RFR: 8343232: PKCS#12 KeyStore support for RFC 9879: Use of Password-Based Message Authentication Code 1 (PBMAC1) [v8]

[Weijun Wang]

On Wed, 24 Sep 2025 13:24:49 GMT, Weijun Wang <weijun at openjdk.org> wrote:

>> Mark Powers has updated the pull request incrementally with one additional commit since the last revision:
>> 
>>   fix behavior with keytool
>
> src/java.base/share/classes/sun/security/pkcs12/PKCS12KeyStore.java line 1493:
> 
>> 1491:                 if (!(kdfHmac.equals("HmacSHA512") ||
>> 1492:                         kdfHmac.equals("HmacSHA256"))) {
>> 1493:                     kdfHmac = pbmac1Hmac; // use value associated with keystore
> 
> `pbmac1Hmac` is probably null now. If you decide to reject other algorithms (which I don't find necessary), error out.

Why is `pbmac1Hmac` necessary? Do we want to support writing with different PRF and HMAC?

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PR Review Comment: https://git.openjdk.org/jdk/pull/24429#discussion_r2376426464