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Diffstat (limited to 'source4/heimdal/lib/hcrypto/sha512.c')
| -rw-r--r-- | source4/heimdal/lib/hcrypto/sha512.c | 274 |
1 files changed, 274 insertions, 0 deletions
diff --git a/source4/heimdal/lib/hcrypto/sha512.c b/source4/heimdal/lib/hcrypto/sha512.c new file mode 100644 index 0000000000..18447b6c67 --- /dev/null +++ b/source4/heimdal/lib/hcrypto/sha512.c @@ -0,0 +1,274 @@ +/* + * Copyright (c) 2006 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * 3. Neither the name of the Institute nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include "config.h" + +#include "hash.h" +#include "sha.h" + +#define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z))) +#define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) + +#define ROTR(x,n) (((x)>>(n)) | ((x) << (64 - (n)))) + +#define Sigma0(x) (ROTR(x,28) ^ ROTR(x,34) ^ ROTR(x,39)) +#define Sigma1(x) (ROTR(x,14) ^ ROTR(x,18) ^ ROTR(x,41)) +#define sigma0(x) (ROTR(x,1) ^ ROTR(x,8) ^ ((x)>>7)) +#define sigma1(x) (ROTR(x,19) ^ ROTR(x,61) ^ ((x)>>6)) + +#define A m->counter[0] +#define B m->counter[1] +#define C m->counter[2] +#define D m->counter[3] +#define E m->counter[4] +#define F m->counter[5] +#define G m->counter[6] +#define H m->counter[7] + +static const uint64_t constant_512[80] = { + 0x428a2f98d728ae22, 0x7137449123ef65cd, 0xb5c0fbcfec4d3b2f, 0xe9b5dba58189dbbc, + 0x3956c25bf348b538, 0x59f111f1b605d019, 0x923f82a4af194f9b, 0xab1c5ed5da6d8118, + 0xd807aa98a3030242, 0x12835b0145706fbe, 0x243185be4ee4b28c, 0x550c7dc3d5ffb4e2, + 0x72be5d74f27b896f, 0x80deb1fe3b1696b1, 0x9bdc06a725c71235, 0xc19bf174cf692694, + 0xe49b69c19ef14ad2, 0xefbe4786384f25e3, 0x0fc19dc68b8cd5b5, 0x240ca1cc77ac9c65, + 0x2de92c6f592b0275, 0x4a7484aa6ea6e483, 0x5cb0a9dcbd41fbd4, 0x76f988da831153b5, + 0x983e5152ee66dfab, 0xa831c66d2db43210, 0xb00327c898fb213f, 0xbf597fc7beef0ee4, + 0xc6e00bf33da88fc2, 0xd5a79147930aa725, 0x06ca6351e003826f, 0x142929670a0e6e70, + 0x27b70a8546d22ffc, 0x2e1b21385c26c926, 0x4d2c6dfc5ac42aed, 0x53380d139d95b3df, + 0x650a73548baf63de, 0x766a0abb3c77b2a8, 0x81c2c92e47edaee6, 0x92722c851482353b, + 0xa2bfe8a14cf10364, 0xa81a664bbc423001, 0xc24b8b70d0f89791, 0xc76c51a30654be30, + 0xd192e819d6ef5218, 0xd69906245565a910, 0xf40e35855771202a, 0x106aa07032bbd1b8, + 0x19a4c116b8d2d0c8, 0x1e376c085141ab53, 0x2748774cdf8eeb99, 0x34b0bcb5e19b48a8, + 0x391c0cb3c5c95a63, 0x4ed8aa4ae3418acb, 0x5b9cca4f7763e373, 0x682e6ff3d6b2b8a3, + 0x748f82ee5defb2fc, 0x78a5636f43172f60, 0x84c87814a1f0ab72, 0x8cc702081a6439ec, + 0x90befffa23631e28, 0xa4506cebde82bde9, 0xbef9a3f7b2c67915, 0xc67178f2e372532b, + 0xca273eceea26619c, 0xd186b8c721c0c207, 0xeada7dd6cde0eb1e, 0xf57d4f7fee6ed178, + 0x06f067aa72176fba, 0x0a637dc5a2c898a6, 0x113f9804bef90dae, 0x1b710b35131c471b, + 0x28db77f523047d84, 0x32caab7b40c72493, 0x3c9ebe0a15c9bebc, 0x431d67c49c100d4c, + 0x4cc5d4becb3e42b6, 0x597f299cfc657e2a, 0x5fcb6fab3ad6faec, 0x6c44198c4a475817 +}; + +void +SHA512_Init (SHA512_CTX *m) +{ + m->sz[0] = 0; + m->sz[1] = 0; + A = 0x6a09e667f3bcc908; + B = 0xbb67ae8584caa73b; + C = 0x3c6ef372fe94f82b; + D = 0xa54ff53a5f1d36f1; + E = 0x510e527fade682d1; + F = 0x9b05688c2b3e6c1f; + G = 0x1f83d9abfb41bd6b; + H = 0x5be0cd19137e2179; +} + +static void +calc (SHA512_CTX *m, uint64_t *in) +{ + uint64_t AA, BB, CC, DD, EE, FF, GG, HH; + uint64_t data[80]; + int i; + + AA = A; + BB = B; + CC = C; + DD = D; + EE = E; + FF = F; + GG = G; + HH = H; + + for (i = 0; i < 16; ++i) + data[i] = in[i]; + for (i = 16; i < 80; ++i) + data[i] = sigma1(data[i-2]) + data[i-7] + + sigma0(data[i-15]) + data[i - 16]; + + for (i = 0; i < 80; i++) { + uint64_t T1, T2; + + T1 = HH + Sigma1(EE) + Ch(EE, FF, GG) + constant_512[i] + data[i]; + T2 = Sigma0(AA) + Maj(AA,BB,CC); + + HH = GG; + GG = FF; + FF = EE; + EE = DD + T1; + DD = CC; + CC = BB; + BB = AA; + AA = T1 + T2; + } + + A += AA; + B += BB; + C += CC; + D += DD; + E += EE; + F += FF; + G += GG; + H += HH; +} + +/* + * From `Performance analysis of MD5' by Joseph D. Touch <touch@isi.edu> + */ + +#if !defined(WORDS_BIGENDIAN) || defined(_CRAY) +static inline uint64_t +swap_uint64_t (uint64_t t) +{ + uint64_t temp; + + temp = cshift64(t, 32); + temp = ((temp & 0xff00ff00ff00ff00) >> 8) | + ((temp & 0x00ff00ff00ff00ff) << 8); + return ((temp & 0xffff0000ffff0000) >> 16) | + ((temp & 0x0000ffff0000ffff) << 16); +} +#endif + +struct x64{ + uint64_t a:64; + uint64_t b:64; +}; + +void +SHA512_Update (SHA512_CTX *m, const void *v, size_t len) +{ + const unsigned char *p = v; + size_t old_sz = m->sz[0]; + size_t offset; + + m->sz[0] += len * 8; + if (m->sz[0] < old_sz) + ++m->sz[1]; + offset = (old_sz / 8) % 128; + while(len > 0){ + size_t l = min(len, 128 - offset); + memcpy(m->save + offset, p, l); + offset += l; + p += l; + len -= l; + if(offset == 128){ +#if !defined(WORDS_BIGENDIAN) || defined(_CRAY) + int i; + uint64_t current[16]; + struct x64 *us = (struct x64*)m->save; + for(i = 0; i < 8; i++){ + current[2*i+0] = swap_uint64_t(us[i].a); + current[2*i+1] = swap_uint64_t(us[i].b); + } + calc(m, current); +#else + calc(m, (uint64_t*)m->save); +#endif + offset = 0; + } + } +} + +void +SHA512_Final (void *res, SHA512_CTX *m) +{ + unsigned char zeros[128 + 16]; + unsigned offset = (m->sz[0] / 8) % 128; + unsigned int dstart = (240 - offset - 1) % 128 + 1; + + *zeros = 0x80; + memset (zeros + 1, 0, sizeof(zeros) - 1); + zeros[dstart+15] = (m->sz[0] >> 0) & 0xff; + zeros[dstart+14] = (m->sz[0] >> 8) & 0xff; + zeros[dstart+13] = (m->sz[0] >> 16) & 0xff; + zeros[dstart+12] = (m->sz[0] >> 24) & 0xff; + zeros[dstart+11] = (m->sz[0] >> 32) & 0xff; + zeros[dstart+10] = (m->sz[0] >> 40) & 0xff; + zeros[dstart+9] = (m->sz[0] >> 48) & 0xff; + zeros[dstart+8] = (m->sz[0] >> 56) & 0xff; + + zeros[dstart+7] = (m->sz[1] >> 0) & 0xff; + zeros[dstart+6] = (m->sz[1] >> 8) & 0xff; + zeros[dstart+5] = (m->sz[1] >> 16) & 0xff; + zeros[dstart+4] = (m->sz[1] >> 24) & 0xff; + zeros[dstart+3] = (m->sz[1] >> 32) & 0xff; + zeros[dstart+2] = (m->sz[1] >> 40) & 0xff; + zeros[dstart+1] = (m->sz[1] >> 48) & 0xff; + zeros[dstart+0] = (m->sz[1] >> 56) & 0xff; + SHA512_Update (m, zeros, dstart + 16); + { + int i; + unsigned char *r = (unsigned char*)res; + + for (i = 0; i < 8; ++i) { + r[8*i+7] = m->counter[i] & 0xFF; + r[8*i+6] = (m->counter[i] >> 8) & 0xFF; + r[8*i+5] = (m->counter[i] >> 16) & 0xFF; + r[8*i+4] = (m->counter[i] >> 24) & 0xFF; + r[8*i+3] = (m->counter[i] >> 32) & 0XFF; + r[8*i+2] = (m->counter[i] >> 40) & 0xFF; + r[8*i+1] = (m->counter[i] >> 48) & 0xFF; + r[8*i] = (m->counter[i] >> 56) & 0xFF; + } + } +} + +void +SHA384_Init(SHA384_CTX *m) +{ + m->sz[0] = 0; + m->sz[1] = 0; + A = 0xcbbb9d5dc1059ed8; + B = 0x629a292a367cd507; + C = 0x9159015a3070dd17; + D = 0x152fecd8f70e5939; + E = 0x67332667ffc00b31; + F = 0x8eb44a8768581511; + G = 0xdb0c2e0d64f98fa7; + H = 0x47b5481dbefa4fa4; +} + +void +SHA384_Update (SHA384_CTX *m, const void *v, size_t len) +{ + SHA512_Update(m, v, len); +} + +void +SHA384_Final (void *res, SHA384_CTX *m) +{ + unsigned char data[SHA512_DIGEST_LENGTH]; + SHA512_Final(data, m); + memcpy(res, data, SHA384_DIGEST_LENGTH); +} + |