#include #include #include /* https://131002.net/siphash/siphash24.c */ /* SipHash reference C implementation Copyright (c) 2012-2016 Jean-Philippe Aumasson Copyright (c) 2012-2014 Daniel J. Bernstein To the extent possible under law, the author(s) have dedicated all copyright and related and neighboring rights to this software to the public domain worldwide. This software is distributed without any warranty. You should have received a copy of the CC0 Public Domain Dedication along with this software. If not, see . */ #include #include #include #include #include /* default: SipHash-2-4 */ #ifndef cROUNDS #define cROUNDS 2 #endif #ifndef dROUNDS #define dROUNDS 4 #endif #define ROTL(x, b) (uint64_t)(((x) << (b)) | ((x) >> (64 - (b)))) #define U32TO8_LE(p, v) \ (p)[0] = (uint8_t)((v)); \ (p)[1] = (uint8_t)((v) >> 8); \ (p)[2] = (uint8_t)((v) >> 16); \ (p)[3] = (uint8_t)((v) >> 24); #define U64TO8_LE(p, v) \ U32TO8_LE((p), (uint32_t)((v))); \ U32TO8_LE((p) + 4, (uint32_t)((v) >> 32)); #define U8TO64_LE(p) \ (((uint64_t)((p)[0])) | ((uint64_t)((p)[1]) << 8) | \ ((uint64_t)((p)[2]) << 16) | ((uint64_t)((p)[3]) << 24) | \ ((uint64_t)((p)[4]) << 32) | ((uint64_t)((p)[5]) << 40) | \ ((uint64_t)((p)[6]) << 48) | ((uint64_t)((p)[7]) << 56)) #define SIPROUND \ do { \ v0 += v1; \ v1 = ROTL(v1, 13); \ v1 ^= v0; \ v0 = ROTL(v0, 32); \ v2 += v3; \ v3 = ROTL(v3, 16); \ v3 ^= v2; \ v0 += v3; \ v3 = ROTL(v3, 21); \ v3 ^= v0; \ v2 += v1; \ v1 = ROTL(v1, 17); \ v1 ^= v2; \ v2 = ROTL(v2, 32); \ } while (0) #ifdef DEBUG #define TRACE \ do { \ printf("(%3zu) v0 %016"PRIx64"\n", inlen, v0); \ printf("(%3zu) v1 %016"PRIx64"\n", inlen, v1); \ printf("(%3zu) v2 %016"PRIx64"\n", inlen, v2); \ printf("(%3zu) v3 %016"PRIx64"\n", inlen, v3); \ } while (0) #else #define TRACE #endif int siphash(const uint8_t *in, const size_t inlen, const uint8_t *k, uint8_t *out, const size_t outlen) { assert((outlen == 8) || (outlen == 16)); uint64_t v0 = UINT64_C(0x736f6d6570736575); uint64_t v1 = UINT64_C(0x646f72616e646f6d); uint64_t v2 = UINT64_C(0x6c7967656e657261); uint64_t v3 = UINT64_C(0x7465646279746573); uint64_t k0 = U8TO64_LE(k); uint64_t k1 = U8TO64_LE(k + 8); uint64_t m; int i; const uint8_t *end = in + inlen - (inlen % sizeof(uint64_t)); const int left = inlen & 7; uint64_t b = ((uint64_t)inlen) << 56; v3 ^= k1; v2 ^= k0; v1 ^= k1; v0 ^= k0; if (outlen == 16) v1 ^= 0xee; for (; in != end; in += 8) { m = U8TO64_LE(in); v3 ^= m; TRACE; for (i = 0; i < cROUNDS; ++i) SIPROUND; v0 ^= m; } switch (left) { case 7: b |= ((uint64_t)in[6]) << 48; case 6: b |= ((uint64_t)in[5]) << 40; case 5: b |= ((uint64_t)in[4]) << 32; case 4: b |= ((uint64_t)in[3]) << 24; case 3: b |= ((uint64_t)in[2]) << 16; case 2: b |= ((uint64_t)in[1]) << 8; case 1: b |= ((uint64_t)in[0]); break; case 0: break; } v3 ^= b; TRACE; for (i = 0; i < cROUNDS; ++i) SIPROUND; v0 ^= b; if (outlen == 16) v2 ^= 0xee; else v2 ^= 0xff; TRACE; for (i = 0; i < dROUNDS; ++i) SIPROUND; b = v0 ^ v1 ^ v2 ^ v3; U64TO8_LE(out, b); if (outlen == 8) return 0; v1 ^= 0xdd; TRACE; for (i = 0; i < dROUNDS; ++i) SIPROUND; b = v0 ^ v1 ^ v2 ^ v3; U64TO8_LE(out + 8, b); return 0; } /* SipHash-2-4 output with k = 00 01 02 ... and in = (empty string) in = 00 (1 byte) in = 00 01 (2 bytes) in = 00 01 02 (3 bytes) ... in = 00 01 02 ... 3e (63 bytes) */ mio_uint8_t vectors[64][8] = { { 0x31, 0x0e, 0x0e, 0xdd, 0x47, 0xdb, 0x6f, 0x72, }, { 0xfd, 0x67, 0xdc, 0x93, 0xc5, 0x39, 0xf8, 0x74, }, { 0x5a, 0x4f, 0xa9, 0xd9, 0x09, 0x80, 0x6c, 0x0d, }, { 0x2d, 0x7e, 0xfb, 0xd7, 0x96, 0x66, 0x67, 0x85, }, { 0xb7, 0x87, 0x71, 0x27, 0xe0, 0x94, 0x27, 0xcf, }, { 0x8d, 0xa6, 0x99, 0xcd, 0x64, 0x55, 0x76, 0x18, }, { 0xce, 0xe3, 0xfe, 0x58, 0x6e, 0x46, 0xc9, 0xcb, }, { 0x37, 0xd1, 0x01, 0x8b, 0xf5, 0x00, 0x02, 0xab, }, { 0x62, 0x24, 0x93, 0x9a, 0x79, 0xf5, 0xf5, 0x93, }, { 0xb0, 0xe4, 0xa9, 0x0b, 0xdf, 0x82, 0x00, 0x9e, }, { 0xf3, 0xb9, 0xdd, 0x94, 0xc5, 0xbb, 0x5d, 0x7a, }, { 0xa7, 0xad, 0x6b, 0x22, 0x46, 0x2f, 0xb3, 0xf4, }, { 0xfb, 0xe5, 0x0e, 0x86, 0xbc, 0x8f, 0x1e, 0x75, }, { 0x90, 0x3d, 0x84, 0xc0, 0x27, 0x56, 0xea, 0x14, }, { 0xee, 0xf2, 0x7a, 0x8e, 0x90, 0xca, 0x23, 0xf7, }, { 0xe5, 0x45, 0xbe, 0x49, 0x61, 0xca, 0x29, 0xa1, }, { 0xdb, 0x9b, 0xc2, 0x57, 0x7f, 0xcc, 0x2a, 0x3f, }, { 0x94, 0x47, 0xbe, 0x2c, 0xf5, 0xe9, 0x9a, 0x69, }, { 0x9c, 0xd3, 0x8d, 0x96, 0xf0, 0xb3, 0xc1, 0x4b, }, { 0xbd, 0x61, 0x79, 0xa7, 0x1d, 0xc9, 0x6d, 0xbb, }, { 0x98, 0xee, 0xa2, 0x1a, 0xf2, 0x5c, 0xd6, 0xbe, }, { 0xc7, 0x67, 0x3b, 0x2e, 0xb0, 0xcb, 0xf2, 0xd0, }, { 0x88, 0x3e, 0xa3, 0xe3, 0x95, 0x67, 0x53, 0x93, }, { 0xc8, 0xce, 0x5c, 0xcd, 0x8c, 0x03, 0x0c, 0xa8, }, { 0x94, 0xaf, 0x49, 0xf6, 0xc6, 0x50, 0xad, 0xb8, }, { 0xea, 0xb8, 0x85, 0x8a, 0xde, 0x92, 0xe1, 0xbc, }, { 0xf3, 0x15, 0xbb, 0x5b, 0xb8, 0x35, 0xd8, 0x17, }, { 0xad, 0xcf, 0x6b, 0x07, 0x63, 0x61, 0x2e, 0x2f, }, { 0xa5, 0xc9, 0x1d, 0xa7, 0xac, 0xaa, 0x4d, 0xde, }, { 0x71, 0x65, 0x95, 0x87, 0x66, 0x50, 0xa2, 0xa6, }, { 0x28, 0xef, 0x49, 0x5c, 0x53, 0xa3, 0x87, 0xad, }, { 0x42, 0xc3, 0x41, 0xd8, 0xfa, 0x92, 0xd8, 0x32, }, { 0xce, 0x7c, 0xf2, 0x72, 0x2f, 0x51, 0x27, 0x71, }, { 0xe3, 0x78, 0x59, 0xf9, 0x46, 0x23, 0xf3, 0xa7, }, { 0x38, 0x12, 0x05, 0xbb, 0x1a, 0xb0, 0xe0, 0x12, }, { 0xae, 0x97, 0xa1, 0x0f, 0xd4, 0x34, 0xe0, 0x15, }, { 0xb4, 0xa3, 0x15, 0x08, 0xbe, 0xff, 0x4d, 0x31, }, { 0x81, 0x39, 0x62, 0x29, 0xf0, 0x90, 0x79, 0x02, }, { 0x4d, 0x0c, 0xf4, 0x9e, 0xe5, 0xd4, 0xdc, 0xca, }, { 0x5c, 0x73, 0x33, 0x6a, 0x76, 0xd8, 0xbf, 0x9a, }, { 0xd0, 0xa7, 0x04, 0x53, 0x6b, 0xa9, 0x3e, 0x0e, }, { 0x92, 0x59, 0x58, 0xfc, 0xd6, 0x42, 0x0c, 0xad, }, { 0xa9, 0x15, 0xc2, 0x9b, 0xc8, 0x06, 0x73, 0x18, }, { 0x95, 0x2b, 0x79, 0xf3, 0xbc, 0x0a, 0xa6, 0xd4, }, { 0xf2, 0x1d, 0xf2, 0xe4, 0x1d, 0x45, 0x35, 0xf9, }, { 0x87, 0x57, 0x75, 0x19, 0x04, 0x8f, 0x53, 0xa9, }, { 0x10, 0xa5, 0x6c, 0xf5, 0xdf, 0xcd, 0x9a, 0xdb, }, { 0xeb, 0x75, 0x09, 0x5c, 0xcd, 0x98, 0x6c, 0xd0, }, { 0x51, 0xa9, 0xcb, 0x9e, 0xcb, 0xa3, 0x12, 0xe6, }, { 0x96, 0xaf, 0xad, 0xfc, 0x2c, 0xe6, 0x66, 0xc7, }, { 0x72, 0xfe, 0x52, 0x97, 0x5a, 0x43, 0x64, 0xee, }, { 0x5a, 0x16, 0x45, 0xb2, 0x76, 0xd5, 0x92, 0xa1, }, { 0xb2, 0x74, 0xcb, 0x8e, 0xbf, 0x87, 0x87, 0x0a, }, { 0x6f, 0x9b, 0xb4, 0x20, 0x3d, 0xe7, 0xb3, 0x81, }, { 0xea, 0xec, 0xb2, 0xa3, 0x0b, 0x22, 0xa8, 0x7f, }, { 0x99, 0x24, 0xa4, 0x3c, 0xc1, 0x31, 0x57, 0x24, }, { 0xbd, 0x83, 0x8d, 0x3a, 0xaf, 0xbf, 0x8d, 0xb7, }, { 0x0b, 0x1a, 0x2a, 0x32, 0x65, 0xd5, 0x1a, 0xea, }, { 0x13, 0x50, 0x79, 0xa3, 0x23, 0x1c, 0xe6, 0x60, }, { 0x93, 0x2b, 0x28, 0x46, 0xe4, 0xd7, 0x06, 0x66, }, { 0xe1, 0x91, 0x5f, 0x5c, 0xb1, 0xec, 0xa4, 0x6c, }, { 0xf3, 0x25, 0x96, 0x5c, 0xa1, 0x6d, 0x62, 0x9f, }, { 0x57, 0x5f, 0xf2, 0x8e, 0x60, 0x38, 0x1b, 0xe5, }, { 0x72, 0x45, 0x06, 0xeb, 0x4c, 0x32, 0x8a, 0x95, } }; int test_vectors() { #define MAXLEN 64 mio_uint8_t in[MAXLEN], out[8], k[16]; int i; int ok = 1; for( i = 0; i < 16; ++i ) k[i] = i; for( i = 0; i < MAXLEN; ++i ) { in[i] = i; mio_sip_hash_24(k, in, i, out); // siphash(in, i, k, out, 8); if ( memcmp( out, vectors[i], 8 ) ) { printf( "test vector failed for %d bytes\n", i ); ok = 0; } } return ok; } int main() { if (test_vectors()) printf( "test vectors ok\n" ); return 0; }