libdecaf

# Changelog

## 2.1.1 (2022-08-31)

* Fixes
  * Include `Makefile` in hex.pm package so it works correctly with erlang.mk

## 2.1.0 (2022-08-28)

* Fixes
  * Security fix for [Misuse of public apis can result in private key exposure #13](https://github.com/potatosalad/erlang-libdecaf/issues/13) (see [report here](https://github.com/MystenLabs/ed25519-unsafe-libs)).
* Library Support
  * Legacy KECCAK SHA-3 (thanks to [@ukazap](https://github.com/ukazap))
    * `libdecaf_keccak_sha3:hash/2`, `libdecaf_keccak_sha3:hash/3`
    * `libdecaf_keccak_sha3:init/1`
    * `libdecaf_keccak_sha3:update/2`
    * `libdecaf_keccak_sha3:final/1`, `libdecaf_keccak_sha3:final/2`
* Enhancements
  * New Keypair API for Ed25519 and Ed448 operations (see [#13](https://github.com/potatosalad/erlang-libdecaf/issues/13)).
  * [Add legacy Keccak support #15](https://github.com/potatosalad/erlang-libdecaf/pull/15) (see also [#12](https://github.com/potatosalad/erlang-libdecaf/issues/12).)
  * Upstream update to [`ed448goldilocks` version `features-20220828`](https://github.com/potatosalad/ed448goldilocks/tree/features-20220828) (vendored as part of `libdecaf` app).

## 2.0.0 (2022-01-25)

* Fixes
  * Remove `xnif_slice` related code and refactor to use regular timeslice reduction bumping (see [#7](https://github.com/potatosalad/erlang-libdecaf/issues/7)).
  * Compilation problems on macOS and Erlang/OTP 23+ compatibility.
* Enhancements
  * Upstream update to [`ed448goldilocks` version `features-20220121`](https://github.com/potatosalad/ed448goldilocks/tree/features-20220121) (now vendored as part of `libdecaf` app).
  * Added tests for timeslice checking with large input and/or large output.
  * Switch from Travis CI to GitHub Actions.
  * Relicense library under MIT license.

## 1.0.0 (2018-11-30)

* Upstream update to [`ed448goldilocks` version 1.0](https://sourceforge.net/p/ed448goldilocks/code/ci/v1.0/tree/)
* Library Support
  * SPONGERNG
    * `libdecaf_spongerng:init_from_buffer/2`
    * `libdecaf_spongerng:init_from_file/3`
    * `libdecaf_spongerng:init_from_dev_urandom/0`
    * `libdecaf_spongerng:next/2`
    * `libdecaf_spongerng:stir/2`
  * Verious improvements to the build system (more appropriate usage of dirty schedulers and time slices).
  * Added Ed25519 to X25519 and Ed448 to X448 conversion functions.

## 0.0.4 (2016-09-02)

* Upstream version [features-20160902](https://github.com/potatosalad/ed448goldilocks/tree/features-20160902) which adds support for Ed25519ctx according to [draft 08 of EdDSA](https://tools.ietf.org/html/draft-irtf-cfrg-eddsa-08#section-5.1).

* Library Support
  * EdDSA
    * `libdecaf_curve25519:ed25519ctx_sign/3`
    * `libdecaf_curve25519:ed25519ctx_verify/4`

## 0.0.3 (2016-03-10)

* Upstream version [features-20160629](https://github.com/potatosalad/ed448goldilocks/tree/features-20160629)

* Fixes
  * Support for modern versions of FreeBSD, NetBSD, and DragonflyBSD.

## 0.0.2 (2016-03-10)

* Upstream version [f29b338f3788f052441478bb03b5d9e6fdd3eb28](https://github.com/potatosalad/ed448goldilocks/tree/f29b338f3788f052441478bb03b5d9e6fdd3eb28)

* Library Support
  * ECDH
    * `libdecaf:x25519_generate_key/1`
    * `libdecaf:x25519/2`
    * `libdecaf:x448_generate_key/1`
    * `libdecaf:x448/2`
  * EdDSA
    * `libdecaf:ed25519_derive_public_key/1`
    * `libdecaf:ed25519_sign/4`
    * `libdecaf:ed25519_sign_prehash/3`
    * `libdecaf:ed25519_verify/4`
    * `libdecaf:ed25519_verify_prehash/3`
    * `libdecaf:ed448_derive_public_key/1`
    * `libdecaf:ed448_sign/5`
    * `libdecaf:ed448_sign_prehash/4`
    * `libdecaf:ed448_verify/5`
    * `libdecaf:ed448_verify_prehash/4`

* Fixes
  * Include `stdint.h` to hopefully fix build issues on Linux.

## 0.0.1 (2016-03-01)

* Initial Release

* Publish to [hex.pm](https://hex.pm/packages/libdecaf).

* Library Support
  * ECDH
    * `libdecaf:decaf_x25519_base_scalarmul/1`
    * `libdecaf:decaf_x25519_direct_scalarmul/2`
    * `libdecaf:decaf_x448_base_scalarmul/1`
    * `libdecaf:decaf_x448_direct_scalarmul/2`
  * EdDSA
    * `libdecaf:decaf_255_eddsa_derive_public_key/1`
    * `libdecaf:decaf_255_eddsa_sign/4`
    * `libdecaf:decaf_255_eddsa_verify/4`
    * `libdecaf:decaf_448_eddsa_derive_public_key/1`
    * `libdecaf:decaf_448_eddsa_sign/5`
    * `libdecaf:decaf_448_eddsa_verify/5`
  * SHA-2
    * `libdecaf:sha2_512/2`
    * Streaming support
      * `libdecaf:sha2_512_init/0`, `libdecaf:sha2_512_update/2`, `libdecaf:sha2_512_final/2`
  * SHA-3
    * `libdecaf:sha3_224/1`
    * `libdecaf:sha3_256/1`
    * `libdecaf:sha3_384/1`
    * `libdecaf:sha3_512/1`
    * `libdecaf:shake128/2`
    * `libdecaf:shake256/2`
    * Streaming support
      * `libdecaf:sha3_224_init/0`, `libdecaf:sha3_224_update/2`, `libdecaf:sha3_224_final/1`
      * `libdecaf:sha3_256_init/0`, `libdecaf:sha3_256_update/2`, `libdecaf:sha3_256_final/1`
      * `libdecaf:sha3_384_init/0`, `libdecaf:sha3_384_update/2`, `libdecaf:sha3_384_final/1`
      * `libdecaf:sha3_512_init/0`, `libdecaf:sha3_512_update/2`, `libdecaf:sha3_512_final/1`
      * `libdecaf:shake128_init/0`, `libdecaf:shake128_update/2`, `libdecaf:shake128_final/2`
      * `libdecaf:shake256_init/0`, `libdecaf:shake256_update/2`, `libdecaf:shake256_final/2`

* Basic Tests based on the [draft-irtf-cfrg-eddsa](https://tools.ietf.org/html/draft-irtf-cfrg-eddsa), [FIPS 180-4](http://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf), [FIPS 202](http://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.202.pdf), and [RFC 7748](https://tools.ietf.org/html/rfc7748) test vectors.