hkdf

Pure Haskell HMAC-based KDF (docs.ppad.tech/hkdf).
git clone git://git.ppad.tech/hkdf.git
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CHANGELOG (670B)

      1 # Changelog
      2 
      3 - 0.3.2 (2026-01-11)
      4   * Bumps the ppad-sha{256,512} dependencies used in the test and benchmark
      5     suites.
      6 
      7 - 0.3.1 (2025-12-28)
      8   * Adds an 'llvm' build flag and tests with GHC 9.10.3.
      9 
     10 - 0.3.0 (2025-06-21)
     11   * The 'derive' function is now total, returning 'Nothing' when
     12     supplied with bad inputs.
     13 
     14 - 0.2.1 (2025-02-24)
     15   * Merely swaps out the base16 library used for the Wycheproof tests
     16     (in favour of ppad-base16).
     17 
     18 - 0.2.0 (2025-01-10)
     19   * API change, opting for "derive" in place of "hkdf" to work more
     20     smoothly with a import qualifier like "KDF".
     21 
     22 - 0.1.0 (2025-01-10)
     23   * Initial release, supporting a generic RFC5869 HKDF function.
     24 
     25