Add test vectors from Project Wycheproof for secp256r1

packages/crypto/Cargo.toml

@@ -29,6 +29,7 @@ criterion = "0.5.1"
 serde = { version = "1.0.103", default-features = false, features = ["derive", "alloc"] }
 serde_json = "1.0.40"
 sha2 = "0.10"
+sha3 = "0.10"
 hex = "0.4"
 hex-literal = "0.3.1"
 english-numbers = "0.3"

packages/crypto/testdata/wycheproof/README.md

@@ -0,0 +1,21 @@
+# Wycheproof test data
+
+This folder contains test vectors from
+[Project Wycheproof](https://github.com/google/wycheproof) to increase the test
+coverage of signature verification implementations.
+
+This test data is used by integration tests in `test/wycheproof_*.rs`.
+
+## Update
+
+To ensure integrity of the files and update them to the latest version, run this
+from the repo root:
+
+```sh
+(cd packages/crypto/testdata/wycheproof \
+  && curl -sSL https://github.com/google/wycheproof/raw/master/testvectors_v1/ecdsa_secp256r1_sha256_test.json > ecdsa_secp256r1_sha256_test.json \
+  && curl -sSL https://github.com/google/wycheproof/raw/master/testvectors_v1/ecdsa_secp256r1_sha512_test.json > ecdsa_secp256r1_sha512_test.json \
+  && curl -sSL https://github.com/google/wycheproof/raw/master/testvectors_v1/ecdsa_secp256r1_sha3_256_test.json > ecdsa_secp256r1_sha3_256_test.json \
+  && curl -sSL https://github.com/google/wycheproof/raw/master/testvectors_v1/ecdsa_secp256r1_sha3_512_test.json > ecdsa_secp256r1_sha3_512_test.json \
+  )
+```