An implementation of Keccak derived functions specified in FIPS-202, SP800-185 and KangarooTwelve.
The Keccak-f[1600] permutation is fully unrolled; it's nearly as fast as the Keccak team's optimized permutation.
In your Cargo.toml specify what features (hash functions, you are intending to use). Available options are: cshake, fips202, k12, keccak, kmac, parallel_hash, sha3, shake, sp800, tuple_hash.
[dependencies] tiny-keccak = { version = "2.0", features = ["sha3"] }use tiny_keccak::Sha3; fn main() { let mut sha3 = Sha3::v256(); let mut output = [0u8; 32]; let expected = b"\ \x64\x4b\xcc\x7e\x56\x43\x73\x04\x09\x99\xaa\xc8\x9e\x76\x22\xf3\ \xca\x71\xfb\xa1\xd9\x72\xfd\x94\xa3\x1c\x3b\xfb\xf2\x4e\x39\x38\ "; sha3.update(b"hello"); sha3.update(b" "); sha3.update(b"world"); sha3.finalize(&mut output); assert_eq!(expected, &output); }Benchmarked with rust-crypto sha3 on:
MacBook Pro (Retina, 15-inch, Mid 2015) 2,5 GHz Intel Core i7 16 GB 1600 MHz DDR3 Intel Iris Pro 1536 MB Benchmark code is available here
running 4 tests test rust_crypto_sha3_256_input_32_bytes ... bench: 677 ns/iter (+/- 113) = 47 MB/s test rust_crypto_sha3_256_input_4096_bytes ... bench: 17,619 ns/iter (+/- 4,174) = 232 MB/s test tiny_keccak_sha3_256_input_32_bytes ... bench: 569 ns/iter (+/- 204) = 56 MB/s test tiny_keccak_sha3_256_input_4096_bytes ... bench: 17,185 ns/iter (+/- 4,575) = 238 MB/s