aboutsummaryrefslogtreecommitdiffstats
path: root/cipher/sha512.c
diff options
context:
space:
mode:
Diffstat (limited to 'cipher/sha512.c')
-rw-r--r--cipher/sha512.c430
1 files changed, 0 insertions, 430 deletions
diff --git a/cipher/sha512.c b/cipher/sha512.c
deleted file mode 100644
index 523579d25..000000000
--- a/cipher/sha512.c
+++ /dev/null
@@ -1,430 +0,0 @@
-/* sha512.c - SHA384 and SHA512 hash functions
- * Copyright (C) 2003 Free Software Foundation, Inc.
- *
- * Please see below for more legal information!
- *
- * This file is part of GnuPG.
- *
- * GnuPG is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * GnuPG 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 General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
- * USA.
- */
-
-
-/* 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 "util.h"
-#include "algorithms.h"
-
-
-typedef struct {
- u64 h0,h1,h2,h3,h4,h5,h6,h7;
- u64 nblocks;
- byte buf[128];
- int count;
-} SHA512_CONTEXT;
-
-static void
-burn_stack (int bytes)
-{
- char buf[128];
-
- wipememory(buf,sizeof buf);
- bytes -= sizeof buf;
- if (bytes > 0)
- burn_stack (bytes);
-}
-
-
-void
-sha512_init( SHA512_CONTEXT *hd )
-{
- 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;
-}
-
-void
-sha384_init( SHA512_CONTEXT *hd )
-{
- 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, byte *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 BIG_ENDIAN_HOST
- 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( SHA512_CONTEXT *hd, byte *inbuf, size_t inlen)
-{
- if( hd->count == 128 ) { /* flush the buffer */
- transform( hd, hd->buf );
- 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( hd, NULL, 0 );
- if( !inlen )
- return;
- }
-
- while( inlen >= 128 ) {
- transform( hd, inbuf );
- hd->count = 0;
- hd->nblocks++;
- inlen -= 128;
- inbuf += 128;
- }
- 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(SHA512_CONTEXT *hd)
-{
- u64 t, msb, lsb;
- byte *p;
-
- sha512_write(hd, 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(hd, 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 );
- burn_stack (768);
-
- p = hd->buf;
-#ifdef BIG_ENDIAN_HOST
-#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( SHA512_CONTEXT *hd )
-{
- return hd->buf;
-}
-
-/****************
- * Return some information about the algorithm. We need algo here to
- * distinguish different flavors of the algorithm.
- * Returns: A pointer to string describing the algorithm or NULL if
- * the ALGO is invalid.
- */
-const char *
-sha512_get_info( int algo, size_t *contextsize,
- byte **r_asnoid, int *r_asnlen, int *r_mdlen,
- void (**r_init)( void *c ),
- void (**r_write)( void *c, byte *buf, size_t nbytes ),
- void (**r_final)( void *c ),
- byte *(**r_read)( void *c )
- )
-{
- static byte 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
- };
-
- if( algo != 10 )
- return NULL;
-
- *contextsize = sizeof(SHA512_CONTEXT);
- *r_asnoid = asn;
- *r_asnlen = DIM(asn);
- *r_mdlen = 64;
- *(void (**)(SHA512_CONTEXT *))r_init = sha512_init;
- *(void (**)(SHA512_CONTEXT *, byte*, size_t))r_write = sha512_write;
- *(void (**)(SHA512_CONTEXT *))r_final = sha512_final;
- *(byte *(**)(SHA512_CONTEXT *))r_read = sha512_read;
-
- return "SHA512";
-}
-
-/* SHA384 is really a truncated SHA512 with a different
- initialization */
-const char *
-sha384_get_info( int algo, size_t *contextsize,
- byte **r_asnoid, int *r_asnlen, int *r_mdlen,
- void (**r_init)( void *c ),
- void (**r_write)( void *c, byte *buf, size_t nbytes ),
- void (**r_final)( void *c ),
- byte *(**r_read)( void *c )
- )
-{
- static byte 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
- };
-
- if( algo != 9 )
- return NULL;
-
- *contextsize = sizeof(SHA512_CONTEXT);
- *r_asnoid = asn;
- *r_asnlen = DIM(asn);
- *r_mdlen = 48;
- *(void (**)(SHA512_CONTEXT *))r_init = sha384_init;
- *(void (**)(SHA512_CONTEXT *, byte*, size_t))r_write = sha512_write;
- *(void (**)(SHA512_CONTEXT *))r_final = sha512_final;
- *(byte *(**)(SHA512_CONTEXT *))r_read = sha512_read;
-
- return "SHA384";
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-05-02 17:53:07 +0000