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CHANGELOG.md

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rbc_validator Changelog

1.0.0 (May 21, 2021)

Features

  • Added support for the following symmetric keys (ciphers):

    • AES-256-ECB
    • ChaCha20

  • Added support for the following public keys:

    • ECC Secp256r1

  • Added support for the following hash functions:

    • MD5
    • SHA1
    • SHA224
    • SHA256
    • SHA384
    • SHA512
    • SHA3-224
    • SHA3-256
    • SHA3-384
    • SHA3-512
    • SHAKE128
    • SHAKE256
    • KangarooTwelve

  • Added support for the following modes:

    • Direct: Pass in a known host seed and known client output to derive the client's seed
    • --random: Generate the seed and errors randomly. Useful for benchmarking that models uniformly random distributions.
    • --benchmark: Generate the seed and errors such that the errors are exactly halfway through a core's/rank's workload. Useful for benchmarking but you're short on time or want reproducibility.

  • Added support for both OpenMP and OpenMPI implementations

  • Added the following options:

    • --all: Enforces search to continue through an entire Hamming distance's search space even if a matching seed is found
    • --fixed: Only searches a given Hamming distance's search space (no more nor less)

  • Added the ability to choose between OpenSSL vs. a faster custom AES256 implementation using ALWAYS_EVP_AES. Defaults to the custom implementation

  • Added the ability to choose between EVP vs. low level OpenSSL implementation of MD5, SHA1, and SHA2 using ALWAYS_EVP_HASH. Defaults to the low level implementations.

  • Added the ability to choose between OpenSSL vs. XKCP implementations for SHA3 and SHAKE using ALWAYS_EVP_SHA3. Defaults to OpenSSL implementations. (Note: Testing has found that the OpenSSL tends to be faster than the generic64, SSSE3, and AVX XKCP compilations on Zen 2. AVX2 is about on par. AVX512 XKCP is significantly faster than OpenSSL on Xeon Skylake CPUs.)

  • Added the ability to manually select the architecture to build XKCP against between:

    • reference
    • reference32bits
    • compact
    • generic32
    • generc32lc
    • generic64
    • generic64lc
    • SSSE3
    • AVX
    • AVX2
    • AVX512

    Defaults to generic64 to maximize compatibility while balancing for basic optimizations.