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Added support for RSASSA-PSS algorithms (PS256, PS384, PS512) #132

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merged 2 commits into from
Apr 10, 2015

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Added support for RSASSA-PSS algorithms (PS256, PS384, PS512)

The JWT spec also mentions optional support for RSASSA-PSS using and MGF1. This is superior to PKCS #1 v1.5 (RS256, RS384, RS512) because it essentially uses a salt to randomize the padding instead of using a completely deterministic algorithm. No good attacks against PKCS #1 v1.5 padding currently exist, but PSS is recommended in new applications since it makes the signature even more random.

More info here: http://www.emc.com/emc-plus/rsa-labs/historical/raising-standard-rsa-signatures-rsa-pss.htm

Also added a test to cover our only uncovered line in jwt.api

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Coverage decreased (-3.29%) to 96.46% when pulling 085d28c on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

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Coverage Status

Coverage decreased (-3.29%) to 96.46% when pulling 085d28c on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

@coveralls
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Coverage Status

Coverage decreased (-3.29%) to 96.46% when pulling 085d28c on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

@coveralls
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Coverage Status

Coverage decreased (-3.29%) to 96.46% when pulling 085d28c on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

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Coverage Status

Coverage increased (+0.01%) to 99.76% when pulling b7bf3f5 on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

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Coverage Status

Coverage increased (+0.01%) to 99.76% when pulling 68d1f89 on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

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Coverage Status

Coverage increased (+0.01%) to 99.76% when pulling 68d1f89 on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

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jpadilla commented Apr 9, 2015

Oh snap, this is great! As far as I know none of the other libraries do implement these.

@mark-adams
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Most of the thanks goes to cryptography and OpenSSL. They did the hard parts.

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Coverage increased (+0.01%) to 99.76% when pulling 77e69ff on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

3 similar comments
@coveralls
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Coverage Status

Coverage increased (+0.01%) to 99.76% when pulling 77e69ff on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

@coveralls
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Coverage Status

Coverage increased (+0.01%) to 99.76% when pulling 77e69ff on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

@coveralls
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Coverage Status

Coverage increased (+0.01%) to 99.76% when pulling 77e69ff on mark-adams:add-rsa-pss-algorithms into 2f4c770 on jpadilla:master.

mark-adams added a commit that referenced this pull request Apr 10, 2015
Added support for RSASSA-PSS algorithms (PS256, PS384, PS512)
@mark-adams mark-adams merged commit 29f1ef9 into jpadilla:master Apr 10, 2015
@mark-adams mark-adams added this to the v1.1.0 milestone Apr 13, 2015
This was referenced Sep 21, 2016
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3 participants