Changelog

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All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

0.1.0 - 2026-07-14

Added

  • ExFPE facade over the FFX family, with new/2,3, encrypt/3, decrypt/3 and raising ! variants.
  • FF1 mode (SP 800-38Gr1 2pd), the default and only NIST-approved mode. Variable-length tweak; verified against the official NIST sample vectors.
  • FF3-1 mode (SP 800-38G Rev. 1 first draft), fixed 7-byte tweak. Provided for interoperability only — NIST removed the FF3 family and it is not approved.
  • Alphabets: a built-in radix 2–36 alphabet (0-9a-z, case-insensitive) and custom Unicode alphabets up to radix 65535, plus a symbol-less raw integer mode ({:raw_only, radix} with ExFPE.raw_encrypt/4/raw_decrypt/4).
  • use ExFPE for keeping a context under a supervision tree
  • Structured {:error, reason} tuples and an exception hierarchy (ExFPE.ArgumentError, ExFPE.InputError, ExFPE.NotStartedError).