diff options
Diffstat (limited to 'grub-core/lib/libgcrypt-grub/cipher/sha512.c')
| -rw-r--r-- | grub-core/lib/libgcrypt-grub/cipher/sha512.c | 441 |
1 files changed, 441 insertions, 0 deletions
diff --git a/grub-core/lib/libgcrypt-grub/cipher/sha512.c b/grub-core/lib/libgcrypt-grub/cipher/sha512.c new file mode 100644 index 0000000..856b3d0 --- /dev/null +++ b/grub-core/lib/libgcrypt-grub/cipher/sha512.c @@ -0,0 +1,441 @@ +/* This file was automatically imported with + import_gcry.py. Please don't modify it */ +#include <grub/dl.h> +GRUB_MOD_LICENSE ("GPLv3+"); +/* 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 "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. + */ + + + + + +/* Run a full self-test for ALGO and return 0 on success. */ + + + + +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), + .blocksize = 128 + }; + +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), + .blocksize = 128 + }; + + +GRUB_MOD_INIT(gcry_sha512) +{ + grub_md_register (&_gcry_digest_spec_sha512); + grub_md_register (&_gcry_digest_spec_sha384); +} + +GRUB_MOD_FINI(gcry_sha512) +{ + grub_md_unregister (&_gcry_digest_spec_sha512); + grub_md_unregister (&_gcry_digest_spec_sha384); +} |