RFR: 8331008: Implement JEP 478: Key Derivation Function API (Preview) [v56]

[Valerie Peng]

On Fri, 11 Oct 2024 17:57:18 GMT, Kevin Driver <kdriver at openjdk.org> wrote:

>> Introduce an API for Key Derivation Functions (KDFs), which are cryptographic algorithms for deriving additional keys from a secret key and other data. See [JEP 478](https://openjdk.org/jeps/478).
>> 
>> Work was begun in [another PR](https://github.com/openjdk/jdk/pull/18924).
>
> Kevin Driver has updated the pull request incrementally with one additional commit since the last revision:
> 
>   enable debug flag for exhaustive test @run

test/jdk/com/sun/crypto/provider/KDF/HKDFKnownAnswerTests.java line 93:

> 91:                          "202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f"
> 92:                          +
> 93:                          "404142434445464748494a4b4c4d4e4f",

The convention is to put the "+" at the end of line for compactness. You may have to put less characters each line in order to keep the line <= 80 chars.

Or, another alternative is to reduce the indentation, e.g.

>         add(new TestData("RFC 5869 Test Case 2", "HKDF-SHA256",
>             "000102030405060708090a0b0c0d0e0f101112131415161718191a1b1c1d1e1f" +
>             "202122232425262728292a2b2c2d2e2f303132333435363738393a3b3c3d3e3f" +
>             "404142434445464748494a4b4c4d4e4f",
>             "606162636465666768696a6b6c6d6e6f707172737475767778797a7b7c7d7e7f" +
>             "808182838485868788898a8b8c8d8e8f909192939495969798999a9b9c9d9e9f" +
>             "a0a1a2a3a4a5a6a7a8a9aaabacadaeaf",
>             "b0b1b2b3b4b5b6b7b8b9babbbcbdbebfc0c1c2c3c4c5c6c7c8c9cacbcccdcecf" +
>             "d0d1d2d3d4d5d6d7d8d9dadbdcdddedfe0e1e2e3e4e5e6e7e8e9eaebecedeeef" +
>             "f0f1f2f3f4f5f6f7f8f9fafbfcfdfeff",
>             82,
>             "06a6b88c5853361a06104c9ceb35b45cef760014904671014a193f40c15fc244",
>             "b11e398dc80327a1c8e7f78c596a49344f012eda2d4efad8a050cc4c19afa97c" +
>             "59045a99cac7827271cb41c65e590e09da3275600c2f09b8367793a9aca3db71" +
>             "cc30c58179ec3e87c14c01d5c1f3434f1d87"));
>

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

PR Review Comment: https://git.openjdk.org/jdk/pull/20301#discussion_r1800185280