On Thu, 2 Dec 2021 21:31:52 GMT, Martin Balao <mba...@openjdk.org> wrote:

>> As described in JDK-8271566 [1], this patch proposal is intended to fix a 
>> problem that arises when using DSA keys that have a 256-bits (or larger) G 
>> parameter for signatures (either signing or verifying). There were some 
>> incorrect assumptions and hard-coded length values in the code before. 
>> Please note that, for example, the tuple (2048, 256) for DSA is valid 
>> according to FIPS PUB 186-4.
>> 
>> Beyond the specific issues in signatures, I decided to provide a broader 
>> solution and enable key parameter retrieval for other key types (EC, DH) 
>> when possible. This is, when the key is not sensitive. One thing that I 
>> should note here is that token keys (those that have the CKA_TOKEN attribute 
>> equal to 'true') are considered sensitive in this regard, at least by the 
>> NSS Software Token implementation. I don't have access to other vendor 
>> implementations but if there is any concern, we can adjust the constraint to 
>> NSS-only. However, I'm not sure which use-case would require to get private 
>> keys out of a real token, weakening its security. I'd be more conservative 
>> here and not query the values if not sure that it will succeed.
>> 
>> No regressions found in jdk/sun/security/pkcs11. A new test added: 
>> LargerDSAKey.
>> 
>> --
>> [1] - https://bugs.openjdk.java.net/browse/JDK-8271566
>
> Martin Balao has updated the pull request with a new target base due to a 
> merge or a rebase. The pull request now contains six commits:
> 
>  - 8271566: DSA signature length value is not accurate in P11Signature 
> (Webrev.02 based)
>  - Merge branch 'master' into JDK-8271566
>  - Revert 8271566: DSA signature length value is not accurate in P11Signature
>  - Revert P11Key static inner classes refactorings.
>  - P11Key static inner classes refactorings.
>  - 8271566: DSA signature length value is not accurate in P11Signature

test/jdk/TEST.groups line 202:

> 200: 
> 201: jdk_security1 = \
> 202:     sun/security/pkcs11

Please discard this, this is just for quick testing, it's not meant to be part 
of this change...

-------------

PR: https://git.openjdk.java.net/jdk/pull/4961

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