On Thu, 15 Aug 2024 22:24:18 GMT, Valerie Peng <[email protected]> wrote:
>> Kevin Driver has updated the pull request incrementally with one additional
>> commit since the last revision:
>>
>> addressed several review comments, namely: - renaming the getParameters
>> method - renaming the AlgorithmParameterSpec object - address some javadoc
>> exception messages - add some information to KDF class private constructor
>> javadocs - other general cleanup
>
> src/java.base/share/classes/com/sun/crypto/provider/HkdfKeyDerivation.java
> line 300:
>
>> 298: }
>> 299: Mac hmacObj = Mac.getInstance(hmacAlgName);
>> 300: hmacObj.init(new SecretKeySpec(salt, "HKDF-Salt"));
>
> Why use "HKDF-Salt" as key algorithm name? This is just internal key for the
> Hmac object and maybe it's safer to just use the `hmacAlgName` as the key
> algorithm? The key algorithm does not affect the Hmac operation anyway.
@wangweij felt this was advantageous.
> src/java.base/share/classes/com/sun/crypto/provider/HkdfKeyDerivation.java
> line 328:
>
>> 326: *
>> 327: * @throws InvalidKeyException
>> 328: * if an invalid key was provided through the {@code
>> HkdfParameterSpec}
>
> Clarify "key" with "{@code prk}" and get rid of the trailing description.
I think the more verbose version is clearer.
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PR Review Comment: https://git.openjdk.org/jdk/pull/20301#discussion_r1720238725
PR Review Comment: https://git.openjdk.org/jdk/pull/20301#discussion_r1720241013
