKey, privateKey, callback) {
 async function asyncDeriveBitsECDH(algorithm, baseKey, length) {
   const { 'public': key } = algorithm;
 
-  // Null means that we're not asking for a specific number of bits, just
-  // give us everything that is generated.
-  if (length !== null)
-    validateUint32(length, 'length');
-  if (!isCryptoKey(key))
-    throw new ERR_INVALID_ARG_TYPE('algorithm.public', 'CryptoKey', key);
-
   if (key.type !== 'public') {
     throw lazyDOMException(
       'algorithm.public must be a public key', 'InvalidAccessError');
diff --git a/lib/internal/crypto/ec.js b/lib/internal/crypto/ec.js
index 83f691bcabc35c..8276933d34d224 100644
--- a/lib/internal/crypto/ec.js
+++ b/lib/internal/crypto/ec.js
@@ -18,13 +18,6 @@ const {
 } = internalBinding('crypto');
 
 const {
-  codes: {
-    ERR_MISSING_OPTION,
-  }
-} = require('internal/errors');
-
-const {
-  getArrayBufferOrView,
   getUsagesUnion,
   hasAnyNotIn,
   jobPromise,
@@ -86,7 +79,6 @@ function verifyAcceptableEcKeyUse(name, type, usages) {
 
 function createECPublicKeyRaw(namedCurve, keyData) {
   const handle = new KeyObjectHandle();
-  keyData = getArrayBufferOrView(keyData, 'keyData');
 
   if (!handle.initECRaw(kNamedCurveAliases[namedCurve], keyData)) {
     throw lazyDOMException('Invalid keyData', 'DataError');
@@ -215,12 +207,14 @@ async function ecImportKey(
       break;
     }
     case 'jwk': {
-      if (keyData == null || typeof keyData !== 'object')
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+      if (!keyData.kty)
+        throw lazyDOMException('Invalid keyData', 'DataError');
       if (keyData.kty !== 'EC')
-        throw lazyDOMException('Invalid key type', 'DataError');
+        throw lazyDOMException('Invalid JWK "kty" Parameter', 'DataError');
       if (keyData.crv !== namedCurve)
-        throw lazyDOMException('Named curve mismatch', 'DataError');
+        throw lazyDOMException(
+          'JWK "crv" does not match the requested algorithm',
+          'DataError');
 
       if (keyData.d !== undefined) {
         verifyAcceptableEcKeyUse(name, 'private', usagesSet);
@@ -229,10 +223,9 @@ async function ecImportKey(
       }
 
       if (usagesSet.size > 0 && keyData.use !== undefined) {
-        if (algorithm.name === 'ECDSA' && keyData.use !== 'sig')
-          throw lazyDOMException('Invalid use type', 'DataError');
-        if (algorithm.name === 'ECDH' && keyData.use !== 'enc')
-          throw lazyDOMException('Invalid use type', 'DataError');
+        const checkUse = name === 'ECDH' ? 'enc' : 'sig';
+        if (keyData.use !== checkUse)
+          throw lazyDOMException('Invalid JWK "use" Parameter', 'DataError');
       }
 
       validateKeyOps(keyData.key_ops, usagesSet);
@@ -240,12 +233,12 @@ async function ecImportKey(
       if (keyData.ext !== undefined &&
           keyData.ext === false &&
           extractable === true) {
-        throw lazyDOMException('JWK is not extractable', 'DataError');
+        throw lazyDOMException(
+          'JWK "ext" Parameter and extractable mismatch',
+          'DataError');
       }
 
       if (algorithm.name === 'ECDSA' && keyData.alg !== undefined) {
-        if (typeof keyData.alg !== 'string')
-          throw lazyDOMException('Invalid alg', 'DataError');
         let algNamedCurve;
         switch (keyData.alg) {
           case 'ES256': algNamedCurve = 'P-256'; break;
@@ -253,13 +246,15 @@ async function ecImportKey(
           case 'ES512': algNamedCurve = 'P-521'; break;
         }
         if (algNamedCurve !== namedCurve)
-          throw lazyDOMException('Named curve mismatch', 'DataError');
+          throw lazyDOMException(
+            'JWK "alg" does not match the requested algorithm',
+            'DataError');
       }
 
       const handle = new KeyObjectHandle();
       const type = handle.initJwk(keyData, namedCurve);
       if (type === undefined)
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+        throw lazyDOMException('Invalid JWK', 'DataError');
       keyObject = type === kKeyTypePrivate ?
         new PrivateKeyObject(handle) :
         new PublicKeyObject(handle);
@@ -301,8 +296,6 @@ function ecdsaSignVerify(key, data, { name, hash }, signature) {
   if (key.type !== type)
     throw lazyDOMException(`Key must be a ${type} key`, 'InvalidAccessError');
 
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
   const hashname = normalizeHashName(hash.name);
 
   return jobPromise(() => new SignJob(
diff --git a/lib/internal/crypto/hash.js b/lib/internal/crypto/hash.js
index 72d127b37cbeb6..66300c142e511c 100644
--- a/lib/internal/crypto/hash.js
+++ b/lib/internal/crypto/hash.js
@@ -14,11 +14,9 @@ const {
 } = internalBinding('crypto');
 
 const {
-  getArrayBufferOrView,
   getDefaultEncoding,
   getStringOption,
   jobPromise,
-  normalizeAlgorithm,
   normalizeHashName,
   validateMaxBufferLength,
   kHandle,
@@ -168,13 +166,8 @@ Hmac.prototype._transform = Hash.prototype._transform;
 // Implementation for WebCrypto subtle.digest()
 
 async function asyncDigest(algorithm, data) {
-  algorithm = normalizeAlgorithm(algorithm);
-  data = getArrayBufferOrView(data, 'data');
   validateMaxBufferLength(data, 'data');
 
-  if (algorithm.length !== undefined)
-    validateUint32(algorithm.length, 'algorithm.length');
-
   switch (algorithm.name) {
     case 'SHA-1':
       // Fall through
@@ -186,11 +179,10 @@ async function asyncDigest(algorithm, data) {
       return jobPromise(() => new HashJob(
         kCryptoJobAsync,
         normalizeHashName(algorithm.name),
-        data,
-        algorithm.length));
+        data));
   }
 
-  throw lazyDOMException('Unrecognized name.', 'NotSupportedError');
+  throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
 }
 
 module.exports = {
diff --git a/lib/internal/crypto/hkdf.js b/lib/internal/crypto/hkdf.js
index 635e07dd594192..7f08d605b1121f 100644
--- a/lib/internal/crypto/hkdf.js
+++ b/lib/internal/crypto/hkdf.js
@@ -21,7 +21,6 @@ const {
 const { kMaxLength } = require('buffer');
 
 const {
-  getArrayBufferOrView,
   normalizeHashName,
   toBuf,
   validateByteSource,
@@ -46,7 +45,6 @@ const {
   codes: {
     ERR_INVALID_ARG_TYPE,
     ERR_OUT_OF_RANGE,
-    ERR_MISSING_OPTION,
   },
   hideStackFrames,
 } = require('internal/errors');
@@ -140,11 +138,7 @@ function hkdfSync(hash, key, salt, info, length) {
 }
 
 async function hkdfDeriveBits(algorithm, baseKey, length) {
-  const { hash } = algorithm;
-  const salt = getArrayBufferOrView(algorithm.salt, 'algorithm.salt');
-  const info = getArrayBufferOrView(algorithm.info, 'algorithm.info');
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
+  const { hash, salt, info } = algorithm;
 
   let byteLength = 512 / 8;
   if (length !== undefined) {
diff --git a/lib/internal/crypto/mac.js b/lib/internal/crypto/mac.js
index 074e3ba535db72..94f57568e349f3 100644
--- a/lib/internal/crypto/mac.js
+++ b/lib/internal/crypto/mac.js
@@ -29,12 +29,6 @@ const {
   promisify,
 } = require('internal/util');
 
-const {
-  codes: {
-    ERR_MISSING_OPTION,
-  }
-} = require('internal/errors');
-
 const {
   generateKey: _generateKey,
 } = require('internal/crypto/keygen');
@@ -50,8 +44,6 @@ const generateKey = promisify(_generateKey);
 async function hmacGenerateKey(algorithm, extractable, keyUsages) {
   const { hash, name } = algorithm;
   let { length } = algorithm;
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
 
   if (length === undefined)
     length = getBlockSize(hash.name);
@@ -79,16 +71,24 @@ async function hmacGenerateKey(algorithm, extractable, keyUsages) {
     extractable);
 }
 
+function getAlgorithmName(hash) {
+  switch (hash) {
+    case 'SHA-1': // Fall through
+    case 'SHA-256': // Fall through
+    case 'SHA-384': // Fall through
+    case 'SHA-512': // Fall through
+      return `HS${hash.slice(4)}`;
+    default:
+      throw lazyDOMException('Unsupported digest algorithm', 'DataError');
+  }
+}
+
 async function hmacImportKey(
   format,
   keyData,
   algorithm,
   extractable,
   keyUsages) {
-  const { hash } = algorithm;
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
-
   const usagesSet = new SafeSet(keyUsages);
   if (hasAnyNotIn(usagesSet, ['sign', 'verify'])) {
     throw lazyDOMException(
@@ -116,16 +116,16 @@ async function hmacImportKey(
       break;
     }
     case 'jwk': {
-      if (keyData == null || typeof keyData !== 'object')
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+      if (!keyData.kty)
+        throw lazyDOMException('Invalid keyData', 'DataError');
 
       if (keyData.kty !== 'oct')
-        throw lazyDOMException('Invalid key type', 'DataError');
+        throw lazyDOMException('Invalid JWK "kty" Parameter', 'DataError');
 
       if (usagesSet.size > 0 &&
           keyData.use !== undefined &&
           keyData.use !== 'sig') {
-        throw lazyDOMException('Invalid use type', 'DataError');
+        throw lazyDOMException('Invalid JWK "use" Parameter', 'DataError');
       }
 
       validateKeyOps(keyData.key_ops, usagesSet);
@@ -133,32 +133,16 @@ async function hmacImportKey(
       if (keyData.ext !== undefined &&
           keyData.ext === false &&
           extractable === true) {
-        throw lazyDOMException('JWK is not extractable', 'DataError');
+        throw lazyDOMException(
+          'JWK "ext" Parameter and extractable mismatch',
+          'DataError');
       }
 
       if (keyData.alg !== undefined) {
-        if (typeof keyData.alg !== 'string')
-          throw lazyDOMException('Invalid alg', 'DataError');
-        switch (keyData.alg) {
-          case 'HS1':
-            if (algorithm.hash.name !== 'SHA-1')
-              throw lazyDOMException('Digest algorithm mismatch', 'DataError');
-            break;
-          case 'HS256':
-            if (algorithm.hash.name !== 'SHA-256')
-              throw lazyDOMException('Digest algorithm mismatch', 'DataError');
-            break;
-          case 'HS384':
-            if (algorithm.hash.name !== 'SHA-384')
-              throw lazyDOMException('Digest algorithm mismatch', 'DataError');
-            break;
-          case 'HS512':
-            if (algorithm.hash.name !== 'SHA-512')
-              throw lazyDOMException('Digest algorithm mismatch', 'DataError');
-            break;
-          default:
-            throw lazyDOMException('Unsupported digest algorithm', 'DataError');
-        }
+        if (keyData.alg !== getAlgorithmName(algorithm.hash.name))
+          throw lazyDOMException(
+            'JWK "alg" does not match the requested algorithm',
+            'DataError');
       }
 
       const handle = new KeyObjectHandle();
diff --git a/lib/internal/crypto/pbkdf2.js b/lib/internal/crypto/pbkdf2.js
index ce65c9b6ebb7bb..b7a144938332ba 100644
--- a/lib/internal/crypto/pbkdf2.js
+++ b/lib/internal/crypto/pbkdf2.js
@@ -2,7 +2,6 @@
 
 const {
   FunctionPrototypeCall,
-  Promise,
 } = primordials;
 
 const { Buffer } = require('buffer');
@@ -16,13 +15,9 @@ const {
 const {
   validateCallback,
   validateInt32,
-  validateInteger,
   validateString,
-  validateUint32,
 } = require('internal/validators');
 
-const { ERR_MISSING_OPTION } = require('internal/errors').codes;
-
 const {
   getArrayBufferOrView,
   getDefaultEncoding,
@@ -32,6 +27,7 @@ const {
 
 const {
   lazyDOMException,
+  promisify,
 } = require('internal/util');
 
 function pbkdf2(password, salt, iterations, keylen, digest, callback) {
@@ -100,43 +96,38 @@ function check(password, salt, iterations, keylen, digest) {
   return { password, salt, iterations, keylen, digest };
 }
 
+const pbkdf2Promise = promisify(pbkdf2);
 async function pbkdf2DeriveBits(algorithm, baseKey, length) {
-  const { iterations } = algorithm;
-  let { hash } = algorithm;
-  const salt = getArrayBufferOrView(algorithm.salt, 'algorithm.salt');
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
-  validateInteger(iterations, 'algorithm.iterations');
+  const { iterations, hash, salt } = algorithm;
   if (iterations === 0)
     throw lazyDOMException(
       'iterations cannot be zero',
       'OperationError');
 
-  hash = normalizeHashName(hash.name);
-
   const raw = baseKey[kKeyObject].export();
 
-  let byteLength = 64;  // the default
-  if (length !== undefined) {
-    if (length === 0)
-      throw lazyDOMException('length cannot be zero', 'OperationError');
-    if (length === null)
-      throw lazyDOMException('length cannot be null', 'OperationError');
-    validateUint32(length, 'length');
-    if (length % 8) {
-      throw lazyDOMException(
-        'length must be a multiple of 8',
-        'OperationError');
-    }
-    byteLength = length / 8;
+  if (length === 0)
+    throw lazyDOMException('length cannot be zero', 'OperationError');
+  if (length === null)
+    throw lazyDOMException('length cannot be null', 'OperationError');
+  if (length % 8) {
+    throw lazyDOMException(
+      'length must be a multiple of 8',
+      'OperationError');
+  }
+
+  let result;
+  try {
+    result = await pbkdf2Promise(
+      raw, salt, iterations, length / 8, normalizeHashName(hash.name),
+    );
+  } catch (err) {
+    throw lazyDOMException(
+      'The operation failed for an operation-specific reason',
+      { name: 'OperationError', cause: err });
   }
 
-  return new Promise((resolve, reject) => {
-    pbkdf2(raw, salt, iterations, byteLength, hash, (err, result) => {
-      if (err) return reject(err);
-      resolve(result.buffer);
-    });
-  });
+  return result.buffer;
 }
 
 module.exports = {
diff --git a/lib/internal/crypto/rsa.js b/lib/internal/crypto/rsa.js
index dad158a264e7cd..b61029b8dbf9b5 100644
--- a/lib/internal/crypto/rsa.js
+++ b/lib/internal/crypto/rsa.js
@@ -21,21 +21,12 @@ const {
   RSA_PKCS1_PSS_PADDING,
 } = internalBinding('crypto');
 
-const {
-  codes: {
-    ERR_INVALID_ARG_TYPE,
-    ERR_MISSING_OPTION,
-  }
-} = require('internal/errors');
-
 const {
   validateInt32,
-  validateUint32,
 } = require('internal/validators');
 
 const {
   bigIntArrayToUnsignedInt,
-  getArrayBufferOrView,
   getUsagesUnion,
   hasAnyNotIn,
   jobPromise,
@@ -51,10 +42,6 @@ const {
   promisify,
 } = require('internal/util');
 
-const {
-  isUint8Array,
-} = require('internal/util/types');
-
 const {
   InternalCryptoKey,
   PrivateKeyObject,
@@ -112,7 +99,6 @@ function rsaOaepCipher(mode, key, data, { label }) {
       'InvalidAccessError');
   }
   if (label !== undefined) {
-    label = getArrayBufferOrView(label, 'algorithm.label');
     validateMaxBufferLength(label, 'algorithm.label');
   }
 
@@ -138,16 +124,6 @@ async function rsaKeyGenerate(
     hash
   } = algorithm;
 
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
-  validateUint32(modulusLength, 'algorithm.modulusLength');
-  if (!isUint8Array(publicExponent)) {
-    throw new ERR_INVALID_ARG_TYPE(
-      'algorithm.publicExponent',
-      'Uint8Array',
-      publicExponent);
-  }
-
   const usageSet = new SafeSet(keyUsages);
 
   const publicExponentConverted = bigIntArrayToUnsignedInt(publicExponent);
@@ -237,10 +213,6 @@ async function rsaImportKey(
   algorithm,
   extractable,
   keyUsages) {
-  const { hash } = algorithm;
-  if (hash === undefined)
-    throw new ERR_MISSING_OPTION('algorithm.hash');
-
   const usagesSet = new SafeSet(keyUsages);
   let keyObject;
   switch (format) {
@@ -273,21 +245,21 @@ async function rsaImportKey(
       break;
     }
     case 'jwk': {
-      if (keyData == null || typeof keyData !== 'object')
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+      if (!keyData.kty)
+        throw lazyDOMException('Invalid keyData', 'DataError');
+
+      if (keyData.kty !== 'RSA')
+        throw lazyDOMException('Invalid JWK "kty" Parameter', 'DataError');
 
       verifyAcceptableRsaKeyUse(
         algorithm.name,
         keyData.d !== undefined ? 'private' : 'public',
         usagesSet);
 
-      if (keyData.kty !== 'RSA')
-        throw lazyDOMException('Invalid key type', 'DataError');
-
       if (usagesSet.size > 0 && keyData.use !== undefined) {
         const checkUse = algorithm.name === 'RSA-OAEP' ? 'enc' : 'sig';
         if (keyData.use !== checkUse)
-          throw lazyDOMException('Invalid use type', 'DataError');
+          throw lazyDOMException('Invalid JWK "use" Parameter', 'DataError');
       }
 
       validateKeyOps(keyData.key_ops, usagesSet);
@@ -295,22 +267,24 @@ async function rsaImportKey(
       if (keyData.ext !== undefined &&
           keyData.ext === false &&
           extractable === true) {
-        throw lazyDOMException('JWK is not extractable', 'DataError');
+        throw lazyDOMException(
+          'JWK "ext" Parameter and extractable mismatch',
+          'DataError');
       }
 
       if (keyData.alg !== undefined) {
-        if (typeof keyData.alg !== 'string')
-          throw lazyDOMException('Invalid alg', 'DataError');
         const hash =
           normalizeHashName(keyData.alg, normalizeHashName.kContextWebCrypto);
         if (hash !== algorithm.hash.name)
-          throw lazyDOMException('Hash mismatch', 'DataError');
+          throw lazyDOMException(
+            'JWK "alg" does not match the requested algorithm',
+            'DataError');
       }
 
       const handle = new KeyObjectHandle();
       const type = handle.initJwk(keyData);
       if (type === undefined)
-        throw lazyDOMException('Invalid JWK keyData', 'DataError');
+        throw lazyDOMException('Invalid JWK', 'DataError');
 
       keyObject = type === kKeyTypePrivate ?
         new PrivateKeyObject(handle) :
diff --git a/lib/internal/crypto/util.js b/lib/internal/crypto/util.js
index 831fdd597eeede..907431c8f3a539 100644
--- a/lib/internal/crypto/util.js
+++ b/lib/internal/crypto/util.js
@@ -1,15 +1,26 @@
 'use strict';
 
 const {
+  ArrayBufferIsView,
+  ArrayBufferPrototypeGetByteLength,
   ArrayPrototypeIncludes,
   ArrayPrototypePush,
   BigInt,
+  DataViewPrototypeGetBuffer,
+  DataViewPrototypeGetByteLength,
+  DataViewPrototypeGetByteOffset,
   FunctionPrototypeBind,
   Number,
   ObjectKeys,
+  ObjectPrototypeHasOwnProperty,
   Promise,
-  StringPrototypeToLowerCase,
+  StringPrototypeToUpperCase,
   Symbol,
+  TypedArrayPrototypeGetBuffer,
+  TypedArrayPrototypeGetByteLength,
+  TypedArrayPrototypeGetByteOffset,
+  TypedArrayPrototypeSlice,
+  Uint8Array,
 } = primordials;
 
 const {
@@ -55,6 +66,7 @@ const {
 } = require('internal/util');
 
 const {
+  isDataView,
   isArrayBufferView,
   isAnyArrayBuffer,
 } = require('internal/util/types');
@@ -147,40 +159,6 @@ const kNamedCurveAliases = {
 
 const kAesKeyLengths = [128, 192, 256];
 
-// These are the only algorithms we currently support
-// via the Web Crypto API
-const kAlgorithms = {
-  'rsassa-pkcs1-v1_5': 'RSASSA-PKCS1-v1_5',
-  'rsa-pss': 'RSA-PSS',
-  'rsa-oaep': 'RSA-OAEP',
-  'ecdsa': 'ECDSA',
-  'ecdh': 'ECDH',
-  'aes-ctr': 'AES-CTR',
-  'aes-cbc': 'AES-CBC',
-  'aes-gcm': 'AES-GCM',
-  'aes-kw': 'AES-KW',
-  'hmac': 'HMAC',
-  'sha-1': 'SHA-1',
-  'sha-256': 'SHA-256',
-  'sha-384': 'SHA-384',
-  'sha-512': 'SHA-512',
-  'hkdf': 'HKDF',
-  'pbkdf2': 'PBKDF2',
-  'ed25519': 'Ed25519',
-  'ed448': 'Ed448',
-  'x25519': 'X25519',
-  'x448': 'X448',
-};
-const kAlgorithmsKeys = ObjectKeys(kAlgorithms);
-
-// These are the only export and import formats we currently
-// support via the Web Crypto API
-const kExportFormats = [
-  'raw',
-  'pkcs8',
-  'spki',
-  'jwk'];
-
 // These are the only hash algorithms we currently support via
 // the Web Crypto API.
 const kHashTypes = [
@@ -190,6 +168,119 @@ const kHashTypes = [
   'SHA-512',
 ];
 
+const kSupportedAlgorithms = {
+  'digest': {
+    'SHA-1': null,
+    'SHA-256': null,
+    'SHA-384': null,
+    'SHA-512': null,
+  },
+  'generateKey': {
+    'RSASSA-PKCS1-v1_5': 'RsaHashedKeyGenParams',
+    'RSA-PSS': 'RsaHashedKeyGenParams',
+    'RSA-OAEP': 'RsaHashedKeyGenParams',
+    'ECDSA': 'EcKeyGenParams',
+    'ECDH': 'EcKeyGenParams',
+    'AES-CTR': 'AesKeyGenParams',
+    'AES-CBC': 'AesKeyGenParams',
+    'AES-GCM': 'AesKeyGenParams',
+    'AES-KW': 'AesKeyGenParams',
+    'HMAC': 'HmacKeyGenParams',
+    'X25519': null,
+    'Ed25519': null,
+    'X448': null,
+    'Ed448': null,
+  },
+  'sign': {
+    'RSASSA-PKCS1-v1_5': null,
+    'RSA-PSS': 'RsaPssParams',
+    'ECDSA': 'EcdsaParams',
+    'HMAC': null,
+    'Ed25519': null,
+    'Ed448': 'Ed448Params',
+  },
+  'verify': {
+    'RSASSA-PKCS1-v1_5': null,
+    'RSA-PSS': 'RsaPssParams',
+    'ECDSA': 'EcdsaParams',
+    'HMAC': null,
+    'Ed25519': null,
+    'Ed448': 'Ed448Params',
+  },
+  'importKey': {
+    'RSASSA-PKCS1-v1_5': 'RsaHashedImportParams',
+    'RSA-PSS': 'RsaHashedImportParams',
+    'RSA-OAEP': 'RsaHashedImportParams',
+    'ECDSA': 'EcKeyImportParams',
+    'ECDH': 'EcKeyImportParams',
+    'HMAC': 'HmacImportParams',
+    'HKDF': null,
+    'PBKDF2': null,
+    'AES-CTR': null,
+    'AES-CBC': null,
+    'AES-GCM': null,
+    'AES-KW': null,
+    'Ed25519': null,
+    'X25519': null,
+    'Ed448': null,
+    'X448': null,
+  },
+  'deriveBits': {
+    'HKDF': 'HkdfParams',
+    'PBKDF2': 'Pbkdf2Params',
+    'ECDH': 'EcdhKeyDeriveParams',
+    'X25519': 'EcdhKeyDeriveParams',
+    'X448': 'EcdhKeyDeriveParams',
+  },
+  'encrypt': {
+    'RSA-OAEP': 'RsaOaepParams',
+    'AES-CBC': 'AesCbcParams',
+    'AES-GCM': 'AesGcmParams',
+    'AES-CTR': 'AesCtrParams',
+  },
+  'decrypt': {
+    'RSA-OAEP': 'RsaOaepParams',
+    'AES-CBC': 'AesCbcParams',
+    'AES-GCM': 'AesGcmParams',
+    'AES-CTR': 'AesCtrParams',
+  },
+  'get key length': {
+    'AES-CBC': 'AesDerivedKeyParams',
+    'AES-CTR': 'AesDerivedKeyParams',
+    'AES-GCM': 'AesDerivedKeyParams',
+    'AES-KW': 'AesDerivedKeyParams',
+    'HMAC': 'HmacImportParams',
+    'HKDF': null,
+    'PBKDF2': null,
+  },
+  'wrapKey': {
+    'AES-KW': null,
+  },
+  'unwrapKey': {
+    'AES-KW': null,
+  },
+};
+
+const simpleAlgorithmDictionaries = {
+  AesGcmParams: { iv: 'BufferSource', additionalData: 'BufferSource' },
+  RsaHashedKeyGenParams: { hash: 'HashAlgorithmIdentifier' },
+  EcKeyGenParams: {},
+  HmacKeyGenParams: { hash: 'HashAlgorithmIdentifier' },
+  RsaPssParams: {},
+  EcdsaParams: { hash: 'HashAlgorithmIdentifier' },
+  HmacImportParams: { hash: 'HashAlgorithmIdentifier' },
+  HkdfParams: {
+    hash: 'HashAlgorithmIdentifier',
+    salt: 'BufferSource',
+    info: 'BufferSource',
+  },
+  Ed448Params: { context: 'BufferSource' },
+  Pbkdf2Params: { hash: 'HashAlgorithmIdentifier', salt: 'BufferSource' },
+  RsaOaepParams: { label: 'BufferSource' },
+  RsaHashedImportParams: { hash: 'HashAlgorithmIdentifier' },
+  EcKeyImportParams: {},
+};
+
 function validateMaxBufferLength(data, name) {
   if (data.byteLength > kMaxBufferLength) {
     throw lazyDOMException(
@@ -198,36 +289,99 @@ function validateMaxBufferLength(data, name) {
   }
 }
 
-function normalizeAlgorithm(algorithm) {
-  if (algorithm != null) {
-    if (typeof algorithm === 'string')
-      algorithm = { name: algorithm };
-
-    if (typeof algorithm === 'object') {
-      const { name } = algorithm;
-      if (typeof name !== 'string' ||
-          !ArrayPrototypeIncludes(
-            kAlgorithmsKeys,
-            StringPrototypeToLowerCase(name))) {
-        throw lazyDOMException('Unrecognized name.', 'NotSupportedError');
-      }
-      let { hash } = algorithm;
-      if (hash !== undefined) {
-        hash = normalizeAlgorithm(hash);
-        if (!ArrayPrototypeIncludes(kHashTypes, hash.name))
-          throw lazyDOMException('Unrecognized name.', 'NotSupportedError');
-      }
-      const normalized = {
-        ...algorithm,
-        name: kAlgorithms[StringPrototypeToLowerCase(name)],
-      };
-      if (hash) {
-        normalized.hash = hash;
-      }
-      return normalized;
+let webidl;
+
+// https://w3c.github.io/webcrypto/#algorithm-normalization-normalize-an-algorithm
+// adapted for Node.js from Deno's implementation
+// https://github.com/denoland/deno/blob/v1.29.1/ext/crypto/00_crypto.js#L195
+function normalizeAlgorithm(algorithm, op) {
+  if (typeof algorithm === 'string')
+    return normalizeAlgorithm({ name: algorithm }, op);
+
+  webidl ??= require('internal/crypto/webidl');
+
+  // 1.
+  const registeredAlgorithms = kSupportedAlgorithms[op];
+  // 2. 3.
+  const initialAlg = webidl.converters.Algorithm(algorithm, {
+    prefix: 'Failed to normalize algorithm',
+    context: 'passed algorithm',
+  });
+  // 4.
+  let algName = initialAlg.name;
+
+  // 5.
+  let desiredType;
+  for (const key in registeredAlgorithms) {
+    if (!ObjectPrototypeHasOwnProperty(registeredAlgorithms, key)) {
+      continue;
+    }
+    if (
+      StringPrototypeToUpperCase(key) === StringPrototypeToUpperCase(algName)
+    ) {
+      algName = key;
+      desiredType = registeredAlgorithms[key];
+    }
+  }
+  if (desiredType === undefined)
+    throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
+
+  // Fast path everything below if the registered dictionary is null
+  if (desiredType === null)
+    return { name: algName };
+
+  // 6.
+  const normalizedAlgorithm = webidl.converters[desiredType](algorithm, {
+    prefix: 'Failed to normalize algorithm',
+    context: 'passed algorithm',
+  });
+  // 7.
+  normalizedAlgorithm.name = algName;
+
+  // 9.
+  const dict = simpleAlgorithmDictionaries[desiredType];
+  // 10.
+  const dictKeys = dict ? ObjectKeys(dict) : [];
+  for (let i = 0; i < dictKeys.length; i++) {
+    const member = dictKeys[i];
+    if (!ObjectPrototypeHasOwnProperty(dict, member))
+      continue;
+    const idlType = dict[member];
+    const idlValue = normalizedAlgorithm[member];
+    // 3.
+    if (idlType === 'BufferSource' && idlValue) {
+      const isView = ArrayBufferIsView(idlValue);
+      normalizedAlgorithm[member] = TypedArrayPrototypeSlice(
+        new Uint8Array(
+          isView ? getDataViewOrTypedArrayBuffer(idlValue) : idlValue,
+          isView ? getDataViewOrTypedArrayByteOffset(idlValue) : 0,
+          isView ? getDataViewOrTypedArrayByteLength(idlValue) : ArrayBufferPrototypeGetByteLength(idlValue),
+        ),
+      );
+    } else if (idlType === 'HashAlgorithmIdentifier') {
+      normalizedAlgorithm[member] = normalizeAlgorithm(idlValue, 'digest');
+    } else if (idlType === 'AlgorithmIdentifier') {
+      // This extension point is not used by any supported algorithm (yet?)
+      throw lazyDOMException('Not implemented.', 'NotSupportedError');
     }
   }
-  throw lazyDOMException('Unrecognized name.', 'NotSupportedError');
+
+  return normalizedAlgorithm;
+}
+
+function getDataViewOrTypedArrayBuffer(V) {
+  return isDataView(V) ?
+    DataViewPrototypeGetBuffer(V) : TypedArrayPrototypeGetBuffer(V);
+}
+
+function getDataViewOrTypedArrayByteOffset(V) {
+  return isDataView(V) ?
+    DataViewPrototypeGetByteOffset(V) : TypedArrayPrototypeGetByteOffset(V);
+}
+
+function getDataViewOrTypedArrayByteLength(V) {
+  return isDataView(V) ?
+    DataViewPrototypeGetByteLength(V) : TypedArrayPrototypeGetByteLength(V);
 }
 
 function hasAnyNotIn(set, checks) {
@@ -412,6 +566,7 @@ module.exports = {
   getArrayBufferOrView,
   getCiphers,
   getCurves,
+  getDataViewOrTypedArrayBuffer,
   getDefaultEncoding,
   getHashes,
   kHandle,
@@ -423,7 +578,6 @@ module.exports = {
   kHashTypes,
   kNamedCurveAliases,
   kAesKeyLengths,
-  kExportFormats,
   normalizeAlgorithm,
   normalizeHashName,
   hasAnyNotIn,
diff --git a/lib/internal/crypto/webcrypto.js b/lib/internal/crypto/webcrypto.js
index bfc36bbb20a98b..26fbd856486261 100644
--- a/lib/internal/crypto/webcrypto.js
+++ b/lib/internal/crypto/webcrypto.js
@@ -9,7 +9,6 @@ const {
   ReflectConstruct,
   SafeSet,
   SymbolToStringTag,
-  StringPrototypeRepeat,
 } = primordials;
 
 const {
@@ -20,20 +19,11 @@ const {
   kWebCryptoCipherDecrypt,
 } = internalBinding('crypto');
 
-const {
-  validateArray,
-  validateBoolean,
-  validateObject,
-  validateOneOf,
-  validateString,
-} = require('internal/validators');
-
 const { TextDecoder, TextEncoder } = require('internal/encoding');
 
 const {
   codes: {
     ERR_ILLEGAL_CONSTRUCTOR,
-    ERR_INVALID_ARG_TYPE,
     ERR_INVALID_THIS,
   }
 } = require('internal/errors');
@@ -42,7 +32,6 @@ const {
   CryptoKey,
   InternalCryptoKey,
   createSecretKey,
-  isCryptoKey,
 } = require('internal/crypto/keys');
 
 const {
@@ -50,14 +39,12 @@ const {
 } = require('internal/crypto/hash');
 
 const {
-  getArrayBufferOrView,
   getBlockSize,
   hasAnyNotIn,
   lazyRequire,
   normalizeAlgorithm,
   normalizeHashName,
   validateMaxBufferLength,
-  kExportFormats,
   kHandle,
   kKeyObject,
 } = require('internal/crypto/util');
@@ -72,9 +59,26 @@ const {
   randomUUID: _randomUUID,
 } = require('internal/crypto/random');
 
+let webidl;
+
 async function digest(algorithm, data) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  return ReflectApply(asyncDigest, this, arguments);
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'digest' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 2, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  data = webidl.converters.BufferSource(data, {
+    prefix,
+    context: '2nd argument',
+  });
+
+  algorithm = normalizeAlgorithm(algorithm, 'digest');
+
+  return ReflectApply(asyncDigest, this, [algorithm, data]);
 }
 
 function randomUUID() {
@@ -87,9 +91,24 @@ async function generateKey(
   extractable,
   keyUsages) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  algorithm = normalizeAlgorithm(algorithm);
-  validateBoolean(extractable, 'extractable');
-  validateArray(keyUsages, 'keyUsages');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'generateKey' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 3, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  extractable = webidl.converters.boolean(extractable, {
+    prefix,
+    context: '2nd argument',
+  });
+  keyUsages = webidl.converters['sequence<KeyUsage>'](keyUsages, {
+    prefix,
+    context: '3rd argument',
+  });
+
+  algorithm = normalizeAlgorithm(algorithm, 'generateKey');
   let result;
   let resultType;
   switch (algorithm.name) {
@@ -137,7 +156,7 @@ async function generateKey(
         .aesGenerateKey(algorithm, extractable, keyUsages);
       break;
     default:
-      throw lazyDOMException('Unrecognized name.');
+      throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
   }
 
   if (
@@ -156,9 +175,26 @@ async function generateKey(
 
 async function deriveBits(algorithm, baseKey, length) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  algorithm = normalizeAlgorithm(algorithm);
-  if (!isCryptoKey(baseKey))
-    throw new ERR_INVALID_ARG_TYPE('baseKey', 'CryptoKey', baseKey);
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'deriveBits' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 3, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  baseKey = webidl.converters.CryptoKey(baseKey, {
+    prefix,
+    context: '2nd argument',
+  });
+  if (length !== null) {
+    length = webidl.converters['unsigned long'](length, {
+      prefix,
+      context: '3rd argument',
+    });
+  }
+
+  algorithm = normalizeAlgorithm(algorithm, 'deriveBits');
   if (!ArrayPrototypeIncludes(baseKey.usages, 'deriveBits')) {
     throw lazyDOMException(
       'baseKey does not have deriveBits usage',
@@ -181,7 +217,7 @@ async function deriveBits(algorithm, baseKey, length) {
       return lazyRequire('internal/crypto/pbkdf2')
         .pbkdf2DeriveBits(algorithm, baseKey, length);
   }
-  throw lazyDOMException('Unrecognized name.');
+  throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
 }
 
 function getKeyLength({ name, length, hash }) {
@@ -217,10 +253,33 @@ async function deriveKey(
   extractable,
   keyUsages) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  algorithm = normalizeAlgorithm(algorithm);
-  derivedKeyAlgorithm = normalizeAlgorithm(derivedKeyAlgorithm);
-  if (!isCryptoKey(baseKey))
-    throw new ERR_INVALID_ARG_TYPE('baseKey', 'CryptoKey', baseKey);
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'deriveKey' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 5, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  baseKey = webidl.converters.CryptoKey(baseKey, {
+    prefix,
+    context: '2nd argument',
+  });
+  derivedKeyAlgorithm = webidl.converters.AlgorithmIdentifier(derivedKeyAlgorithm, {
+    prefix,
+    context: '3rd argument',
+  });
+  extractable = webidl.converters.boolean(extractable, {
+    prefix,
+    context: '4th argument',
+  });
+  keyUsages = webidl.converters['sequence<KeyUsage>'](keyUsages, {
+    prefix,
+    context: '5th argument',
+  });
+
+  algorithm = normalizeAlgorithm(algorithm, 'deriveBits');
+  derivedKeyAlgorithm = normalizeAlgorithm(derivedKeyAlgorithm, 'importKey');
   if (!ArrayPrototypeIncludes(baseKey.usages, 'deriveKey')) {
     throw lazyDOMException(
       'baseKey does not have deriveKey usage',
@@ -228,13 +287,8 @@ async function deriveKey(
   }
   if (baseKey.algorithm.name !== algorithm.name)
     throw lazyDOMException('Key algorithm mismatch', 'InvalidAccessError');
-  validateObject(derivedKeyAlgorithm, 'derivedKeyAlgorithm', {
-    allowArray: true, allowFunction: true,
-  });
-  validateBoolean(extractable, 'extractable');
-  validateArray(keyUsages, 'keyUsages');
 
-  const length = getKeyLength(derivedKeyAlgorithm);
+  const length = getKeyLength(normalizeAlgorithm(arguments[2], 'get key length'));
   let bits;
   switch (algorithm.name) {
     case 'X25519':
@@ -254,7 +308,7 @@ async function deriveKey(
         .pbkdf2DeriveBits(algorithm, baseKey, length);
       break;
     default:
-      throw lazyDOMException('Unrecognized name.');
+      throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
   }
 
   return ReflectApply(
@@ -442,10 +496,18 @@ async function exportKeyJWK(key) {
 
 async function exportKey(format, key) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  validateString(format, 'format');
-  validateOneOf(format, 'format', kExportFormats);
-  if (!isCryptoKey(key))
-    throw new ERR_INVALID_ARG_TYPE('key', 'CryptoKey', key);
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'exportKey' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 2, { prefix });
+  format = webidl.converters.KeyFormat(format, {
+    prefix,
+    context: '1st argument',
+  });
+  key = webidl.converters.CryptoKey(key, {
+    prefix,
+    context: '2nd argument',
+  });
 
   if (!key.extractable)
     throw lazyDOMException('key is not extractable', 'InvalidAccessException');
@@ -511,13 +573,33 @@ async function importKey(
   extractable,
   keyUsages) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  validateString(format, 'format');
-  validateOneOf(format, 'format', kExportFormats);
-  if (format !== 'jwk')
-    keyData = getArrayBufferOrView(keyData, 'keyData');
-  algorithm = normalizeAlgorithm(algorithm);
-  validateBoolean(extractable, 'extractable');
-  validateArray(keyUsages, 'keyUsages');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'importKey' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 4, { prefix });
+  format = webidl.converters.KeyFormat(format, {
+    prefix,
+    context: '1st argument',
+  });
+  const type = format === 'jwk' ? 'JsonWebKey' : 'BufferSource';
+  keyData = webidl.converters[type](keyData, {
+    prefix,
+    context: '2nd argument',
+  });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '3rd argument',
+  });
+  extractable = webidl.converters.boolean(extractable, {
+    prefix,
+    context: '4th argument',
+  });
+  keyUsages = webidl.converters['sequence<KeyUsage>'](keyUsages, {
+    prefix,
+    context: '5th argument',
+  });
+
+  algorithm = normalizeAlgorithm(algorithm, 'importKey');
   switch (algorithm.name) {
     case 'RSASSA-PKCS1-v1_5':
       // Fall through
@@ -563,22 +645,43 @@ async function importKey(
         keyUsages);
   }
 
-  throw lazyDOMException('Unrecognized name.', 'NotSupportedError');
+  throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
 }
 
 // subtle.wrapKey() is essentially a subtle.exportKey() followed
 // by a subtle.encrypt().
 async function wrapKey(format, key, wrappingKey, algorithm) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  algorithm = normalizeAlgorithm(algorithm);
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'wrapKey' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 4, { prefix });
+  format = webidl.converters.KeyFormat(format, {
+    prefix,
+    context: '1st argument',
+  });
+  key = webidl.converters.CryptoKey(key, {
+    prefix,
+    context: '2nd argument',
+  });
+  wrappingKey = webidl.converters.CryptoKey(wrappingKey, {
+    prefix,
+    context: '3rd argument',
+  });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '4th argument',
+  });
+
+  try {
+    algorithm = normalizeAlgorithm(algorithm, 'wrapKey');
+  } catch {
+    algorithm = normalizeAlgorithm(algorithm, 'encrypt');
+  }
   let keyData = await ReflectApply(exportKey, this, [format, key]);
 
   if (format === 'jwk') {
-    if (keyData == null || typeof keyData !== 'object')
-      throw lazyDOMException('Invalid exported JWK key', 'DataError');
-    const ec = new TextEncoder();
-    const raw = JSONStringify(keyData);
-    keyData = ec.encode(raw + StringPrototypeRepeat(' ', 8 - (raw.length % 8)));
+    keyData = new TextEncoder().encode(JSONStringify(keyData));
   }
 
   return cipherOrWrap(
@@ -600,8 +703,48 @@ async function unwrapKey(
   extractable,
   keyUsages) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
-  wrappedKey = getArrayBufferOrView(wrappedKey, 'wrappedKey');
-  unwrapAlgo = normalizeAlgorithm(unwrapAlgo);
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'unwrapKey' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 7, { prefix });
+  format = webidl.converters.KeyFormat(format, {
+    prefix,
+    context: '1st argument',
+  });
+  wrappedKey = webidl.converters.BufferSource(wrappedKey, {
+    prefix,
+    context: '2nd argument',
+  });
+  unwrappingKey = webidl.converters.CryptoKey(unwrappingKey, {
+    prefix,
+    context: '3rd argument',
+  });
+  unwrapAlgo = webidl.converters.AlgorithmIdentifier(unwrapAlgo, {
+    prefix,
+    context: '4th argument',
+  });
+  unwrappedKeyAlgo = webidl.converters.AlgorithmIdentifier(
+    unwrappedKeyAlgo,
+    {
+      prefix,
+      context: '5th argument',
+    },
+  );
+  extractable = webidl.converters.boolean(extractable, {
+    prefix,
+    context: '6th argument',
+  });
+  keyUsages = webidl.converters['sequence<KeyUsage>'](keyUsages, {
+    prefix,
+    context: '7th argument',
+  });
+
+  try {
+    unwrapAlgo = normalizeAlgorithm(unwrapAlgo, 'unwrapKey');
+  } catch {
+    unwrapAlgo = normalizeAlgorithm(unwrapAlgo, 'decrypt');
+  }
+
   let keyData = await cipherOrWrap(
     kWebCryptoCipherDecrypt,
     unwrapAlgo,
@@ -617,7 +760,7 @@ async function unwrapKey(
     try {
       keyData = JSONParse(dec.decode(keyData));
     } catch {
-      throw lazyDOMException('Invalid imported JWK key', 'DataError');
+      throw lazyDOMException('Invalid wrapped JWK key', 'DataError');
     }
   }
 
@@ -629,15 +772,11 @@ async function unwrapKey(
 }
 
 function signVerify(algorithm, key, data, signature) {
-  algorithm = normalizeAlgorithm(algorithm);
-  if (!isCryptoKey(key))
-    throw new ERR_INVALID_ARG_TYPE('key', 'CryptoKey', key);
-  data = getArrayBufferOrView(data, 'data');
   let usage = 'sign';
   if (signature !== undefined) {
-    signature = getArrayBufferOrView(signature, 'signature');
     usage = 'verify';
   }
+  algorithm = normalizeAlgorithm(algorithm, usage);
 
   if (!ArrayPrototypeIncludes(key.usages, usage) ||
       algorithm.name !== key.algorithm.name) {
@@ -665,26 +804,61 @@ function signVerify(algorithm, key, data, signature) {
       return lazyRequire('internal/crypto/mac')
         .hmacSignVerify(key, data, algorithm, signature);
   }
-  throw lazyDOMException('Unrecognized named.', 'NotSupportedError');
+  throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
 }
 
 async function sign(algorithm, key, data) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'sign' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 3, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  key = webidl.converters.CryptoKey(key, {
+    prefix,
+    context: '2nd argument',
+  });
+  data = webidl.converters.BufferSource(data, {
+    prefix,
+    context: '3rd argument',
+  });
+
   return signVerify(algorithm, key, data);
 }
 
 async function verify(algorithm, key, signature, data) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'verify' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 4, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  key = webidl.converters.CryptoKey(key, {
+    prefix,
+    context: '2nd argument',
+  });
+  signature = webidl.converters.BufferSource(signature, {
+    prefix,
+    context: '3rd argument',
+  });
+  data = webidl.converters.BufferSource(data, {
+    prefix,
+    context: '4th argument',
+  });
+
   return signVerify(algorithm, key, data, signature);
 }
 
 async function cipherOrWrap(mode, algorithm, key, data, op) {
-  algorithm = normalizeAlgorithm(algorithm);
   // We use a Node.js style error here instead of a DOMException because
   // the WebCrypto spec is not specific what kind of error is to be thrown
   // in this case. Both Firefox and Chrome throw simple TypeErrors here.
-  if (!isCryptoKey(key))
-    throw new ERR_INVALID_ARG_TYPE('key', 'CryptoKey', key);
   // The key algorithm and cipher algorithm must match, and the
   // key must have the proper usage.
   if (key.algorithm.name !== algorithm.name ||
@@ -694,10 +868,6 @@ async function cipherOrWrap(mode, algorithm, key, data, op) {
       'InvalidAccessError');
   }
 
-  // For the Web Crypto API, the input data can be any ArrayBuffer,
-  // TypedArray, or DataView.
-  data = getArrayBufferOrView(data, 'data');
-
   // While WebCrypto allows for larger input buffer sizes, we limit
   // those to sizes that can fit within uint32_t because of limitations
   // in the OpenSSL API.
@@ -720,16 +890,52 @@ async function cipherOrWrap(mode, algorithm, key, data, op) {
           .aesCipher(mode, key, data, algorithm);
       }
   }
-  throw lazyDOMException('Unrecognized name.', 'NotSupportedError');
+  throw lazyDOMException('Unrecognized algorithm name', 'NotSupportedError');
 }
 
 async function encrypt(algorithm, key, data) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'encrypt' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 3, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  key = webidl.converters.CryptoKey(key, {
+    prefix,
+    context: '2nd argument',
+  });
+  data = webidl.converters.BufferSource(data, {
+    prefix,
+    context: '3rd argument',
+  });
+
+  algorithm = normalizeAlgorithm(algorithm, 'encrypt');
   return cipherOrWrap(kWebCryptoCipherEncrypt, algorithm, key, data, 'encrypt');
 }
 
 async function decrypt(algorithm, key, data) {
   if (this !== subtle) throw new ERR_INVALID_THIS('SubtleCrypto');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'decrypt' on 'SubtleCrypto'";
+  webidl.requiredArguments(arguments.length, 3, { prefix });
+  algorithm = webidl.converters.AlgorithmIdentifier(algorithm, {
+    prefix,
+    context: '1st argument',
+  });
+  key = webidl.converters.CryptoKey(key, {
+    prefix,
+    context: '2nd argument',
+  });
+  data = webidl.converters.BufferSource(data, {
+    prefix,
+    context: '3rd argument',
+  });
+
+  algorithm = normalizeAlgorithm(algorithm, 'decrypt');
   return cipherOrWrap(kWebCryptoCipherDecrypt, algorithm, key, data, 'decrypt');
 }
 
@@ -757,6 +963,11 @@ const crypto = ReflectConstruct(function() {}, [], Crypto);
 
 function getRandomValues(array) {
   if (this !== crypto) throw new ERR_INVALID_THIS('Crypto');
+
+  webidl ??= require('internal/crypto/webidl');
+  const prefix = "Failed to execute 'getRandomValues' on 'Crypto'";
+  webidl.requiredArguments(arguments.length, 1, { prefix });
+
   return ReflectApply(_getRandomValues, this, arguments);
 }
 
diff --git a/lib/internal/crypto/webidl.js b/lib/internal/crypto/webidl.js
new file mode 100644
index 00000000000000..9f5340c223902c
--- /dev/null
+++ b/lib/internal/crypto/webidl.js
@@ -0,0 +1,707 @@
+'use strict';
+
+// Adapted from the following sources
+// - https://github.com/jsdom/webidl-conversions
+//   Copyright Domenic Denicola. Licensed under BSD-2-Clause License.
+//   Original license at https://github.com/jsdom/webidl-conversions/blob/master/LICENSE.md.
+// - https://github.com/denoland/deno
+//   Copyright Deno authors. Licensed under MIT License.
+//   Original license at https://github.com/denoland/deno/blob/main/LICENSE.md.
+// Changes include using primordials and stripping the code down to only what
+// WebCryptoAPI needs.
+
+const {
+  ArrayBufferIsView,
+  ArrayBufferPrototype,
+  ArrayPrototypePush,
+  ArrayPrototypeSort,
+  MathPow,
+  MathTrunc,
+  Number,
+  NumberIsFinite,
+  ObjectAssign,
+  ObjectPrototypeIsPrototypeOf,
+  SafeArrayIterator,
+  SafeSet,
+  String,
+  SymbolIterator,
+  TypedArrayPrototypeGetBuffer,
+  TypedArrayPrototypeGetSymbolToStringTag,
+  TypeError,
+  globalThis: {
+    SharedArrayBuffer,
+  },
+} = primordials;
+
+const {
+  kEmptyObject,
+  setOwnProperty,
+} = require('internal/util');
+const { CryptoKey } = require('internal/crypto/webcrypto');
+const { getDataViewOrTypedArrayBuffer } = require('internal/crypto/util');
+
+function codedTypeError(message, errorProperties = kEmptyObject) {
+  // eslint-disable-next-line no-restricted-syntax
+  const err = new TypeError(message);
+  ObjectAssign(err, errorProperties);
+  return err;
+}
+
+function makeException(message, opts = kEmptyObject) {
+  const prefix = opts.prefix ? opts.prefix + ': ' : '';
+  const context = opts.context?.length === 0 ?
+    '' : (opts.context ?? 'Value') + ' ';
+  return codedTypeError(
+    `${prefix}${context}${message}`,
+    { code: opts.code || 'ERR_INVALID_ARG_TYPE' },
+  );
+}
+
+// https://tc39.es/ecma262/#sec-tonumber
+function toNumber(value, opts = kEmptyObject) {
+  switch (typeof value) {
+    case 'number':
+      return value;
+    case 'bigint':
+      throw makeException(
+        'is a BigInt and cannot be converted to a number.',
+        opts);
+    case 'symbol':
+      throw makeException(
+        'is a Symbol and cannot be converted to a number.',
+        opts);
+    default:
+      return Number(value);
+  }
+}
+
+function type(V) {
+  if (V === null)
+    return 'Null';
+
+  switch (typeof V) {
+    case 'undefined':
+      return 'Undefined';
+    case 'boolean':
+      return 'Boolean';
+    case 'number':
+      return 'Number';
+    case 'string':
+      return 'String';
+    case 'symbol':
+      return 'Symbol';
+    case 'bigint':
+      return 'BigInt';
+    case 'object': // Fall through
+    case 'function': // Fall through
+    default:
+      // Per ES spec, typeof returns an implemention-defined value that is not
+      // any of the existing ones for uncallable non-standard exotic objects.
+      // Yet Type() which the Web IDL spec depends on returns Object for such
+      // cases. So treat the default case as an object.
+      return 'Object';
+  }
+}
+
+const integerPart = MathTrunc;
+
+// This was updated to only consider bitlength up to 32 used by WebCryptoAPI
+function createIntegerConversion(bitLength) {
+  const lowerBound = 0;
+  const upperBound = MathPow(2, bitLength) - 1;
+
+  const twoToTheBitLength = MathPow(2, bitLength);
+
+  return (V, opts = kEmptyObject) => {
+    let x = toNumber(V, opts);
+
+    if (opts.enforceRange) {
+      if (!NumberIsFinite(x)) {
+        throw makeException(
+          'is not a finite number.',
+          opts);
+      }
+
+      x = integerPart(x);
+
+      if (x < lowerBound || x > upperBound) {
+        throw makeException(
+          `is outside the expected range of ${lowerBound} to ${upperBound}.`,
+          { __proto__: null, ...opts, code: 'ERR_OUT_OF_RANGE' },
+        );
+      }
+
+      return x;
+    }
+
+    if (!NumberIsFinite(x) || x === 0) {
+      return 0;
+    }
+
+    x = integerPart(x);
+
+    if (x >= lowerBound && x <= upperBound) {
+      return x;
+    }
+
+    x = x % twoToTheBitLength;
+
+    return x;
+  };
+}
+
+const converters = {};
+
+converters.boolean = (val) => !!val;
+converters.octet = createIntegerConversion(8);
+converters['unsigned short'] = createIntegerConversion(16);
+converters['unsigned long'] = createIntegerConversion(32);
+
+converters.DOMString = function(V, opts = kEmptyObject) {
+  if (typeof V === 'string') {
+    return V;
+  } else if (typeof V === 'symbol') {
+    throw makeException(
+      'is a Symbol and cannot be converted to a string.',
+      opts);
+  }
+
+  return String(V);
+};
+
+converters.object = (V, opts) => {
+  if (type(V) !== 'Object') {
+    throw makeException(
+      'is not an object.',
+      opts);
+  }
+
+  return V;
+};
+
+function isNonSharedArrayBuffer(V) {
+  return ObjectPrototypeIsPrototypeOf(ArrayBufferPrototype, V);
+}
+
+function isSharedArrayBuffer(V) {
+  return ObjectPrototypeIsPrototypeOf(SharedArrayBuffer.prototype, V);
+}
+
+converters.Uint8Array = (V, opts = kEmptyObject) => {
+  if (!ArrayBufferIsView(V) ||
+    TypedArrayPrototypeGetSymbolToStringTag(V) !== 'Uint8Array') {
+    throw makeException(
+      'is not an Uint8Array object.',
+      opts);
+  }
+  if (isSharedArrayBuffer(TypedArrayPrototypeGetBuffer(V))) {
+    throw makeException(
+      'is a view on a SharedArrayBuffer, which is not allowed.',
+      opts);
+  }
+
+  return V;
+};
+
+converters.BufferSource = (V, opts = kEmptyObject) => {
+  if (ArrayBufferIsView(V)) {
+    if (isSharedArrayBuffer(getDataViewOrTypedArrayBuffer(V))) {
+      throw makeException(
+        'is a view on a SharedArrayBuffer, which is not allowed.',
+        opts);
+    }
+
+    return V;
+  }
+
+  if (!isNonSharedArrayBuffer(V)) {
+    throw makeException(
+      'is not instance of ArrayBuffer, Buffer, TypedArray, or DataView.',
+      opts);
+  }
+
+  return V;
+};
+
+converters['sequence<DOMString>'] = createSequenceConverter(
+  converters.DOMString);
+
+function requiredArguments(length, required, opts = kEmptyObject) {
+  if (length < required) {
+    throw makeException(
+      `${required} argument${
+        required === 1 ? '' : 's'
+      } required, but only ${length} present.`,
+      { __proto__: null, ...opts, context: '', code: 'ERR_MISSING_ARGS' });
+  }
+}
+
+function createDictionaryConverter(name, dictionaries) {
+  let hasRequiredKey = false;
+  const allMembers = [];
+  for (let i = 0; i < dictionaries.length; i++) {
+    const member = dictionaries[i];
+    if (member.required) {
+      hasRequiredKey = true;
+    }
+    ArrayPrototypePush(allMembers, member);
+  }
+  ArrayPrototypeSort(allMembers, (a, b) => {
+    if (a.key === b.key) {
+      return 0;
+    }
+    return a.key < b.key ? -1 : 1;
+  });
+
+  return function(V, opts = kEmptyObject) {
+    const typeV = type(V);
+    switch (typeV) {
+      case 'Undefined':
+      case 'Null':
+      case 'Object':
+        break;
+      default:
+        throw makeException(
+          'can not be converted to a dictionary',
+          opts);
+    }
+    const esDict = V;
+    const idlDict = {};
+
+    // Fast path null and undefined.
+    if (V == null && !hasRequiredKey) {
+      return idlDict;
+    }
+
+    for (const member of new SafeArrayIterator(allMembers)) {
+      const key = member.key;
+
+      let esMemberValue;
+      if (typeV === 'Undefined' || typeV === 'Null') {
+        esMemberValue = undefined;
+      } else {
+        esMemberValue = esDict[key];
+      }
+
+      if (esMemberValue !== undefined) {
+        const context = `'${key}' of '${name}'${
+          opts.context ? ` (${opts.context})` : ''
+        }`;
+        const converter = member.converter;
+        const idlMemberValue = converter(esMemberValue, {
+          __proto__: null,
+          ...opts,
+          context,
+        });
+        setOwnProperty(idlDict, key, idlMemberValue);
+      } else if (member.required) {
+        throw makeException(
+          `can not be converted to '${name}' because '${key}' is required in '${name}'.`,
+          { __proto__: null, ...opts, code: 'ERR_MISSING_OPTION' });
+      }
+    }
+
+    return idlDict;
+  };
+}
+
+function createEnumConverter(name, values) {
+  const E = new SafeSet(values);
+
+  return function(V, opts = kEmptyObject) {
+    const S = String(V);
+
+    if (!E.has(S)) {
+      throw makeException(
+        `value '${S}' is not a valid enum value of type ${name}.`,
+        { __proto__: null, ...opts, code: 'ERR_INVALID_ARG_VALUE' });
+    }
+
+    return S;
+  };
+}
+
+function createSequenceConverter(converter) {
+  return function(V, opts = kEmptyObject) {
+    if (type(V) !== 'Object') {
+      throw makeException(
+        'can not be converted to sequence.',
+        opts);
+    }
+    const iter = V?.[SymbolIterator]?.();
+    if (iter === undefined) {
+      throw makeException(
+        'can not be converted to sequence.',
+        opts);
+    }
+    const array = [];
+    while (true) {
+      const res = iter?.next?.();
+      if (res === undefined) {
+        throw makeException(
+          'can not be converted to sequence.',
+          opts);
+      }
+      if (res.done === true) break;
+      const val = converter(res.value, {
+        __proto__: null,
+        ...opts,
+        context: `${opts.context}, index ${array.length}`,
+      });
+      ArrayPrototypePush(array, val);
+    }
+    return array;
+  };
+}
+
+function createInterfaceConverter(name, prototype) {
+  return (V, opts) => {
+    if (!ObjectPrototypeIsPrototypeOf(prototype, V)) {
+      throw makeException(
+        `is not of type ${name}.`,
+        opts);
+    }
+    return V;
+  };
+}
+
+converters.AlgorithmIdentifier = (V, opts) => {
+  // Union for (object or DOMString)
+  if (type(V) === 'Object') {
+    return converters.object(V, opts);
+  }
+  return converters.DOMString(V, opts);
+};
+
+converters.KeyFormat = createEnumConverter('KeyFormat', [
+  'raw',
+  'pkcs8',
+  'spki',
+  'jwk',
+]);
+
+converters.KeyUsage = createEnumConverter('KeyUsage', [
+  'encrypt',
+  'decrypt',
+  'sign',
+  'verify',
+  'deriveKey',
+  'deriveBits',
+  'wrapKey',
+  'unwrapKey',
+]);
+
+converters['sequence<KeyUsage>'] = createSequenceConverter(converters.KeyUsage);
+
+converters.HashAlgorithmIdentifier = converters.AlgorithmIdentifier;
+
+const dictAlgorithm = [
+  {
+    key: 'name',
+    converter: converters.DOMString,
+    required: true,
+  },
+];
+
+converters.Algorithm = createDictionaryConverter(
+  'Algorithm', dictAlgorithm);
+
+converters.BigInteger = converters.Uint8Array;
+
+const dictRsaKeyGenParams = [
+  ...new SafeArrayIterator(dictAlgorithm),
+  {
+    key: 'modulusLength',
+    converter: (V, opts) =>
+      converters['unsigned long'](V, { ...opts, enforceRange: true }),
+    required: true,
+  },
+  {
+    key: 'publicExponent',
+    converter: converters.BigInteger,
+    required: true,
+  },
+];
+
+converters.RsaKeyGenParams = createDictionaryConverter(
+  'RsaKeyGenParams', dictRsaKeyGenParams);
+
+converters.RsaHashedKeyGenParams = createDictionaryConverter(
+  'RsaHashedKeyGenParams', [
+    ...new SafeArrayIterator(dictRsaKeyGenParams),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+  ]);
+
+converters.RsaHashedImportParams = createDictionaryConverter(
+  'RsaHashedImportParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+  ]);
+
+converters.NamedCurve = converters.DOMString;
+
+converters.EcKeyImportParams = createDictionaryConverter(
+  'EcKeyImportParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'namedCurve',
+      converter: converters.NamedCurve,
+      required: true,
+    },
+  ]);
+
+converters.EcKeyGenParams = createDictionaryConverter(
+  'EcKeyGenParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'namedCurve',
+      converter: converters.NamedCurve,
+      required: true,
+    },
+  ]);
+
+converters.AesKeyGenParams = createDictionaryConverter(
+  'AesKeyGenParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'length',
+      converter: (V, opts) =>
+        converters['unsigned short'](V, { ...opts, enforceRange: true }),
+      required: true,
+    },
+  ]);
+
+converters.HmacKeyGenParams = createDictionaryConverter(
+  'HmacKeyGenParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+    {
+      key: 'length',
+      converter: (V, opts) =>
+        converters['unsigned long'](V, { ...opts, enforceRange: true }),
+    },
+  ]);
+
+converters.RsaPssParams = createDictionaryConverter(
+  'RsaPssParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'saltLength',
+      converter: (V, opts) =>
+        converters['unsigned long'](V, { ...opts, enforceRange: true }),
+      required: true,
+    },
+  ]);
+
+converters.RsaOaepParams = createDictionaryConverter(
+  'RsaOaepParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'label',
+      converter: converters.BufferSource,
+    },
+  ]);
+
+converters.EcdsaParams = createDictionaryConverter(
+  'EcdsaParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+  ]);
+
+converters.HmacImportParams = createDictionaryConverter(
+  'HmacImportParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+    {
+      key: 'length',
+      converter: (V, opts) =>
+        converters['unsigned long'](V, { ...opts, enforceRange: true }),
+    },
+  ]);
+
+const simpleDomStringKey = (key) => ({ key, converter: converters.DOMString });
+
+converters.RsaOtherPrimesInfo = createDictionaryConverter(
+  'RsaOtherPrimesInfo', [
+    simpleDomStringKey('r'),
+    simpleDomStringKey('d'),
+    simpleDomStringKey('t'),
+  ]);
+converters['sequence<RsaOtherPrimesInfo>'] = createSequenceConverter(
+  converters.RsaOtherPrimesInfo);
+
+converters.JsonWebKey = createDictionaryConverter(
+  'JsonWebKey', [
+    simpleDomStringKey('kty'),
+    simpleDomStringKey('use'),
+    {
+      key: 'key_ops',
+      converter: converters['sequence<DOMString>'],
+    },
+    simpleDomStringKey('alg'),
+    {
+      key: 'ext',
+      converter: converters.boolean,
+    },
+    simpleDomStringKey('crv'),
+    simpleDomStringKey('x'),
+    simpleDomStringKey('y'),
+    simpleDomStringKey('d'),
+    simpleDomStringKey('n'),
+    simpleDomStringKey('e'),
+    simpleDomStringKey('p'),
+    simpleDomStringKey('q'),
+    simpleDomStringKey('dp'),
+    simpleDomStringKey('dq'),
+    simpleDomStringKey('qi'),
+    {
+      key: 'oth',
+      converter: converters['sequence<RsaOtherPrimesInfo>'],
+    },
+    simpleDomStringKey('k'),
+  ]);
+
+converters.HkdfParams = createDictionaryConverter(
+  'HkdfParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+    {
+      key: 'salt',
+      converter: converters.BufferSource,
+      required: true,
+    },
+    {
+      key: 'info',
+      converter: converters.BufferSource,
+      required: true,
+    },
+  ]);
+
+converters.Pbkdf2Params = createDictionaryConverter(
+  'Pbkdf2Params', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'hash',
+      converter: converters.HashAlgorithmIdentifier,
+      required: true,
+    },
+    {
+      key: 'iterations',
+      converter: (V, opts) =>
+        converters['unsigned long'](V, { ...opts, enforceRange: true }),
+      required: true,
+    },
+    {
+      key: 'salt',
+      converter: converters.BufferSource,
+      required: true,
+    },
+  ]);
+
+converters.AesDerivedKeyParams = createDictionaryConverter(
+  'AesDerivedKeyParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'length',
+      converter: (V, opts) =>
+        converters['unsigned short'](V, { ...opts, enforceRange: true }),
+      required: true,
+    },
+  ]);
+
+converters.AesCbcParams = createDictionaryConverter(
+  'AesCbcParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'iv',
+      converter: converters.BufferSource,
+      required: true,
+    },
+  ]);
+
+converters.AesGcmParams = createDictionaryConverter(
+  'AesGcmParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'iv',
+      converter: converters.BufferSource,
+      required: true,
+    },
+    {
+      key: 'tagLength',
+      converter: (V, opts) =>
+        converters.octet(V, { ...opts, enforceRange: true }),
+    },
+    {
+      key: 'additionalData',
+      converter: converters.BufferSource,
+    },
+  ]);
+
+converters.AesCtrParams = createDictionaryConverter(
+  'AesCtrParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'counter',
+      converter: converters.BufferSource,
+      required: true,
+    },
+    {
+      key: 'length',
+      converter: (V, opts) =>
+        converters.octet(V, { ...opts, enforceRange: true }),
+      required: true,
+    },
+  ]);
+
+converters.CryptoKey = createInterfaceConverter(
+  'CryptoKey', CryptoKey.prototype);
+
+converters.EcdhKeyDeriveParams = createDictionaryConverter(
+  'EcdhKeyDeriveParams', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'public',
+      converter: converters.CryptoKey,
+      required: true,
+    },
+  ]);
+
+converters.Ed448Params = createDictionaryConverter(
+  'Ed448Params', [
+    ...new SafeArrayIterator(dictAlgorithm),
+    {
+      key: 'context',
+      converter: converters.BufferSource,
+      required: false,
+    },
+  ]);
+
+module.exports = {
+  converters,
+  requiredArguments,
+};
diff --git a/test/fixtures/crypto/aes_gcm.js b/test/fixtures/crypto/aes_gcm.js
index 07332d44d9e16d..5d6ca46325b6f3 100644
--- a/test/fixtures/crypto/aes_gcm.js
+++ b/test/fixtures/crypto/aes_gcm.js
@@ -115,7 +115,7 @@ module.exports = function() {
 
   const failing = [];
   kKeyLengths.forEach((keyLength) => {
-    [24, 48, 72, 95, 129, 256].forEach((badTagLength) => {
+    [24, 48, 72, 95, 129].forEach((badTagLength) => {
       failing.push({
         keyBuffer: kKeyBytes[keyLength],
         algorithm: {
diff --git a/test/parallel/test-webcrypto-cryptokey-workers.js b/test/parallel/test-webcrypto-cryptokey-workers.js
index 7f54481149dd59..0397f376e97bb8 100644
--- a/test/parallel/test-webcrypto-cryptokey-workers.js
+++ b/test/parallel/test-webcrypto-cryptokey-workers.js
@@ -25,7 +25,7 @@ const sig = '13691a79fb55a0417e4d6699a32f91ad29283fa2c1439865cc0632931f4f48dc';
 async function doSig(key) {
   const signature = await subtle.sign({
     name: 'HMAC'
-  }, key, 'some data');
+  }, key, Buffer.from('some data'));
   assert.strictEqual(Buffer.from(signature).toString('hex'), sig);
 }
 
diff --git a/test/parallel/test-webcrypto-derivebits-cfrg.js b/test/parallel/test-webcrypto-derivebits-cfrg.js
index 1324a5fecc4c87..a9b0d1c248f275 100644
--- a/test/parallel/test-webcrypto-derivebits-cfrg.js
+++ b/test/parallel/test-webcrypto-derivebits-cfrg.js
@@ -145,7 +145,7 @@ async function prepareKeys() {
         { name: 'X448' },
         keys.X448.privateKey,
         8 * keys.X448.size),
-      { code: 'ERR_INVALID_ARG_TYPE' });
+      { code: 'ERR_MISSING_OPTION' });
   }
 
   {
diff --git a/test/parallel/test-webcrypto-derivebits-ecdh.js b/test/parallel/test-webcrypto-derivebits-ecdh.js
index 2ab152ba5a7615..d14d2e96e2d444 100644
--- a/test/parallel/test-webcrypto-derivebits-ecdh.js
+++ b/test/parallel/test-webcrypto-derivebits-ecdh.js
@@ -166,7 +166,7 @@ async function prepareKeys() {
         { name: 'ECDH' },
         keys['P-384'].privateKey,
         8 * keys['P-384'].size),
-      { code: 'ERR_INVALID_ARG_TYPE' });
+      { code: 'ERR_MISSING_OPTION' });
   }
 
   {
diff --git a/test/parallel/test-webcrypto-derivebits-hkdf.js b/test/parallel/test-webcrypto-derivebits-hkdf.js
index 922c1b347e3b0c..f09a0c5b66d65e 100644
--- a/test/parallel/test-webcrypto-derivebits-hkdf.js
+++ b/test/parallel/test-webcrypto-derivebits-hkdf.js
@@ -292,7 +292,8 @@ async function testDeriveBitsBadHash(
           ...algorithm,
           hash: hash.substring(0, 3) + hash.substring(4)
         }, baseKeys[size], 256), {
-        message: /Unrecognized name/
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
       }),
     assert.rejects(
       subtle.deriveBits(
@@ -301,7 +302,8 @@ async function testDeriveBitsBadHash(
           hash: 'PBKDF2'
         },
         baseKeys[size], 256), {
-        message: /Unrecognized name/
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
       }),
   ]);
 }
@@ -339,7 +341,7 @@ async function testDeriveBitsMissingSalt(
 
   return assert.rejects(
     subtle.deriveBits(algorithm, baseKeys[size], 0), {
-      code: 'ERR_INVALID_ARG_TYPE'
+      code: 'ERR_MISSING_OPTION'
     });
 }
 
@@ -357,7 +359,7 @@ async function testDeriveBitsMissingInfo(
 
   return assert.rejects(
     subtle.deriveBits(algorithm, baseKeys[size], 0), {
-      code: 'ERR_INVALID_ARG_TYPE'
+      code: 'ERR_MISSING_OPTION'
     });
 }
 
@@ -431,7 +433,10 @@ async function testDeriveKeyBadHash(
         keyType,
         true,
         usages),
-      { message: /Unrecognized name/ }),
+      {
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
+      }),
     assert.rejects(
       subtle.deriveKey(
         {
@@ -442,7 +447,10 @@ async function testDeriveKeyBadHash(
         keyType,
         true,
         usages),
-      { message: /Unrecognized name/ }),
+      {
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
+      }),
   ]);
 }
 
diff --git a/test/parallel/test-webcrypto-derivekey-cfrg.js b/test/parallel/test-webcrypto-derivekey-cfrg.js
index 90289c98efd5d5..6952f8b91ca6c3 100644
--- a/test/parallel/test-webcrypto-derivekey-cfrg.js
+++ b/test/parallel/test-webcrypto-derivekey-cfrg.js
@@ -111,7 +111,7 @@ async function prepareKeys() {
         { name: 'X448' },
         keys.X448.privateKey,
         ...otherArgs),
-      { code: 'ERR_INVALID_ARG_TYPE' });
+      { code: 'ERR_MISSING_OPTION' });
   }
 
   {
diff --git a/test/parallel/test-webcrypto-derivekey-ecdh.js b/test/parallel/test-webcrypto-derivekey-ecdh.js
index d3ba660fde6d5b..48e499d775312b 100644
--- a/test/parallel/test-webcrypto-derivekey-ecdh.js
+++ b/test/parallel/test-webcrypto-derivekey-ecdh.js
@@ -128,7 +128,7 @@ async function prepareKeys() {
         { name: 'ECDH' },
         keys['P-384'].privateKey,
         ...otherArgs),
-      { code: 'ERR_INVALID_ARG_TYPE' });
+      { code: 'ERR_MISSING_OPTION' });
   }
 
   {
diff --git a/test/parallel/test-webcrypto-digest.js b/test/parallel/test-webcrypto-digest.js
index 25b78500b7d346..430ec14f6b7c6a 100644
--- a/test/parallel/test-webcrypto-digest.js
+++ b/test/parallel/test-webcrypto-digest.js
@@ -66,11 +66,17 @@ const kData = (new TextEncoder()).encode('hello');
   }));
 })().then(common.mustCall());
 
-Promise.all([1, [], {}, null, undefined].map((i) =>
-  assert.rejects(subtle.digest(i), { message: /Unrecognized name/ })
+Promise.all([1, null, undefined].map((i) =>
+  assert.rejects(subtle.digest(i, Buffer.alloc(0)), {
+    message: /Unrecognized algorithm name/,
+    name: 'NotSupportedError',
+  })
 )).then(common.mustCall());
 
-assert.rejects(subtle.digest(''), { message: /Unrecognized name/ }).then(common.mustCall());
+assert.rejects(subtle.digest('', Buffer.alloc(0)), {
+  message: /Unrecognized algorithm name/,
+  name: 'NotSupportedError',
+}).then(common.mustCall());
 
 Promise.all([1, [], {}, null, undefined].map((i) =>
   assert.rejects(subtle.digest('SHA-256', i), {
@@ -78,14 +84,6 @@ Promise.all([1, [], {}, null, undefined].map((i) =>
   })
 )).then(common.mustCall());
 
-// If there is a mismatch between length and the expected digest size for
-// the selected algorithm, we fail. The length is a Node.js specific
-// addition to the API, and is added as a support for future additional
-// hash algorithms that support variable digest output lengths.
-assert.rejects(subtle.digest({ name: 'SHA-512', length: 510 }, kData), {
-  name: 'OperationError',
-}).then(common.mustCall());
-
 const kSourceData = {
   empty: '',
   short: '156eea7cc14c56cb94db030a4a9d95ff',
diff --git a/test/parallel/test-webcrypto-export-import-cfrg.js b/test/parallel/test-webcrypto-export-import-cfrg.js
index af6a7956e6716a..7ba06442a0e245 100644
--- a/test/parallel/test-webcrypto-export-import-cfrg.js
+++ b/test/parallel/test-webcrypto-export-import-cfrg.js
@@ -260,6 +260,38 @@ async function testImportJwk({ name, publicUsages, privateUsages }, extractable)
       });
   }
 
+  {
+    const invalidUse = name.startsWith('X') ? 'sig' : 'enc';
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { ...jwk, use: invalidUse },
+        { name },
+        extractable,
+        privateUsages),
+      { message: 'Invalid JWK "use" Parameter' });
+  }
+
+  if (name.startsWith('Ed')) {
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { kty: jwk.kty, x: jwk.x, crv: jwk.crv, alg: 'foo' },
+        { name },
+        extractable,
+        publicUsages),
+      { message: 'JWK "alg" does not match the requested algorithm' });
+
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { ...jwk, alg: 'foo' },
+        { name },
+        extractable,
+        privateUsages),
+      { message: 'JWK "alg" does not match the requested algorithm' });
+  }
+
   for (const crv of [undefined, name === 'Ed25519' ? 'Ed448' : 'Ed25519']) {
     await assert.rejects(
       subtle.importKey(
@@ -268,16 +300,16 @@ async function testImportJwk({ name, publicUsages, privateUsages }, extractable)
         { name },
         extractable,
         publicUsages),
-      { message: /Subtype mismatch/ });
+      { message: 'JWK "crv" Parameter and algorithm name mismatch' });
 
     await assert.rejects(
       subtle.importKey(
         'jwk',
-        { kty: jwk.kty, d: jwk.d, x: jwk.x, y: jwk.y, crv },
+        { ...jwk, crv },
         { name },
         extractable,
         publicUsages),
-      { message: /Subtype mismatch/ });
+      { message: 'JWK "crv" Parameter and algorithm name mismatch' });
   }
 }
 
diff --git a/test/parallel/test-webcrypto-export-import-ec.js b/test/parallel/test-webcrypto-export-import-ec.js
index ec5615b6582f88..8bab72cc973779 100644
--- a/test/parallel/test-webcrypto-export-import-ec.js
+++ b/test/parallel/test-webcrypto-export-import-ec.js
@@ -261,6 +261,38 @@ async function testImportJwk(
       });
   }
 
+  {
+    const invalidUse = name === 'ECDH' ? 'sig' : 'enc';
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { ...jwk, use: invalidUse },
+        { name, namedCurve },
+        extractable,
+        privateUsages),
+      { message: 'Invalid JWK "use" Parameter' });
+  }
+
+  if (name === 'ECDSA') {
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { kty: jwk.kty, x: jwk.x, y: jwk.y, crv: jwk.crv, alg: jwk.crv === 'P-256' ? 'ES384' : 'ES256' },
+        { name, namedCurve },
+        extractable,
+        publicUsages),
+      { message: 'JWK "alg" does not match the requested algorithm' });
+
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { ...jwk, alg: jwk.crv === 'P-256' ? 'ES384' : 'ES256' },
+        { name, namedCurve },
+        extractable,
+        privateUsages),
+      { message: 'JWK "alg" does not match the requested algorithm' });
+  }
+
   for (const crv of [undefined, namedCurve === 'P-256' ? 'P-384' : 'P-256']) {
     await assert.rejects(
       subtle.importKey(
@@ -269,16 +301,16 @@ async function testImportJwk(
         { name, namedCurve },
         extractable,
         publicUsages),
-      { message: /Named curve mismatch/ });
+      { message: 'JWK "crv" does not match the requested algorithm' });
 
     await assert.rejects(
       subtle.importKey(
         'jwk',
-        { kty: jwk.kty, d: jwk.d, x: jwk.x, y: jwk.y, crv },
+        { ...jwk, crv },
         { name, namedCurve },
         extractable,
-        publicUsages),
-      { message: /Named curve mismatch/ });
+        privateUsages),
+      { message: 'JWK "crv" does not match the requested algorithm' });
   }
 }
 
diff --git a/test/parallel/test-webcrypto-export-import-rsa.js b/test/parallel/test-webcrypto-export-import-rsa.js
index 1efc69b70aa971..60a8218bfb7efd 100644
--- a/test/parallel/test-webcrypto-export-import-rsa.js
+++ b/test/parallel/test-webcrypto-export-import-rsa.js
@@ -444,6 +444,57 @@ async function testImportJwk(
         message: /key is not extractable/
       });
   }
+
+  {
+    const invalidUse = name === 'RSA-OAEP' ? 'sig' : 'enc';
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { kty: jwk.kty, n: jwk.n, e: jwk.e, use: invalidUse },
+        { name, hash },
+        extractable,
+        publicUsages),
+      { message: 'Invalid JWK "use" Parameter' });
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { ...jwk, use: invalidUse },
+        { name, hash },
+        extractable,
+        privateUsages),
+      { message: 'Invalid JWK "use" Parameter' });
+  }
+
+  {
+    let invalidAlg = name === 'RSA-OAEP' ? name : name === 'RSA-PSS' ? 'PS' : 'RS';
+    switch (name) {
+      case 'RSA-OAEP':
+        if (hash === 'SHA-1')
+          invalidAlg += '-256';
+        break;
+      default:
+        if (hash === 'SHA-256')
+          invalidAlg += '384';
+        else
+          invalidAlg += '256';
+    }
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { kty: jwk.kty, n: jwk.n, e: jwk.e, alg: invalidAlg },
+        { name, hash },
+        extractable,
+        publicUsages),
+      { message: 'JWK "alg" does not match the requested algorithm' });
+    await assert.rejects(
+      subtle.importKey(
+        'jwk',
+        { ...jwk, alg: invalidAlg },
+        { name, hash },
+        extractable,
+        privateUsages),
+      { message: 'JWK "alg" does not match the requested algorithm' });
+  }
 }
 
 // combinations to test
diff --git a/test/parallel/test-webcrypto-export-import.js b/test/parallel/test-webcrypto-export-import.js
index 02e178f72628d5..b560e5b1928099 100644
--- a/test/parallel/test-webcrypto-export-import.js
+++ b/test/parallel/test-webcrypto-export-import.js
@@ -15,19 +15,17 @@ const { subtle } = webcrypto;
     await Promise.all([1, null, undefined, {}, []].map((format) =>
       assert.rejects(
         subtle.importKey(format, keyData, {}, false, ['wrapKey']), {
-          code: 'ERR_INVALID_ARG_TYPE'
+          code: 'ERR_INVALID_ARG_VALUE'
         })
     ));
     await assert.rejects(
       subtle.importKey('not valid', keyData, {}, false, ['wrapKey']), {
         code: 'ERR_INVALID_ARG_VALUE'
       });
-    await Promise.all([1, null, undefined, {}, []].map((keyData) =>
-      assert.rejects(
-        subtle.importKey('raw', keyData, {}, false, ['deriveBits']), {
-          code: 'ERR_INVALID_ARG_TYPE'
-        })
-    ));
+    await assert.rejects(
+      subtle.importKey('raw', 1, {}, false, ['deriveBits']), {
+        code: 'ERR_INVALID_ARG_TYPE'
+      });
     await assert.rejects(
       subtle.importKey('raw', keyData, {
         name: 'HMAC'
@@ -66,7 +64,7 @@ const { subtle } = webcrypto;
         hash: 'SHA-256',
       }, false, ['sign', 'verify']), {
         name: 'DataError',
-        message: 'Invalid JWK keyData'
+        message: 'Invalid keyData'
       });
   }
 
diff --git a/test/parallel/test-webcrypto-keygen.js b/test/parallel/test-webcrypto-keygen.js
index 946a1e58889122..62d871dd4578ae 100644
--- a/test/parallel/test-webcrypto-keygen.js
+++ b/test/parallel/test-webcrypto-keygen.js
@@ -163,8 +163,9 @@ const vectors = {
     return assert.rejects(
       // The extractable and usages values are invalid here also,
       // but the unrecognized algorithm name should be caught first.
-      subtle.generateKey(algorithm, 7, ['zebra']), {
-        message: /Unrecognized name/
+      subtle.generateKey(algorithm, 7, []), {
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
       });
   }
 
@@ -301,12 +302,12 @@ const vectors = {
     // Missing parameters
     await assert.rejects(
       subtle.generateKey({ name, publicExponent, hash }, true, usages), {
-        code: 'ERR_INVALID_ARG_TYPE'
+        code: 'ERR_MISSING_OPTION'
       });
 
     await assert.rejects(
       subtle.generateKey({ name, modulusLength, hash }, true, usages), {
-        code: 'ERR_INVALID_ARG_TYPE'
+        code: 'ERR_MISSING_OPTION'
       });
 
     await assert.rejects(
@@ -314,7 +315,7 @@ const vectors = {
         code: 'ERR_MISSING_OPTION'
       });
 
-    await Promise.all(['', true, {}].map((modulusLength) => {
+    await Promise.all([{}].map((modulusLength) => {
       return assert.rejects(subtle.generateKey({
         name,
         modulusLength,
@@ -340,25 +341,15 @@ const vectors = {
           { code: 'ERR_INVALID_ARG_TYPE' });
       }));
 
-    await Promise.all([true, {}, 1, []].map((hash) => {
+    await Promise.all([true, 1].map((hash) => {
       return assert.rejects(subtle.generateKey({
         name,
         modulusLength,
         publicExponent,
         hash
       }, true, usages), {
-        message: /Unrecognized name/
-      });
-    }));
-
-    await Promise.all(['', {}, 1, []].map((extractable) => {
-      return assert.rejects(subtle.generateKey({
-        name,
-        modulusLength,
-        publicExponent,
-        hash
-      }, extractable, usages), {
-        code: 'ERR_INVALID_ARG_TYPE'
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
       });
     }));
 
@@ -453,12 +444,17 @@ const vectors = {
     assert.strictEqual(privateKey.algorithm.namedCurve, namedCurve);
 
     // Invalid parameters
-    [1, true, {}, [], undefined, null].forEach(async (namedCurve) => {
+    [1, true, {}, [], null].forEach(async (namedCurve) => {
       await assert.rejects(
         subtle.generateKey({ name, namedCurve }, true, privateUsages), {
           name: 'NotSupportedError'
         });
     });
+    await assert.rejects(
+      subtle.generateKey({ name, namedCurve: undefined }, true, privateUsages), {
+        name: 'TypeError',
+        code: 'ERR_MISSING_OPTION'
+      });
   }
 
   const kTests = [
@@ -514,19 +510,18 @@ const vectors = {
     assert.strictEqual(key.algorithm.length, length);
 
     // Invalid parameters
-    [1, 100, 257].forEach(async (length) => {
+    [1, 100, 257, '', false, null].forEach(async (length) => {
       await assert.rejects(
         subtle.generateKey({ name, length }, true, usages), {
           name: 'OperationError'
         });
     });
 
-    ['', {}, [], false, null, undefined].forEach(async (length) => {
-      await assert.rejects(
-        subtle.generateKey({ name, length }, true, usages), {
-          name: 'OperationError',
-        });
-    });
+    await assert.rejects(
+      subtle.generateKey({ name, length: undefined }, true, usages), {
+        name: 'TypeError',
+        code: 'ERR_MISSING_OPTION'
+      });
   }
 
   const kTests = [
@@ -574,17 +569,11 @@ const vectors = {
     assert.strictEqual(key.algorithm.length, length);
     assert.strictEqual(key.algorithm.hash.name, hash);
 
-    ['', {}, [], false, null].forEach(async (length) => {
-      await assert.rejects(
-        subtle.generateKey({ name: 'HMAC', length, hash }, true, usages), {
-          code: 'ERR_INVALID_ARG_TYPE'
-        });
-    });
-
-    [1, {}, [], false, null].forEach(async (hash) => {
+    [1, false, null].forEach(async (hash) => {
       await assert.rejects(
         subtle.generateKey({ name: 'HMAC', length, hash }, true, usages), {
-          message: /Unrecognized name/
+          message: /Unrecognized algorithm name/,
+          name: 'NotSupportedError',
         });
     });
   }
diff --git a/test/parallel/test-webcrypto-sign-verify-ecdsa.js b/test/parallel/test-webcrypto-sign-verify-ecdsa.js
index 4e79e4d4f846d6..388957bc0daff8 100644
--- a/test/parallel/test-webcrypto-sign-verify-ecdsa.js
+++ b/test/parallel/test-webcrypto-sign-verify-ecdsa.js
@@ -135,7 +135,8 @@ async function testVerify({ name,
 
   await assert.rejects(
     subtle.verify({ name, hash: 'sha256' }, publicKey, signature, copy), {
-      message: /Unrecognized name/
+      message: /Unrecognized algorithm name/,
+      name: 'NotSupportedError',
     });
 }
 
diff --git a/test/parallel/test-webcrypto-sign-verify-hmac.js b/test/parallel/test-webcrypto-sign-verify-hmac.js
index 0962773b132768..8f2e730a234e51 100644
--- a/test/parallel/test-webcrypto-sign-verify-hmac.js
+++ b/test/parallel/test-webcrypto-sign-verify-hmac.js
@@ -91,16 +91,14 @@ async function testVerify({ hash,
   // Test failure when wrong hash is used
   {
     const otherhash = hash === 'SHA-1' ? 'SHA-256' : 'SHA-1';
-    assert(!(await subtle.verify({
-      name,
-      hash: otherhash
-    }, key, signature, copy)));
+    const keyWithOtherHash = await subtle.importKey(
+      'raw',
+      keyBuffer,
+      { name, hash: otherhash },
+      false,
+      ['verify']);
+    assert(!(await subtle.verify({ name }, keyWithOtherHash, signature, plaintext)));
   }
-
-  await assert.rejects(
-    subtle.verify({ name, hash: 'sha256' }, key, signature, copy), {
-      message: /Unrecognized name/
-    });
 }
 
 async function testSign({ hash,
@@ -156,7 +154,6 @@ async function testSign({ hash,
     subtle.generateKey({ name }, false, ['sign', 'verify']), {
       name: 'TypeError',
       code: 'ERR_MISSING_OPTION',
-      message: 'algorithm.hash is required'
     });
 
   // Test failure when no sign usage
diff --git a/test/parallel/test-webcrypto-sign-verify-rsa.js b/test/parallel/test-webcrypto-sign-verify-rsa.js
index 60815c5ea0451d..69eb3f8f18a4ef 100644
--- a/test/parallel/test-webcrypto-sign-verify-rsa.js
+++ b/test/parallel/test-webcrypto-sign-verify-rsa.js
@@ -112,19 +112,14 @@ async function testVerify({
   // Test failure when wrong hash is used
   {
     const otherhash = hash === 'SHA-1' ? 'SHA-256' : 'SHA-1';
-    assert(!(await subtle.verify({
-      ...algorithm,
-      hash: otherhash
-    }, publicKey, signature, copy)));
+    const keyWithOtherHash = await subtle.importKey(
+      'spki',
+      publicKeyBuffer,
+      { name: algorithm.name, hash: otherhash },
+      false,
+      ['verify']);
+    assert(!(await subtle.verify(algorithm, keyWithOtherHash, signature, plaintext)));
   }
-
-  await assert.rejects(
-    subtle.verify(
-      { ...algorithm, hash: 'sha256' },
-      publicKey,
-      signature,
-      copy),
-    { message: /Unrecognized name/ });
 }
 
 async function testSign({
diff --git a/test/parallel/test-webcrypto-util.js b/test/parallel/test-webcrypto-util.js
index 4bb14a7f91494f..b8d5361433fd0e 100644
--- a/test/parallel/test-webcrypto-util.js
+++ b/test/parallel/test-webcrypto-util.js
@@ -11,15 +11,9 @@ const {
   normalizeAlgorithm,
 } = require('internal/crypto/util');
 
-{
-  // Check that normalizeAlgorithm does not add an undefined hash property.
-  assert.strictEqual('hash' in normalizeAlgorithm({ name: 'ECDH' }), false);
-  assert.strictEqual('hash' in normalizeAlgorithm('ECDH'), false);
-}
-
 {
   // Check that normalizeAlgorithm does not mutate object inputs.
-  const algorithm = { name: 'ECDH', hash: 'SHA-256' };
-  assert.strictEqual(normalizeAlgorithm(algorithm) !== algorithm, true);
-  assert.deepStrictEqual(algorithm, { name: 'ECDH', hash: 'SHA-256' });
+  const algorithm = { name: 'ECDSA', hash: 'SHA-256' };
+  assert.strictEqual(normalizeAlgorithm(algorithm, 'sign') !== algorithm, true);
+  assert.deepStrictEqual(algorithm, { name: 'ECDSA', hash: 'SHA-256' });
 }
diff --git a/test/parallel/test-webcrypto-webidl.js b/test/parallel/test-webcrypto-webidl.js
new file mode 100644
index 00000000000000..a6183960073d0b
--- /dev/null
+++ b/test/parallel/test-webcrypto-webidl.js
@@ -0,0 +1,519 @@
+// Flags: --expose-internals
+'use strict';
+
+const common = require('../common');
+if (!common.hasCrypto)
+  common.skip('missing crypto');
+
+const assert = require('assert');
+
+const webidl = require('internal/crypto/webidl');
+const { webcrypto } = require('crypto');
+const { generateKeySync } = require('crypto');
+
+const { subtle } = webcrypto;
+const { converters } = webidl;
+const prefix = "Failed to execute 'fn' on 'interface'";
+const context = '1st argument';
+const opts = { prefix, context };
+
+// Required arguments.length
+{
+  assert.throws(() => webidl.requiredArguments(0, 3, { prefix }), {
+    code: 'ERR_MISSING_ARGS',
+    name: 'TypeError',
+    message: `${prefix}: 3 arguments required, but only 0 present.`
+  });
+
+  assert.throws(() => webidl.requiredArguments(0, 1, { prefix }), {
+    code: 'ERR_MISSING_ARGS',
+    name: 'TypeError',
+    message: `${prefix}: 1 argument required, but only 0 present.`
+  });
+
+  // Does not throw when extra are added
+  webidl.requiredArguments(4, 3, { prefix });
+}
+
+// boolean
+{
+  assert.strictEqual(converters.boolean(0), false);
+  assert.strictEqual(converters.boolean(NaN), false);
+  assert.strictEqual(converters.boolean(undefined), false);
+  assert.strictEqual(converters.boolean(null), false);
+  assert.strictEqual(converters.boolean(false), false);
+  assert.strictEqual(converters.boolean(''), false);
+
+  assert.strictEqual(converters.boolean(1), true);
+  assert.strictEqual(converters.boolean(Number.POSITIVE_INFINITY), true);
+  assert.strictEqual(converters.boolean(Number.NEGATIVE_INFINITY), true);
+  assert.strictEqual(converters.boolean('1'), true);
+  assert.strictEqual(converters.boolean('0'), true);
+  assert.strictEqual(converters.boolean('false'), true);
+  assert.strictEqual(converters.boolean(function() {}), true);
+  assert.strictEqual(converters.boolean(Symbol()), true);
+  assert.strictEqual(converters.boolean([]), true);
+  assert.strictEqual(converters.boolean({}), true);
+}
+
+// int conversion
+// https://webidl.spec.whatwg.org/#abstract-opdef-converttoint
+{
+  for (const [converter, max] of [
+    [converters.octet, Math.pow(2, 8) - 1],
+    [converters['unsigned short'], Math.pow(2, 16) - 1],
+    [converters['unsigned long'], Math.pow(2, 32) - 1],
+  ]) {
+    assert.strictEqual(converter(0), 0);
+    assert.strictEqual(converter(max), max);
+    assert.strictEqual(converter('' + 0), 0);
+    assert.strictEqual(converter('' + max), max);
+    assert.strictEqual(converter(3), 3);
+    assert.strictEqual(converter('' + 3), 3);
+    assert.strictEqual(converter(3.1), 3);
+    assert.strictEqual(converter(3.7), 3);
+
+    assert.strictEqual(converter(max + 1), 0);
+    assert.strictEqual(converter(max + 2), 1);
+    assert.throws(() => converter(max + 1, { ...opts, enforceRange: true }), {
+      name: 'TypeError',
+      code: 'ERR_OUT_OF_RANGE',
+      message: `${prefix}: ${context} is outside the expected range of 0 to ${max}.`,
+    });
+
+    assert.strictEqual(converter({}), 0);
+    assert.strictEqual(converter(NaN), 0);
+    assert.strictEqual(converter(false), 0);
+    assert.strictEqual(converter(true), 1);
+    assert.strictEqual(converter('1'), 1);
+    assert.strictEqual(converter('0'), 0);
+    assert.strictEqual(converter('{}'), 0);
+    assert.strictEqual(converter({}), 0);
+    assert.strictEqual(converter([]), 0);
+    assert.strictEqual(converter(function() {}), 0);
+
+    assert.throws(() => converter(Symbol(), opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_TYPE',
+      message: `${prefix}: ${context} is a Symbol and cannot be converted to a number.`
+    });
+    assert.throws(() => converter(0n, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_TYPE',
+      message: `${prefix}: ${context} is a BigInt and cannot be converted to a number.`
+    });
+  }
+}
+
+// DOMString
+{
+  assert.strictEqual(converters.DOMString(1), '1');
+  assert.strictEqual(converters.DOMString(1n), '1');
+  assert.strictEqual(converters.DOMString(false), 'false');
+  assert.strictEqual(converters.DOMString(true), 'true');
+  assert.strictEqual(converters.DOMString(undefined), 'undefined');
+  assert.strictEqual(converters.DOMString(NaN), 'NaN');
+  assert.strictEqual(converters.DOMString({}), '[object Object]');
+  assert.strictEqual(converters.DOMString({ foo: 'bar' }), '[object Object]');
+  assert.strictEqual(converters.DOMString([]), '');
+  assert.strictEqual(converters.DOMString([1, 2]), '1,2');
+
+  assert.throws(() => converters.DOMString(Symbol(), opts), {
+    name: 'TypeError',
+    code: 'ERR_INVALID_ARG_TYPE',
+    message: `${prefix}: ${context} is a Symbol and cannot be converted to a string.`
+  });
+}
+
+// object
+{
+  for (const good of [{}, [], new Array(), function() {}]) {
+    assert.deepStrictEqual(converters.object(good), good);
+  }
+
+  for (const bad of [undefined, null, NaN, false, true, 0, 1, '', 'foo', Symbol(), 9n]) {
+    assert.throws(() => converters.object(bad, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_TYPE',
+      message: `${prefix}: ${context} is not an object.`
+    });
+  }
+}
+
+// Uint8Array
+{
+  for (const good of [Buffer.alloc(0), new Uint8Array()]) {
+    assert.deepStrictEqual(converters.Uint8Array(good), good);
+  }
+
+  for (const bad of [new ArrayBuffer(), new SharedArrayBuffer(), [], null, 'foo', undefined, true]) {
+    assert.throws(() => converters.Uint8Array(bad, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_TYPE',
+      message: `${prefix}: ${context} is not an Uint8Array object.`
+    });
+  }
+
+  assert.throws(() => converters.Uint8Array(new Uint8Array(new SharedArrayBuffer()), opts), {
+    name: 'TypeError',
+    code: 'ERR_INVALID_ARG_TYPE',
+    message: `${prefix}: ${context} is a view on a SharedArrayBuffer, which is not allowed.`
+  });
+}
+
+// BufferSource
+{
+  for (const good of [
+    Buffer.alloc(0),
+    new Uint8Array(),
+    new ArrayBuffer(),
+    new DataView(new ArrayBuffer()),
+    new BigInt64Array(),
+    new BigUint64Array(),
+    new Float32Array(),
+    new Float64Array(),
+    new Int8Array(),
+    new Int16Array(),
+    new Int32Array(),
+    new Uint8ClampedArray(),
+    new Uint16Array(),
+    new Uint32Array(),
+  ]) {
+    assert.deepStrictEqual(converters.BufferSource(good), good);
+  }
+
+  for (const bad of [new SharedArrayBuffer(), [], null, 'foo', undefined, true]) {
+    assert.throws(() => converters.BufferSource(bad, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_TYPE',
+      message: `${prefix}: ${context} is not instance of ArrayBuffer, Buffer, TypedArray, or DataView.`
+    });
+  }
+
+  assert.throws(() => converters.BufferSource(new Uint8Array(new SharedArrayBuffer()), opts), {
+    name: 'TypeError',
+    code: 'ERR_INVALID_ARG_TYPE',
+    message: `${prefix}: ${context} is a view on a SharedArrayBuffer, which is not allowed.`
+  });
+}
+
+// CryptoKey
+{
+
+  subtle.generateKey({ name: 'AES-CBC', length: 128 }, false, ['encrypt']).then((key) => {
+    assert.deepStrictEqual(converters.CryptoKey(key), key);
+  }).then(common.mustCall());
+
+  for (const bad of [
+    generateKeySync('aes', { length: 128 }),
+    undefined, null, 1, {}, Symbol(), true, false, [],
+  ]) {
+    assert.throws(() => converters.CryptoKey(bad, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_TYPE',
+      message: `${prefix}: ${context} is not of type CryptoKey.`
+    });
+  }
+}
+
+// AlgorithmIdentifier (Union for (object or DOMString))
+{
+  assert.strictEqual(converters.AlgorithmIdentifier('foo'), 'foo');
+  assert.deepStrictEqual(converters.AlgorithmIdentifier({ name: 'foo' }), { name: 'foo' });
+}
+
+// JsonWebKey
+{
+  for (const good of [
+    {},
+    { use: 'sig' },
+    { key_ops: ['sign'] },
+    { ext: true },
+    { oth: [] },
+    { oth: [{ r: '', d: '', t: '' }] },
+  ]) {
+    assert.deepStrictEqual(converters.JsonWebKey(good), good);
+    assert.deepStrictEqual(converters.JsonWebKey({ ...good, filtered: 'out' }), good);
+  }
+}
+
+// KeyFormat
+{
+  for (const good of ['jwk', 'spki', 'pkcs8', 'raw']) {
+    assert.strictEqual(converters.KeyFormat(good), good);
+  }
+
+  for (const bad of ['foo', 1, false]) {
+    assert.throws(() => converters.KeyFormat(bad, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_VALUE',
+      message: `${prefix}: ${context} value '${bad}' is not a valid enum value of type KeyFormat.`,
+    });
+  }
+}
+
+// KeyUsage
+{
+  for (const good of [
+    'encrypt',
+    'decrypt',
+    'sign',
+    'verify',
+    'deriveKey',
+    'deriveBits',
+    'wrapKey',
+    'unwrapKey',
+  ]) {
+    assert.strictEqual(converters.KeyUsage(good), good);
+  }
+
+  for (const bad of ['foo', 1, false]) {
+    assert.throws(() => converters.KeyUsage(bad, opts), {
+      name: 'TypeError',
+      code: 'ERR_INVALID_ARG_VALUE',
+      message: `${prefix}: ${context} value '${bad}' is not a valid enum value of type KeyUsage.`,
+    });
+  }
+}
+
+// Algorithm
+{
+  const good = { name: 'RSA-PSS' };
+  assert.deepStrictEqual(converters.Algorithm({ ...good, filtered: 'out' }, opts), good);
+
+  assert.throws(() => converters.Algorithm({}, opts), {
+    name: 'TypeError',
+    code: 'ERR_MISSING_OPTION',
+    message: `${prefix}: ${context} can not be converted to 'Algorithm' because 'name' is required in 'Algorithm'.`,
+  });
+}
+
+// RsaHashedKeyGenParams
+{
+  for (const good of [
+    {
+      name: 'RSA-OAEP',
+      hash: { name: 'SHA-1' },
+      modulusLength: 2048,
+      publicExponent: new Uint8Array([1, 0, 1]),
+    },
+    {
+      name: 'RSA-OAEP',
+      hash: 'SHA-1',
+      modulusLength: 2048,
+      publicExponent: new Uint8Array([1, 0, 1]),
+    },
+  ]) {
+    assert.deepStrictEqual(converters.RsaHashedKeyGenParams({ ...good, filtered: 'out' }, opts), good);
+    for (const required of ['hash', 'publicExponent', 'modulusLength']) {
+      assert.throws(() => converters.RsaHashedKeyGenParams({ ...good, [required]: undefined }, opts), {
+        name: 'TypeError',
+        code: 'ERR_MISSING_OPTION',
+        message: `${prefix}: ${context} can not be converted to 'RsaHashedKeyGenParams' because '${required}' is required in 'RsaHashedKeyGenParams'.`,
+      });
+    }
+  }
+}
+
+// RsaHashedImportParams
+{
+  for (const good of [
+    { name: 'RSA-OAEP', hash: { name: 'SHA-1' } },
+    { name: 'RSA-OAEP', hash: 'SHA-1' },
+  ]) {
+    assert.deepStrictEqual(converters.RsaHashedImportParams({ ...good, filtered: 'out' }, opts), good);
+    assert.throws(() => converters.RsaHashedImportParams({ ...good, hash: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to 'RsaHashedImportParams' because 'hash' is required in 'RsaHashedImportParams'.`,
+    });
+  }
+}
+
+// RsaPssParams
+{
+  const good = { name: 'RSA-PSS', saltLength: 20 };
+  assert.deepStrictEqual(converters.RsaPssParams({ ...good, filtered: 'out' }, opts), good);
+
+  assert.throws(() => converters.RsaPssParams({ ...good, saltLength: undefined }, opts), {
+    name: 'TypeError',
+    code: 'ERR_MISSING_OPTION',
+    message: `${prefix}: ${context} can not be converted to 'RsaPssParams' because 'saltLength' is required in 'RsaPssParams'.`,
+  });
+}
+
+// RsaOaepParams
+{
+  for (const good of [{ name: 'RSA-OAEP' }, { name: 'RSA-OAEP', label: Buffer.alloc(0) }]) {
+    assert.deepStrictEqual(converters.RsaOaepParams({ ...good, filtered: 'out' }, opts), good);
+  }
+}
+
+// EcKeyImportParams, EcKeyGenParams
+{
+  for (const name of ['EcKeyImportParams', 'EcKeyGenParams']) {
+    const { [name]: converter } = converters;
+
+    const good = { name: 'ECDSA', namedCurve: 'P-256' };
+    assert.deepStrictEqual(converter({ ...good, filtered: 'out' }, opts), good);
+
+    assert.throws(() => converter({ ...good, namedCurve: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to '${name}' because 'namedCurve' is required in '${name}'.`,
+    });
+  }
+}
+
+// EcdsaParams
+{
+  for (const good of [
+    { name: 'ECDSA', hash: { name: 'SHA-1' } },
+    { name: 'ECDSA', hash: 'SHA-1' },
+  ]) {
+    assert.deepStrictEqual(converters.EcdsaParams({ ...good, filtered: 'out' }, opts), good);
+    assert.throws(() => converters.EcdsaParams({ ...good, hash: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to 'EcdsaParams' because 'hash' is required in 'EcdsaParams'.`,
+    });
+  }
+}
+
+// HmacKeyGenParams, HmacImportParams
+{
+  for (const name of ['HmacKeyGenParams', 'HmacImportParams']) {
+    const { [name]: converter } = converters;
+
+    for (const good of [
+      { name: 'HMAC', hash: { name: 'SHA-1' } },
+      { name: 'HMAC', hash: { name: 'SHA-1' }, length: 20 },
+      { name: 'HMAC', hash: 'SHA-1' },
+      { name: 'HMAC', hash: 'SHA-1', length: 20 },
+    ]) {
+      assert.deepStrictEqual(converter({ ...good, filtered: 'out' }, opts), good);
+      assert.throws(() => converter({ ...good, hash: undefined }, opts), {
+        name: 'TypeError',
+        code: 'ERR_MISSING_OPTION',
+        message: `${prefix}: ${context} can not be converted to '${name}' because 'hash' is required in '${name}'.`,
+      });
+    }
+  }
+}
+
+// AesKeyGenParams, AesDerivedKeyParams
+{
+  for (const name of ['AesKeyGenParams', 'AesDerivedKeyParams']) {
+    const { [name]: converter } = converters;
+
+    const good = { name: 'AES-CBC', length: 128 };
+    assert.deepStrictEqual(converter({ ...good, filtered: 'out' }, opts), good);
+
+    assert.throws(() => converter({ ...good, length: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to '${name}' because 'length' is required in '${name}'.`,
+    });
+  }
+}
+
+// HkdfParams
+{
+  for (const good of [
+    { name: 'HKDF', hash: { name: 'SHA-1' }, salt: Buffer.alloc(0), info: Buffer.alloc(0) },
+    { name: 'HKDF', hash: 'SHA-1', salt: Buffer.alloc(0), info: Buffer.alloc(0) },
+  ]) {
+    assert.deepStrictEqual(converters.HkdfParams({ ...good, filtered: 'out' }, opts), good);
+    for (const required of ['hash', 'salt', 'info']) {
+      assert.throws(() => converters.HkdfParams({ ...good, [required]: undefined }, opts), {
+        name: 'TypeError',
+        code: 'ERR_MISSING_OPTION',
+        message: `${prefix}: ${context} can not be converted to 'HkdfParams' because '${required}' is required in 'HkdfParams'.`,
+      });
+    }
+  }
+}
+
+// Pbkdf2Params
+{
+  for (const good of [
+    { name: 'PBKDF2', hash: { name: 'SHA-1' }, iterations: 5, salt: Buffer.alloc(0) },
+    { name: 'PBKDF2', hash: 'SHA-1', iterations: 5, salt: Buffer.alloc(0) },
+  ]) {
+    assert.deepStrictEqual(converters.Pbkdf2Params({ ...good, filtered: 'out' }, opts), good);
+    for (const required of ['hash', 'iterations', 'salt']) {
+      assert.throws(() => converters.Pbkdf2Params({ ...good, [required]: undefined }, opts), {
+        name: 'TypeError',
+        code: 'ERR_MISSING_OPTION',
+        message: `${prefix}: ${context} can not be converted to 'Pbkdf2Params' because '${required}' is required in 'Pbkdf2Params'.`,
+      });
+    }
+  }
+}
+
+// AesCbcParams
+{
+  const good = { name: 'AES-CBC', iv: Buffer.alloc(0) };
+  assert.deepStrictEqual(converters.AesCbcParams({ ...good, filtered: 'out' }, opts), good);
+
+  assert.throws(() => converters.AesCbcParams({ ...good, iv: undefined }, opts), {
+    name: 'TypeError',
+    code: 'ERR_MISSING_OPTION',
+    message: `${prefix}: ${context} can not be converted to 'AesCbcParams' because 'iv' is required in 'AesCbcParams'.`,
+  });
+}
+
+// AesGcmParams
+{
+  for (const good of [
+    { name: 'AES-GCM', iv: Buffer.alloc(0) },
+    { name: 'AES-GCM', iv: Buffer.alloc(0), tagLength: 16 },
+    { name: 'AES-GCM', iv: Buffer.alloc(0), tagLength: 16, additionalData: Buffer.alloc(0) },
+  ]) {
+    assert.deepStrictEqual(converters.AesGcmParams({ ...good, filtered: 'out' }, opts), good);
+
+    assert.throws(() => converters.AesGcmParams({ ...good, iv: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to 'AesGcmParams' because 'iv' is required in 'AesGcmParams'.`,
+    });
+  }
+}
+
+// AesCtrParams
+{
+  const good = { name: 'AES-CTR', counter: Buffer.alloc(0), length: 20 };
+  assert.deepStrictEqual(converters.AesCtrParams({ ...good, filtered: 'out' }, opts), good);
+
+  for (const required of ['counter', 'length']) {
+    assert.throws(() => converters.AesCtrParams({ ...good, [required]: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to 'AesCtrParams' because '${required}' is required in 'AesCtrParams'.`,
+    });
+  }
+}
+
+// EcdhKeyDeriveParams
+{
+  subtle.generateKey({ name: 'ECDH', namedCurve: 'P-256' }, false, ['deriveBits']).then((kp) => {
+    const good = { name: 'ECDH', public: kp.publicKey };
+    assert.deepStrictEqual(converters.EcdhKeyDeriveParams({ ...good, filtered: 'out' }, opts), good);
+
+    assert.throws(() => converters.EcdhKeyDeriveParams({ ...good, public: undefined }, opts), {
+      name: 'TypeError',
+      code: 'ERR_MISSING_OPTION',
+      message: `${prefix}: ${context} can not be converted to 'EcdhKeyDeriveParams' because 'public' is required in 'EcdhKeyDeriveParams'.`,
+    });
+  }).then(common.mustCall());
+}
+
+// Ed448Params
+{
+  for (const good of [
+    { name: 'Ed448', context: new Uint8Array() },
+    { name: 'Ed448' },
+  ]) {
+    assert.deepStrictEqual(converters.Ed448Params({ ...good, filtered: 'out' }, opts), good);
+  }
+}
diff --git a/test/pummel/test-webcrypto-derivebits-pbkdf2.js b/test/pummel/test-webcrypto-derivebits-pbkdf2.js
index 6e3e7f532bac28..03d1c7ec4fa37d 100644
--- a/test/pummel/test-webcrypto-derivebits-pbkdf2.js
+++ b/test/pummel/test-webcrypto-derivebits-pbkdf2.js
@@ -382,7 +382,7 @@ async function setupBaseKeys() {
     promises.push(
       subtle.importKey(
         'raw',
-        kPasswords[size],
+        Buffer.from(kPasswords[size], 'hex'),
         { name: 'PBKDF2' },
         false,
         ['deriveBits'])
@@ -391,7 +391,7 @@ async function setupBaseKeys() {
     promises.push(
       subtle.importKey(
         'raw',
-        kPasswords[size],
+        Buffer.from(kPasswords[size], 'hex'),
         { name: 'PBKDF2' },
         false,
         ['deriveKey'])
@@ -470,7 +470,7 @@ async function testDeriveBitsBadHash(
   hash,
   iterations) {
   const salt = Buffer.from(kSalts[saltSize], 'hex');
-  const algorithm = { name: 'HKDF', salt, iterations };
+  const algorithm = { name: 'PBKDF2', salt, iterations };
 
   return Promise.all([
     assert.rejects(
@@ -479,7 +479,8 @@ async function testDeriveBitsBadHash(
           ...algorithm,
           hash: hash.substring(0, 3) + hash.substring(4)
         }, baseKeys[size], 256), {
-        message: /Unrecognized name/
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
       }),
     assert.rejects(
       subtle.deriveBits(
@@ -488,7 +489,8 @@ async function testDeriveBitsBadHash(
           hash: 'HKDF'
         },
         baseKeys[size], 256), {
-        message: /Unrecognized name/
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
       }),
   ]);
 }
@@ -565,7 +567,10 @@ async function testDeriveKeyBadHash(
         keyType,
         true,
         usages),
-      { message: /Unrecognized name/ }),
+      {
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
+      }),
     assert.rejects(
       subtle.deriveKey(
         {
@@ -576,7 +581,10 @@ async function testDeriveKeyBadHash(
         keyType,
         true,
         usages),
-      { message: /Unrecognized name/ }),
+      {
+        message: /Unrecognized algorithm name/,
+        name: 'NotSupportedError',
+      }),
   ]);
 }
 
diff --git a/test/wpt/status/WebCryptoAPI.json b/test/wpt/status/WebCryptoAPI.json
index 68360c9af2b314..3ab70ca95b2f90 100644
--- a/test/wpt/status/WebCryptoAPI.json
+++ b/test/wpt/status/WebCryptoAPI.json
@@ -1,4 +1,17 @@
 {
+  "encrypt_decrypt/aes_gcm.https.any.js": {
+    "fail": {
+      "note": "We're throwing correct error for the WebIDL definition, WPT needs update: https://github.com/web-platform-tests/wpt/pull/37734",
+      "expected": [
+        "AES-GCM 128-bit key, illegal tag length 256-bits",
+        "AES-GCM 192-bit key, illegal tag length 256-bits",
+        "AES-GCM 256-bit key, illegal tag length 256-bits",
+        "AES-GCM 128-bit key, illegal tag length 256-bits decryption",
+        "AES-GCM 192-bit key, illegal tag length 256-bits decryption",
+        "AES-GCM 256-bit key, illegal tag length 256-bits decryption"
+      ]
+    }
+  },
   "algorithm-discards-context.https.window.js": {
     "skip": "Not relevant in Node.js context"
   },