package keccak import ( "bytes" "encoding/hex" "hash" "io" "testing" ) var tests = []struct { f func() hash.Hash name string text string hash string }{ { f: newKeccak256, name: "Keccak-256", hash: "c5d2460186f7233c927e7db2dcc703c0e500b653ca82273b7bfad8045d85a470", }, { f: newKeccak512, name: "Keccak-512", hash: "0eab42de4c3ceb9235fc91acffe746b29c29a8c366b7c60e4e67c466f36a4304c00fa9caf9d87976ba469bcbe06713b435f091ef2769fb160cdab33d3670680e", }, { f: New256, name: "SHA3-256", hash: "a7ffc6f8bf1ed76651c14756a061d662f580ff4de43b49fa82d80a4b80f8434a", }, { f: New512, name: "SHA3-512", hash: "a69f73cca23a9ac5c8b567dc185a756e97c982164fe25859e0d1dcc1475c80a615b2123af1f5f94c11e3e9402c3ac558f500199d95b6d3e301758586281dcd26", }, { f: New256, name: "SHA3-256", text: "The quick brown fox jumps over the lazy dog", hash: "69070dda01975c8c120c3aada1b282394e7f032fa9cf32f4cb2259a0897dfc04", }, } func TestHash(t *testing.T) { for _, tt := range tests { want, err := hex.DecodeString(tt.hash) if err != nil { t.Errorf("%s(%q): %s", tt.name, tt.text, err) continue } h := tt.f() io.WriteString(h, tt.text) got := h.Sum(nil) if !bytes.Equal(got, want) { t.Errorf("%s(%q) = %x, want %x", tt.name, tt.text, got, want) } } } func benchmark(b *testing.B, f func() hash.Hash, size int64) { var tmp [Size * 2]byte var msg [8192]byte b.SetBytes(size) h := f() for i := 0; i < b.N; i++ { h.Reset() h.Write(msg[:size]) h.Sum(tmp[:0]) } } // Benchmark the Keccak-f permutation function func Benchmark256_8(b *testing.B) { benchmark(b, New256, 8) } func Benchmark256_1k(b *testing.B) { benchmark(b, New256, 1024) } func Benchmark256_8k(b *testing.B) { benchmark(b, New256, 8192) } func Benchmark512_8(b *testing.B) { benchmark(b, New512, 8) } func Benchmark512_1k(b *testing.B) { benchmark(b, New512, 1024) } func Benchmark512_8k(b *testing.B) { benchmark(b, New512, 8192) }