/* sha512.c - SHA384 and SHA512 hash functions * Copyright (C) 2003, 2008 Free Software Foundation, Inc. * * This file is part of Libgcrypt. * * Libgcrypt is free software; you can redistribute it and/or modify * it under the terms of the GNU Lesser general Public License as * published by the Free Software Foundation; either version 2.1 of * the License, or (at your option) any later version. * * Libgcrypt is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this program; if not, see <http://www.gnu.org/licenses/>. */ /* Test vectors from FIPS-180-2: * * "abc" * 384: * CB00753F 45A35E8B B5A03D69 9AC65007 272C32AB 0EDED163 * 1A8B605A 43FF5BED 8086072B A1E7CC23 58BAECA1 34C825A7 * 512: * DDAF35A1 93617ABA CC417349 AE204131 12E6FA4E 89A97EA2 0A9EEEE6 4B55D39A * 2192992A 274FC1A8 36BA3C23 A3FEEBBD 454D4423 643CE80E 2A9AC94F A54CA49F * * "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmnhijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu" * 384: * 09330C33 F71147E8 3D192FC7 82CD1B47 53111B17 3B3B05D2 * 2FA08086 E3B0F712 FCC7C71A 557E2DB9 66C3E9FA 91746039 * 512: * 8E959B75 DAE313DA 8CF4F728 14FC143F 8F7779C6 EB9F7FA1 7299AEAD B6889018 * 501D289E 4900F7E4 331B99DE C4B5433A C7D329EE B6DD2654 5E96E55B 874BE909 * * "a" x 1000000 * 384: * 9D0E1809 716474CB 086E834E 310A4A1C ED149E9C 00F24852 * 7972CEC5 704C2A5B 07B8B3DC 38ECC4EB AE97DDD8 7F3D8985 * 512: * E718483D 0CE76964 4E2E42C7 BC15B463 8E1F98B1 3B204428 5632A803 AFA973EB * DE0FF244 877EA60A 4CB0432C E577C31B EB009C5C 2C49AA2E 4EADB217 AD8CC09B */ #include <config.h> #include <string.h> #include "g10lib.h" #include "bithelp.h" #include "cipher.h" #include "hash-common.h" typedef struct { u64 h0, h1, h2, h3, h4, h5, h6, h7; u64 nblocks; byte buf[128]; int count; } SHA512_CONTEXT; static void sha512_init (void *context) { SHA512_CONTEXT *hd = context; hd->h0 = U64_C(0x6a09e667f3bcc908); hd->h1 = U64_C(0xbb67ae8584caa73b); hd->h2 = U64_C(0x3c6ef372fe94f82b); hd->h3 = U64_C(0xa54ff53a5f1d36f1); hd->h4 = U64_C(0x510e527fade682d1); hd->h5 = U64_C(0x9b05688c2b3e6c1f); hd->h6 = U64_C(0x1f83d9abfb41bd6b); hd->h7 = U64_C(0x5be0cd19137e2179); hd->nblocks = 0; hd->count = 0; } static void sha384_init (void *context) { SHA512_CONTEXT *hd = context; hd->h0 = U64_C(0xcbbb9d5dc1059ed8); hd->h1 = U64_C(0x629a292a367cd507); hd->h2 = U64_C(0x9159015a3070dd17); hd->h3 = U64_C(0x152fecd8f70e5939); hd->h4 = U64_C(0x67332667ffc00b31); hd->h5 = U64_C(0x8eb44a8768581511); hd->h6 = U64_C(0xdb0c2e0d64f98fa7); hd->h7 = U64_C(0x47b5481dbefa4fa4); hd->nblocks = 0; hd->count = 0; } /**************** * Transform the message W which consists of 16 64-bit-words */ static void transform (SHA512_CONTEXT *hd, const unsigned char *data) { u64 a, b, c, d, e, f, g, h; u64 w[80]; int t; static const u64 k[] = { U64_C(0x428a2f98d728ae22), U64_C(0x7137449123ef65cd), U64_C(0xb5c0fbcfec4d3b2f), U64_C(0xe9b5dba58189dbbc), U64_C(0x3956c25bf348b538), U64_C(0x59f111f1b605d019), U64_C(0x923f82a4af194f9b), U64_C(0xab1c5ed5da6d8118), U64_C(0xd807aa98a3030242), U64_C(0x12835b0145706fbe), U64_C(0x243185be4ee4b28c), U64_C(0x550c7dc3d5ffb4e2), U64_C(0x72be5d74f27b896f), U64_C(0x80deb1fe3b1696b1), U64_C(0x9bdc06a725c71235), U64_C(0xc19bf174cf692694), U64_C(0xe49b69c19ef14ad2), U64_C(0xefbe4786384f25e3), U64_C(0x0fc19dc68b8cd5b5), U64_C(0x240ca1cc77ac9c65), U64_C(0x2de92c6f592b0275), U64_C(0x4a7484aa6ea6e483), U64_C(0x5cb0a9dcbd41fbd4), U64_C(0x76f988da831153b5), U64_C(0x983e5152ee66dfab), U64_C(0xa831c66d2db43210), U64_C(0xb00327c898fb213f), U64_C(0xbf597fc7beef0ee4), U64_C(0xc6e00bf33da88fc2), U64_C(0xd5a79147930aa725), U64_C(0x06ca6351e003826f), U64_C(0x142929670a0e6e70), U64_C(0x27b70a8546d22ffc), U64_C(0x2e1b21385c26c926), U64_C(0x4d2c6dfc5ac42aed), U64_C(0x53380d139d95b3df), U64_C(0x650a73548baf63de), U64_C(0x766a0abb3c77b2a8), U64_C(0x81c2c92e47edaee6), U64_C(0x92722c851482353b), U64_C(0xa2bfe8a14cf10364), U64_C(0xa81a664bbc423001), U64_C(0xc24b8b70d0f89791), U64_C(0xc76c51a30654be30), U64_C(0xd192e819d6ef5218), U64_C(0xd69906245565a910), U64_C(0xf40e35855771202a), U64_C(0x106aa07032bbd1b8), U64_C(0x19a4c116b8d2d0c8), U64_C(0x1e376c085141ab53), U64_C(0x2748774cdf8eeb99), U64_C(0x34b0bcb5e19b48a8), U64_C(0x391c0cb3c5c95a63), U64_C(0x4ed8aa4ae3418acb), U64_C(0x5b9cca4f7763e373), U64_C(0x682e6ff3d6b2b8a3), U64_C(0x748f82ee5defb2fc), U64_C(0x78a5636f43172f60), U64_C(0x84c87814a1f0ab72), U64_C(0x8cc702081a6439ec), U64_C(0x90befffa23631e28), U64_C(0xa4506cebde82bde9), U64_C(0xbef9a3f7b2c67915), U64_C(0xc67178f2e372532b), U64_C(0xca273eceea26619c), U64_C(0xd186b8c721c0c207), U64_C(0xeada7dd6cde0eb1e), U64_C(0xf57d4f7fee6ed178), U64_C(0x06f067aa72176fba), U64_C(0x0a637dc5a2c898a6), U64_C(0x113f9804bef90dae), U64_C(0x1b710b35131c471b), U64_C(0x28db77f523047d84), U64_C(0x32caab7b40c72493), U64_C(0x3c9ebe0a15c9bebc), U64_C(0x431d67c49c100d4c), U64_C(0x4cc5d4becb3e42b6), U64_C(0x597f299cfc657e2a), U64_C(0x5fcb6fab3ad6faec), U64_C(0x6c44198c4a475817) }; /* get values from the chaining vars */ a = hd->h0; b = hd->h1; c = hd->h2; d = hd->h3; e = hd->h4; f = hd->h5; g = hd->h6; h = hd->h7; #ifdef WORDS_BIGENDIAN memcpy (w, data, 128); #else { int i; byte *p2; for (i = 0, p2 = (byte *) w; i < 16; i++, p2 += 8) { p2[7] = *data++; p2[6] = *data++; p2[5] = *data++; p2[4] = *data++; p2[3] = *data++; p2[2] = *data++; p2[1] = *data++; p2[0] = *data++; } } #endif #define ROTR(x,n) (((x)>>(n)) | ((x)<<(64-(n)))) #define Ch(x,y,z) (((x) & (y)) ^ ((~(x)) & (z))) #define Maj(x,y,z) (((x) & (y)) ^ ((x) & (z)) ^ ((y) & (z))) #define Sum0(x) (ROTR((x),28) ^ ROTR((x),34) ^ ROTR((x),39)) #define Sum1(x) (ROTR((x),14) ^ ROTR((x),18) ^ ROTR((x),41)) #define S0(x) (ROTR((x),1) ^ ROTR((x),8) ^ ((x)>>7)) #define S1(x) (ROTR((x),19) ^ ROTR((x),61) ^ ((x)>>6)) for (t = 16; t < 80; t++) w[t] = S1 (w[t - 2]) + w[t - 7] + S0 (w[t - 15]) + w[t - 16]; for (t = 0; t < 80; t++) { u64 t1, t2; t1 = h + Sum1 (e) + Ch (e, f, g) + k[t] + w[t]; t2 = Sum0 (a) + Maj (a, b, c); h = g; g = f; f = e; e = d + t1; d = c; c = b; b = a; a = t1 + t2; /* printf("t=%d a=%016llX b=%016llX c=%016llX d=%016llX " "e=%016llX f=%016llX g=%016llX h=%016llX\n",t,a,b,c,d,e,f,g,h); */ } /* update chaining vars */ hd->h0 += a; hd->h1 += b; hd->h2 += c; hd->h3 += d; hd->h4 += e; hd->h5 += f; hd->h6 += g; hd->h7 += h; } /* Update the message digest with the contents * of INBUF with length INLEN. */ static void sha512_write (void *context, const void *inbuf_arg, size_t inlen) { const unsigned char *inbuf = inbuf_arg; SHA512_CONTEXT *hd = context; if (hd->count == 128) { /* flush the buffer */ transform (hd, hd->buf); _gcry_burn_stack (768); hd->count = 0; hd->nblocks++; } if (!inbuf) return; if (hd->count) { for (; inlen && hd->count < 128; inlen--) hd->buf[hd->count++] = *inbuf++; sha512_write (context, NULL, 0); if (!inlen) return; } while (inlen >= 128) { transform (hd, inbuf); hd->count = 0; hd->nblocks++; inlen -= 128; inbuf += 128; } _gcry_burn_stack (768); for (; inlen && hd->count < 128; inlen--) hd->buf[hd->count++] = *inbuf++; } /* The routine final terminates the computation and * returns the digest. * The handle is prepared for a new cycle, but adding bytes to the * handle will the destroy the returned buffer. * Returns: 64 bytes representing the digest. When used for sha384, * we take the leftmost 48 of those bytes. */ static void sha512_final (void *context) { SHA512_CONTEXT *hd = context; u64 t, msb, lsb; byte *p; sha512_write (context, NULL, 0); /* flush */ ; t = hd->nblocks; /* multiply by 128 to make a byte count */ lsb = t << 7; msb = t >> 57; /* add the count */ t = lsb; if ((lsb += hd->count) < t) msb++; /* multiply by 8 to make a bit count */ t = lsb; lsb <<= 3; msb <<= 3; msb |= t >> 61; if (hd->count < 112) { /* enough room */ hd->buf[hd->count++] = 0x80; /* pad */ while (hd->count < 112) hd->buf[hd->count++] = 0; /* pad */ } else { /* need one extra block */ hd->buf[hd->count++] = 0x80; /* pad character */ while (hd->count < 128) hd->buf[hd->count++] = 0; sha512_write (context, NULL, 0); /* flush */ ; memset (hd->buf, 0, 112); /* fill next block with zeroes */ } /* append the 128 bit count */ hd->buf[112] = msb >> 56; hd->buf[113] = msb >> 48; hd->buf[114] = msb >> 40; hd->buf[115] = msb >> 32; hd->buf[116] = msb >> 24; hd->buf[117] = msb >> 16; hd->buf[118] = msb >> 8; hd->buf[119] = msb; hd->buf[120] = lsb >> 56; hd->buf[121] = lsb >> 48; hd->buf[122] = lsb >> 40; hd->buf[123] = lsb >> 32; hd->buf[124] = lsb >> 24; hd->buf[125] = lsb >> 16; hd->buf[126] = lsb >> 8; hd->buf[127] = lsb; transform (hd, hd->buf); _gcry_burn_stack (768); p = hd->buf; #ifdef WORDS_BIGENDIAN #define X(a) do { *(u64*)p = hd->h##a ; p += 8; } while (0) #else /* little endian */ #define X(a) do { *p++ = hd->h##a >> 56; *p++ = hd->h##a >> 48; \ *p++ = hd->h##a >> 40; *p++ = hd->h##a >> 32; \ *p++ = hd->h##a >> 24; *p++ = hd->h##a >> 16; \ *p++ = hd->h##a >> 8; *p++ = hd->h##a; } while (0) #endif X (0); X (1); X (2); X (3); X (4); X (5); /* Note that these last two chunks are included even for SHA384. We just ignore them. */ X (6); X (7); #undef X } static byte * sha512_read (void *context) { SHA512_CONTEXT *hd = (SHA512_CONTEXT *) context; return hd->buf; } /* Self-test section. */ static gpg_err_code_t selftests_sha384 (int extended, selftest_report_func_t report) { const char *what; const char *errtxt; what = "short string"; errtxt = _gcry_hash_selftest_check_one (GCRY_MD_SHA384, 0, "abc", 3, "\xcb\x00\x75\x3f\x45\xa3\x5e\x8b\xb5\xa0\x3d\x69\x9a\xc6\x50\x07" "\x27\x2c\x32\xab\x0e\xde\xd1\x63\x1a\x8b\x60\x5a\x43\xff\x5b\xed" "\x80\x86\x07\x2b\xa1\xe7\xcc\x23\x58\xba\xec\xa1\x34\xc8\x25\xa7", 48); if (errtxt) goto failed; if (extended) { what = "long string"; errtxt = _gcry_hash_selftest_check_one (GCRY_MD_SHA384, 0, "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", 112, "\x09\x33\x0C\x33\xF7\x11\x47\xE8\x3D\x19\x2F\xC7\x82\xCD\x1B\x47" "\x53\x11\x1B\x17\x3B\x3B\x05\xD2\x2F\xA0\x80\x86\xE3\xB0\xF7\x12" "\xFC\xC7\xC7\x1A\x55\x7E\x2D\xB9\x66\xC3\xE9\xFA\x91\x74\x60\x39", 48); if (errtxt) goto failed; what = "one million \"a\""; errtxt = _gcry_hash_selftest_check_one (GCRY_MD_SHA384, 1, NULL, 0, "\x9D\x0E\x18\x09\x71\x64\x74\xCB\x08\x6E\x83\x4E\x31\x0A\x4A\x1C" "\xED\x14\x9E\x9C\x00\xF2\x48\x52\x79\x72\xCE\xC5\x70\x4C\x2A\x5B" "\x07\xB8\xB3\xDC\x38\xEC\xC4\xEB\xAE\x97\xDD\xD8\x7F\x3D\x89\x85", 48); if (errtxt) goto failed; } return 0; /* Succeeded. */ failed: if (report) report ("digest", GCRY_MD_SHA384, what, errtxt); return GPG_ERR_SELFTEST_FAILED; } static gpg_err_code_t selftests_sha512 (int extended, selftest_report_func_t report) { const char *what; const char *errtxt; what = "short string"; errtxt = _gcry_hash_selftest_check_one (GCRY_MD_SHA512, 0, "abc", 3, "\xDD\xAF\x35\xA1\x93\x61\x7A\xBA\xCC\x41\x73\x49\xAE\x20\x41\x31" "\x12\xE6\xFA\x4E\x89\xA9\x7E\xA2\x0A\x9E\xEE\xE6\x4B\x55\xD3\x9A" "\x21\x92\x99\x2A\x27\x4F\xC1\xA8\x36\xBA\x3C\x23\xA3\xFE\xEB\xBD" "\x45\x4D\x44\x23\x64\x3C\xE8\x0E\x2A\x9A\xC9\x4F\xA5\x4C\xA4\x9F", 64); if (errtxt) goto failed; if (extended) { what = "long string"; errtxt = _gcry_hash_selftest_check_one (GCRY_MD_SHA512, 0, "abcdefghbcdefghicdefghijdefghijkefghijklfghijklmghijklmn" "hijklmnoijklmnopjklmnopqklmnopqrlmnopqrsmnopqrstnopqrstu", 112, "\x8E\x95\x9B\x75\xDA\xE3\x13\xDA\x8C\xF4\xF7\x28\x14\xFC\x14\x3F" "\x8F\x77\x79\xC6\xEB\x9F\x7F\xA1\x72\x99\xAE\xAD\xB6\x88\x90\x18" "\x50\x1D\x28\x9E\x49\x00\xF7\xE4\x33\x1B\x99\xDE\xC4\xB5\x43\x3A" "\xC7\xD3\x29\xEE\xB6\xDD\x26\x54\x5E\x96\xE5\x5B\x87\x4B\xE9\x09", 64); if (errtxt) goto failed; what = "one million \"a\""; errtxt = _gcry_hash_selftest_check_one (GCRY_MD_SHA512, 1, NULL, 0, "\xE7\x18\x48\x3D\x0C\xE7\x69\x64\x4E\x2E\x42\xC7\xBC\x15\xB4\x63" "\x8E\x1F\x98\xB1\x3B\x20\x44\x28\x56\x32\xA8\x03\xAF\xA9\x73\xEB" "\xDE\x0F\xF2\x44\x87\x7E\xA6\x0A\x4C\xB0\x43\x2C\xE5\x77\xC3\x1B" "\xEB\x00\x9C\x5C\x2C\x49\xAA\x2E\x4E\xAD\xB2\x17\xAD\x8C\xC0\x9B", 64); if (errtxt) goto failed; } return 0; /* Succeeded. */ failed: if (report) report ("digest", GCRY_MD_SHA512, what, errtxt); return GPG_ERR_SELFTEST_FAILED; } /* Run a full self-test for ALGO and return 0 on success. */ static gpg_err_code_t run_selftests (int algo, int extended, selftest_report_func_t report) { gpg_err_code_t ec; switch (algo) { case GCRY_MD_SHA384: ec = selftests_sha384 (extended, report); break; case GCRY_MD_SHA512: ec = selftests_sha512 (extended, report); break; default: ec = GPG_ERR_DIGEST_ALGO; break; } return ec; } static byte sha512_asn[] = /* Object ID is 2.16.840.1.101.3.4.2.3 */ { 0x30, 0x51, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x03, 0x05, 0x00, 0x04, 0x40 }; static gcry_md_oid_spec_t oid_spec_sha512[] = { { "2.16.840.1.101.3.4.2.3" }, /* PKCS#1 sha512WithRSAEncryption */ { "1.2.840.113549.1.1.13" }, { NULL } }; gcry_md_spec_t _gcry_digest_spec_sha512 = { "SHA512", sha512_asn, DIM (sha512_asn), oid_spec_sha512, 64, sha512_init, sha512_write, sha512_final, sha512_read, sizeof (SHA512_CONTEXT), }; md_extra_spec_t _gcry_digest_extraspec_sha512 = { run_selftests }; static byte sha384_asn[] = /* Object ID is 2.16.840.1.101.3.4.2.2 */ { 0x30, 0x41, 0x30, 0x0d, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x65, 0x03, 0x04, 0x02, 0x02, 0x05, 0x00, 0x04, 0x30 }; static gcry_md_oid_spec_t oid_spec_sha384[] = { { "2.16.840.1.101.3.4.2.2" }, /* PKCS#1 sha384WithRSAEncryption */ { "1.2.840.113549.1.1.12" }, { NULL }, }; gcry_md_spec_t _gcry_digest_spec_sha384 = { "SHA384", sha384_asn, DIM (sha384_asn), oid_spec_sha384, 48, sha384_init, sha512_write, sha512_final, sha512_read, sizeof (SHA512_CONTEXT), }; md_extra_spec_t _gcry_digest_extraspec_sha384 = { run_selftests };