Add support for explicit java.security.Provider to ServiceAccountCred… #411

stian-svedenborg-gul-katt · 2020-03-02T09:08:15Z

…entials

This enables the storage of service account credentials in external key
storage such as remote KeyVaults or HSMs.

Fixes #410

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stian-svedenborg-gul-katt · 2020-03-02T09:16:05Z

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oauth2_http/java/com/google/auth/oauth2/ServiceAccountCredentials.java

oauth2_http/javatests/com/google/auth/oauth2/ServiceAccountCredentialsTest.java

elharo · 2020-03-02T11:06:18Z

oauth2_http/java/com/google/auth/oauth2/ServiceAccountCredentials.java

@@ -667,14 +691,8 @@ String createAssertion(JsonFactory jsonFactory, long currentTime, String audienc
      payload.setAudience(audience);
    }

-    String assertion;
-    try {
-      assertion = JsonWebSignature.signUsingRsaSha256(privateKey, jsonFactory, header, payload);


Critical: I'm not sure the new code is using this algorithm. I might need to patch this into an IDE and check.

The signing algorithm is dictated by OAuth2Utils.SIGNATURE_ALGORITHM. Which is "SHA256withRSA"

OK. Since this is security critical code I'm going to need go over this carefully and make sure of that. It might take a little time to review, or perhaps someone else can get to this before I do.

codecov · 2020-03-02T13:08:39Z

Codecov Report

Merging #411 into master will increase coverage by 0.13%.
The diff coverage is 85%.

@@             Coverage Diff              @@
##             master     #411      +/-   ##
============================================
+ Coverage     79.53%   79.66%   +0.13%     
- Complexity      397      399       +2     
============================================
  Files            27       27              
  Lines          1803     1810       +7     
  Branches        188      188              
============================================
+ Hits           1434     1442       +8     
+ Misses          269      268       -1     
  Partials        100      100

Impacted Files	Coverage Δ	Complexity Δ
.../google/auth/oauth2/ServiceAccountCredentials.java	`83.53% <85%> (+0.88%)`	`50 <6> (+2)`	⬆️

Continue to review full report at Codecov.

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stian-svedenborg-gul-katt · 2020-03-02T13:10:48Z

@elharo Comments fixed or answered.

elharo · 2020-03-02T13:22:45Z

oauth2_http/java/com/google/auth/oauth2/ServiceAccountCredentials.java

+      byte[] signature = this.sign(signedContentBytes);
+      return signedContentString + "." + Base64.encodeBase64URLSafeString(signature);
+
+    } catch (SigningException e) {


Is there a reason to convert this to an IOException instead of declaring this method to throw SigningException?

No, not really, I just kept the pattern that was there before.

SigningException is unchecked. Whilst the api for refreshAccessToken declares that it throws IOException. (I'm not sure I agree that SigningException should be unchecked, but that is outside the scope of this change).

In any case I argue that a failing signature should be handled by the calling code, and as such it should be changed to an IOException before exiting refreshAccessToken.

As to whether I should keep the conversion inside signJsonWebSignature or move it to createAssertion (and duplicate it in createAssertionForIdToken) I'll follow ruling.

@elharo I'll await your answer on this before I reupload. (I'm I doing this correctly with the --amends by the way?)

I honestly do not have enough git-fu to tell. Whatever you're doing seems to work fine on my end. Just commit and upload as you need to. We'll squash the commits when we merge.

elharo · 2020-03-02T13:23:42Z

oauth2_http/java/com/google/auth/oauth2/ServiceAccountCredentials.java

@@ -667,14 +691,8 @@ String createAssertion(JsonFactory jsonFactory, long currentTime, String audienc
      payload.setAudience(audience);
    }

-    String assertion;
-    try {
-      assertion = JsonWebSignature.signUsingRsaSha256(privateKey, jsonFactory, header, payload);


OK. Since this is security critical code I'm going to need go over this carefully and make sure of that. It might take a little time to review, or perhaps someone else can get to this before I do.

oauth2_http/javatests/com/google/auth/oauth2/ServiceAccountCredentialsTest.java

oauth2_http/java/com/google/auth/oauth2/ServiceAccountCredentials.java

…ntCredentials This enables the storage of service account credentials in external key storage such as remote KeyVaults or HSMs.

stian-svedenborg-gul-katt · 2020-03-19T13:58:14Z

@elharo Hi any chance of this one getting some love soon? :)

stian-svedenborg-gul-katt requested a review from a team as a code owner March 2, 2020 09:08

googlebot added the cla: no This human has *not* signed the Contributor License Agreement. label Mar 2, 2020

googlebot added cla: yes This human has signed the Contributor License Agreement. and removed cla: no This human has *not* signed the Contributor License Agreement. labels Mar 2, 2020

stian-svedenborg-gul-katt force-pushed the explicit-provider branch from 7054a1a to 2eb46f9 Compare March 2, 2020 09:18

elharo suggested changes Mar 2, 2020

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elharo added kokoro:run Add this label to force Kokoro to re-run the tests. priority: p2 Moderately-important priority. Fix may not be included in next release. semver: minor A new feature was added. No breaking changes. labels Mar 2, 2020

kokoro-team removed the kokoro:run Add this label to force Kokoro to re-run the tests. label Mar 2, 2020

stian-svedenborg-gul-katt force-pushed the explicit-provider branch from 2eb46f9 to d75519b Compare March 2, 2020 13:08

elharo reviewed Mar 2, 2020

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stian-svedenborg-gul-katt force-pushed the explicit-provider branch from d75519b to 153f5e5 Compare March 3, 2020 05:59

stian-svedenborg-gul-katt requested a review from elharo March 3, 2020 05:59

elharo added the kokoro:run Add this label to force Kokoro to re-run the tests. label Mar 3, 2020

kokoro-team removed the kokoro:run Add this label to force Kokoro to re-run the tests. label Mar 3, 2020

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oauth2_http/java/com/google/auth/oauth2/ServiceAccountCredentials.java Outdated Show resolved Hide resolved

feat: Add support for explicit java.security.Provider to ServiceAccou…

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…ntCredentials This enables the storage of service account credentials in external key storage such as remote KeyVaults or HSMs.

stian-svedenborg-gul-katt force-pushed the explicit-provider branch from 153f5e5 to 256ffef Compare March 7, 2020 07:52

stian-svedenborg-gul-katt requested a review from elharo March 7, 2020 07:53

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Add support for explicit java.security.Provider to ServiceAccountCred… #411

Add support for explicit java.security.Provider to ServiceAccountCred… #411

stian-svedenborg-gul-katt commented Mar 2, 2020

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stian-svedenborg-gul-katt commented Mar 19, 2020

Add support for explicit java.security.Provider to ServiceAccountCred… #411

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Add support for explicit java.security.Provider to ServiceAccountCred… #411

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