hkdf

Pure Haskell HMAC-based KDF (docs.ppad.tech/hkdf).
git clone git://git.ppad.tech/hkdf.git
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CHANGELOG (481B)

      1 # Changelog
      2 
      3 - 0.3.0 (2025-06-21)
      4   * The 'derive' function is now total, returning 'Nothing' when
      5     supplied with bad inputs.
      6 
      7 - 0.2.1 (2025-02-24)
      8   * Merely swaps out the base16 library used for the Wycheproof tests
      9     (in favour of ppad-base16).
     10 
     11 - 0.2.0 (2025-01-10)
     12   * API change, opting for "derive" in place of "hkdf" to work more
     13     smoothly with a import qualifier like "KDF".
     14 
     15 - 0.1.0 (2025-01-10)
     16   * Initial release, supporting a generic RFC5869 HKDF function.
     17 
     18