627 строки
17 KiB
C
627 строки
17 KiB
C
/* sha1.c - SHA1 hash function
|
||
* Copyright (C) 1998, 2001, 2002, 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:
|
||
*
|
||
* "abc"
|
||
* A999 3E36 4706 816A BA3E 2571 7850 C26C 9CD0 D89D
|
||
*
|
||
* "abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq"
|
||
* 8498 3E44 1C3B D26E BAAE 4AA1 F951 29E5 E546 70F1
|
||
*/
|
||
|
||
|
||
#include <config.h>
|
||
#include <stdio.h>
|
||
#include <stdlib.h>
|
||
#include <string.h>
|
||
#ifdef HAVE_STDINT_H
|
||
# include <stdint.h>
|
||
#endif
|
||
|
||
#include "g10lib.h"
|
||
#include "bithelp.h"
|
||
#include "bufhelp.h"
|
||
#include "cipher.h"
|
||
#include "sha1.h"
|
||
|
||
|
||
/* USE_SSSE3 indicates whether to compile with Intel SSSE3 code. */
|
||
#undef USE_SSSE3
|
||
#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_SSSE3) && \
|
||
(defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
|
||
defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
|
||
# define USE_SSSE3 1
|
||
#endif
|
||
|
||
/* USE_AVX indicates whether to compile with Intel AVX code. */
|
||
#undef USE_AVX
|
||
#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_AVX) && \
|
||
(defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
|
||
defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
|
||
# define USE_AVX 1
|
||
#endif
|
||
|
||
/* USE_BMI2 indicates whether to compile with Intel AVX/BMI2 code. */
|
||
#undef USE_BMI2
|
||
#if defined(__x86_64__) && defined(HAVE_GCC_INLINE_ASM_AVX) && \
|
||
defined(HAVE_GCC_INLINE_ASM_BMI2) && \
|
||
(defined(HAVE_COMPATIBLE_GCC_AMD64_PLATFORM_AS) || \
|
||
defined(HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS))
|
||
# define USE_BMI2 1
|
||
#endif
|
||
|
||
/* USE_NEON indicates whether to enable ARM NEON assembly code. */
|
||
#undef USE_NEON
|
||
#ifdef ENABLE_NEON_SUPPORT
|
||
# if defined(HAVE_ARM_ARCH_V6) && defined(__ARMEL__) \
|
||
&& defined(HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS) \
|
||
&& defined(HAVE_GCC_INLINE_ASM_NEON)
|
||
# define USE_NEON 1
|
||
# endif
|
||
#endif
|
||
|
||
/* USE_ARM_CE indicates whether to enable ARMv8 Crypto Extension assembly
|
||
* code. */
|
||
#undef USE_ARM_CE
|
||
#ifdef ENABLE_ARM_CRYPTO_SUPPORT
|
||
# if defined(HAVE_ARM_ARCH_V6) && defined(__ARMEL__) \
|
||
&& defined(HAVE_COMPATIBLE_GCC_ARM_PLATFORM_AS) \
|
||
&& defined(HAVE_GCC_INLINE_ASM_AARCH32_CRYPTO)
|
||
# define USE_ARM_CE 1
|
||
# elif defined(__AARCH64EL__) \
|
||
&& defined(HAVE_COMPATIBLE_GCC_AARCH64_PLATFORM_AS) \
|
||
&& defined(HAVE_GCC_INLINE_ASM_AARCH64_CRYPTO)
|
||
# define USE_ARM_CE 1
|
||
# endif
|
||
#endif
|
||
|
||
/* A macro to test whether P is properly aligned for an u32 type.
|
||
Note that config.h provides a suitable replacement for uintptr_t if
|
||
it does not exist in stdint.h. */
|
||
/* #if __GNUC__ >= 2 */
|
||
/* # define U32_ALIGNED_P(p) (!(((uintptr_t)p) % __alignof__ (u32))) */
|
||
/* #else */
|
||
/* # define U32_ALIGNED_P(p) (!(((uintptr_t)p) % sizeof (u32))) */
|
||
/* #endif */
|
||
|
||
|
||
static unsigned int
|
||
transform (void *c, const unsigned char *data, size_t nblks);
|
||
|
||
|
||
static void
|
||
sha1_init (void *context, unsigned int flags)
|
||
{
|
||
SHA1_CONTEXT *hd = context;
|
||
unsigned int features = _gcry_get_hw_features ();
|
||
|
||
(void)flags;
|
||
|
||
hd->h0 = 0x67452301;
|
||
hd->h1 = 0xefcdab89;
|
||
hd->h2 = 0x98badcfe;
|
||
hd->h3 = 0x10325476;
|
||
hd->h4 = 0xc3d2e1f0;
|
||
|
||
hd->bctx.nblocks = 0;
|
||
hd->bctx.nblocks_high = 0;
|
||
hd->bctx.count = 0;
|
||
hd->bctx.blocksize = 64;
|
||
hd->bctx.bwrite = transform;
|
||
|
||
#ifdef USE_SSSE3
|
||
hd->use_ssse3 = (features & HWF_INTEL_SSSE3) != 0;
|
||
#endif
|
||
#ifdef USE_AVX
|
||
/* AVX implementation uses SHLD which is known to be slow on non-Intel CPUs.
|
||
* Therefore use this implementation on Intel CPUs only. */
|
||
hd->use_avx = (features & HWF_INTEL_AVX) && (features & HWF_INTEL_FAST_SHLD);
|
||
#endif
|
||
#ifdef USE_BMI2
|
||
hd->use_bmi2 = (features & HWF_INTEL_AVX) && (features & HWF_INTEL_BMI2);
|
||
#endif
|
||
#ifdef USE_NEON
|
||
hd->use_neon = (features & HWF_ARM_NEON) != 0;
|
||
#endif
|
||
#ifdef USE_ARM_CE
|
||
hd->use_arm_ce = (features & HWF_ARM_SHA1) != 0;
|
||
#endif
|
||
(void)features;
|
||
}
|
||
|
||
/*
|
||
* Initialize the context HD. This is used to prepare the use of
|
||
* _gcry_sha1_mixblock. WARNING: This is a special purpose function
|
||
* for exclusive use by random-csprng.c.
|
||
*/
|
||
void
|
||
_gcry_sha1_mixblock_init (SHA1_CONTEXT *hd)
|
||
{
|
||
sha1_init (hd, 0);
|
||
}
|
||
|
||
|
||
/* Round function macros. */
|
||
#define K1 0x5A827999L
|
||
#define K2 0x6ED9EBA1L
|
||
#define K3 0x8F1BBCDCL
|
||
#define K4 0xCA62C1D6L
|
||
#define F1(x,y,z) ( z ^ ( x & ( y ^ z ) ) )
|
||
#define F2(x,y,z) ( x ^ y ^ z )
|
||
#define F3(x,y,z) ( ( x & y ) | ( z & ( x | y ) ) )
|
||
#define F4(x,y,z) ( x ^ y ^ z )
|
||
#define M(i) ( tm = x[ i &0x0f] \
|
||
^ x[(i-14)&0x0f] \
|
||
^ x[(i-8) &0x0f] \
|
||
^ x[(i-3) &0x0f], \
|
||
(x[i&0x0f] = rol(tm, 1)))
|
||
#define R(a,b,c,d,e,f,k,m) do { e += rol( a, 5 ) \
|
||
+ f( b, c, d ) \
|
||
+ k \
|
||
+ m; \
|
||
b = rol( b, 30 ); \
|
||
} while(0)
|
||
|
||
|
||
#ifdef USE_NEON
|
||
unsigned int
|
||
_gcry_sha1_transform_armv7_neon (void *state, const unsigned char *data,
|
||
size_t nblks);
|
||
#endif
|
||
|
||
#ifdef USE_ARM_CE
|
||
unsigned int
|
||
_gcry_sha1_transform_armv8_ce (void *state, const unsigned char *data,
|
||
size_t nblks);
|
||
#endif
|
||
|
||
/*
|
||
* Transform NBLOCKS of each 64 bytes (16 32-bit words) at DATA.
|
||
*/
|
||
static unsigned int
|
||
transform_blk (void *ctx, const unsigned char *data)
|
||
{
|
||
SHA1_CONTEXT *hd = ctx;
|
||
const u32 *idata = (const void *)data;
|
||
register u32 a, b, c, d, e; /* Local copies of the chaining variables. */
|
||
register u32 tm; /* Helper. */
|
||
u32 x[16]; /* The array we work on. */
|
||
|
||
#define I(i) (x[i] = buf_get_be32(idata + i))
|
||
|
||
/* Get the values of the chaining variables. */
|
||
a = hd->h0;
|
||
b = hd->h1;
|
||
c = hd->h2;
|
||
d = hd->h3;
|
||
e = hd->h4;
|
||
|
||
/* Transform. */
|
||
R( a, b, c, d, e, F1, K1, I( 0) );
|
||
R( e, a, b, c, d, F1, K1, I( 1) );
|
||
R( d, e, a, b, c, F1, K1, I( 2) );
|
||
R( c, d, e, a, b, F1, K1, I( 3) );
|
||
R( b, c, d, e, a, F1, K1, I( 4) );
|
||
R( a, b, c, d, e, F1, K1, I( 5) );
|
||
R( e, a, b, c, d, F1, K1, I( 6) );
|
||
R( d, e, a, b, c, F1, K1, I( 7) );
|
||
R( c, d, e, a, b, F1, K1, I( 8) );
|
||
R( b, c, d, e, a, F1, K1, I( 9) );
|
||
R( a, b, c, d, e, F1, K1, I(10) );
|
||
R( e, a, b, c, d, F1, K1, I(11) );
|
||
R( d, e, a, b, c, F1, K1, I(12) );
|
||
R( c, d, e, a, b, F1, K1, I(13) );
|
||
R( b, c, d, e, a, F1, K1, I(14) );
|
||
R( a, b, c, d, e, F1, K1, I(15) );
|
||
R( e, a, b, c, d, F1, K1, M(16) );
|
||
R( d, e, a, b, c, F1, K1, M(17) );
|
||
R( c, d, e, a, b, F1, K1, M(18) );
|
||
R( b, c, d, e, a, F1, K1, M(19) );
|
||
R( a, b, c, d, e, F2, K2, M(20) );
|
||
R( e, a, b, c, d, F2, K2, M(21) );
|
||
R( d, e, a, b, c, F2, K2, M(22) );
|
||
R( c, d, e, a, b, F2, K2, M(23) );
|
||
R( b, c, d, e, a, F2, K2, M(24) );
|
||
R( a, b, c, d, e, F2, K2, M(25) );
|
||
R( e, a, b, c, d, F2, K2, M(26) );
|
||
R( d, e, a, b, c, F2, K2, M(27) );
|
||
R( c, d, e, a, b, F2, K2, M(28) );
|
||
R( b, c, d, e, a, F2, K2, M(29) );
|
||
R( a, b, c, d, e, F2, K2, M(30) );
|
||
R( e, a, b, c, d, F2, K2, M(31) );
|
||
R( d, e, a, b, c, F2, K2, M(32) );
|
||
R( c, d, e, a, b, F2, K2, M(33) );
|
||
R( b, c, d, e, a, F2, K2, M(34) );
|
||
R( a, b, c, d, e, F2, K2, M(35) );
|
||
R( e, a, b, c, d, F2, K2, M(36) );
|
||
R( d, e, a, b, c, F2, K2, M(37) );
|
||
R( c, d, e, a, b, F2, K2, M(38) );
|
||
R( b, c, d, e, a, F2, K2, M(39) );
|
||
R( a, b, c, d, e, F3, K3, M(40) );
|
||
R( e, a, b, c, d, F3, K3, M(41) );
|
||
R( d, e, a, b, c, F3, K3, M(42) );
|
||
R( c, d, e, a, b, F3, K3, M(43) );
|
||
R( b, c, d, e, a, F3, K3, M(44) );
|
||
R( a, b, c, d, e, F3, K3, M(45) );
|
||
R( e, a, b, c, d, F3, K3, M(46) );
|
||
R( d, e, a, b, c, F3, K3, M(47) );
|
||
R( c, d, e, a, b, F3, K3, M(48) );
|
||
R( b, c, d, e, a, F3, K3, M(49) );
|
||
R( a, b, c, d, e, F3, K3, M(50) );
|
||
R( e, a, b, c, d, F3, K3, M(51) );
|
||
R( d, e, a, b, c, F3, K3, M(52) );
|
||
R( c, d, e, a, b, F3, K3, M(53) );
|
||
R( b, c, d, e, a, F3, K3, M(54) );
|
||
R( a, b, c, d, e, F3, K3, M(55) );
|
||
R( e, a, b, c, d, F3, K3, M(56) );
|
||
R( d, e, a, b, c, F3, K3, M(57) );
|
||
R( c, d, e, a, b, F3, K3, M(58) );
|
||
R( b, c, d, e, a, F3, K3, M(59) );
|
||
R( a, b, c, d, e, F4, K4, M(60) );
|
||
R( e, a, b, c, d, F4, K4, M(61) );
|
||
R( d, e, a, b, c, F4, K4, M(62) );
|
||
R( c, d, e, a, b, F4, K4, M(63) );
|
||
R( b, c, d, e, a, F4, K4, M(64) );
|
||
R( a, b, c, d, e, F4, K4, M(65) );
|
||
R( e, a, b, c, d, F4, K4, M(66) );
|
||
R( d, e, a, b, c, F4, K4, M(67) );
|
||
R( c, d, e, a, b, F4, K4, M(68) );
|
||
R( b, c, d, e, a, F4, K4, M(69) );
|
||
R( a, b, c, d, e, F4, K4, M(70) );
|
||
R( e, a, b, c, d, F4, K4, M(71) );
|
||
R( d, e, a, b, c, F4, K4, M(72) );
|
||
R( c, d, e, a, b, F4, K4, M(73) );
|
||
R( b, c, d, e, a, F4, K4, M(74) );
|
||
R( a, b, c, d, e, F4, K4, M(75) );
|
||
R( e, a, b, c, d, F4, K4, M(76) );
|
||
R( d, e, a, b, c, F4, K4, M(77) );
|
||
R( c, d, e, a, b, F4, K4, M(78) );
|
||
R( b, c, d, e, a, F4, K4, M(79) );
|
||
|
||
/* Update the chaining variables. */
|
||
hd->h0 += a;
|
||
hd->h1 += b;
|
||
hd->h2 += c;
|
||
hd->h3 += d;
|
||
hd->h4 += e;
|
||
|
||
return /* burn_stack */ 88+4*sizeof(void*);
|
||
}
|
||
|
||
|
||
/* Assembly implementations use SystemV ABI, ABI conversion and additional
|
||
* stack to store XMM6-XMM15 needed on Win64. */
|
||
#undef ASM_FUNC_ABI
|
||
#undef ASM_EXTRA_STACK
|
||
#if defined(USE_SSSE3) || defined(USE_AVX) || defined(USE_BMI2)
|
||
# ifdef HAVE_COMPATIBLE_GCC_WIN64_PLATFORM_AS
|
||
# define ASM_FUNC_ABI __attribute__((sysv_abi))
|
||
# define ASM_EXTRA_STACK (10 * 16)
|
||
# else
|
||
# define ASM_FUNC_ABI
|
||
# define ASM_EXTRA_STACK 0
|
||
# endif
|
||
#endif
|
||
|
||
|
||
#ifdef USE_SSSE3
|
||
unsigned int
|
||
_gcry_sha1_transform_amd64_ssse3 (void *state, const unsigned char *data,
|
||
size_t nblks) ASM_FUNC_ABI;
|
||
#endif
|
||
|
||
#ifdef USE_AVX
|
||
unsigned int
|
||
_gcry_sha1_transform_amd64_avx (void *state, const unsigned char *data,
|
||
size_t nblks) ASM_FUNC_ABI;
|
||
#endif
|
||
|
||
#ifdef USE_BMI2
|
||
unsigned int
|
||
_gcry_sha1_transform_amd64_avx_bmi2 (void *state, const unsigned char *data,
|
||
size_t nblks) ASM_FUNC_ABI;
|
||
#endif
|
||
|
||
|
||
static unsigned int
|
||
transform (void *ctx, const unsigned char *data, size_t nblks)
|
||
{
|
||
SHA1_CONTEXT *hd = ctx;
|
||
unsigned int burn;
|
||
|
||
#ifdef USE_BMI2
|
||
if (hd->use_bmi2)
|
||
return _gcry_sha1_transform_amd64_avx_bmi2 (&hd->h0, data, nblks)
|
||
+ 4 * sizeof(void*) + ASM_EXTRA_STACK;
|
||
#endif
|
||
#ifdef USE_AVX
|
||
if (hd->use_avx)
|
||
return _gcry_sha1_transform_amd64_avx (&hd->h0, data, nblks)
|
||
+ 4 * sizeof(void*) + ASM_EXTRA_STACK;
|
||
#endif
|
||
#ifdef USE_SSSE3
|
||
if (hd->use_ssse3)
|
||
return _gcry_sha1_transform_amd64_ssse3 (&hd->h0, data, nblks)
|
||
+ 4 * sizeof(void*) + ASM_EXTRA_STACK;
|
||
#endif
|
||
#ifdef USE_ARM_CE
|
||
if (hd->use_arm_ce)
|
||
return _gcry_sha1_transform_armv8_ce (&hd->h0, data, nblks);
|
||
#endif
|
||
#ifdef USE_NEON
|
||
if (hd->use_neon)
|
||
return _gcry_sha1_transform_armv7_neon (&hd->h0, data, nblks)
|
||
+ 4 * sizeof(void*);
|
||
#endif
|
||
|
||
do
|
||
{
|
||
burn = transform_blk (hd, data);
|
||
data += 64;
|
||
}
|
||
while (--nblks);
|
||
|
||
#ifdef ASM_EXTRA_STACK
|
||
/* 'transform_blk' is typically inlined and XMM6-XMM15 are stored at
|
||
* the prologue of this function. Therefore need to add ASM_EXTRA_STACK to
|
||
* here too.
|
||
*/
|
||
burn += ASM_EXTRA_STACK;
|
||
#endif
|
||
|
||
return burn;
|
||
}
|
||
|
||
|
||
/*
|
||
* Apply the SHA-1 transform function on the buffer BLOCKOF64BYTE
|
||
* which must have a length 64 bytes. BLOCKOF64BYTE must be 32-bit
|
||
* aligned. Updates the 20 bytes in BLOCKOF64BYTE with its mixed
|
||
* content. Returns the number of bytes which should be burned on the
|
||
* stack. You need to use _gcry_sha1_mixblock_init to initialize the
|
||
* context.
|
||
* WARNING: This is a special purpose function for exclusive use by
|
||
* random-csprng.c.
|
||
*/
|
||
unsigned int
|
||
_gcry_sha1_mixblock (SHA1_CONTEXT *hd, void *blockof64byte)
|
||
{
|
||
u32 *p = blockof64byte;
|
||
unsigned int nburn;
|
||
|
||
nburn = transform (hd, blockof64byte, 1);
|
||
p[0] = hd->h0;
|
||
p[1] = hd->h1;
|
||
p[2] = hd->h2;
|
||
p[3] = hd->h3;
|
||
p[4] = hd->h4;
|
||
|
||
return nburn;
|
||
}
|
||
|
||
|
||
/* 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: 20 bytes representing the digest.
|
||
*/
|
||
|
||
static void
|
||
sha1_final(void *context)
|
||
{
|
||
SHA1_CONTEXT *hd = context;
|
||
u32 t, th, msb, lsb;
|
||
unsigned char *p;
|
||
unsigned int burn;
|
||
|
||
_gcry_md_block_write (hd, NULL, 0); /* flush */;
|
||
|
||
t = hd->bctx.nblocks;
|
||
if (sizeof t == sizeof hd->bctx.nblocks)
|
||
th = hd->bctx.nblocks_high;
|
||
else
|
||
th = hd->bctx.nblocks >> 32;
|
||
|
||
/* multiply by 64 to make a byte count */
|
||
lsb = t << 6;
|
||
msb = (th << 6) | (t >> 26);
|
||
/* add the count */
|
||
t = lsb;
|
||
if( (lsb += hd->bctx.count) < t )
|
||
msb++;
|
||
/* multiply by 8 to make a bit count */
|
||
t = lsb;
|
||
lsb <<= 3;
|
||
msb <<= 3;
|
||
msb |= t >> 29;
|
||
|
||
if( hd->bctx.count < 56 ) /* enough room */
|
||
{
|
||
hd->bctx.buf[hd->bctx.count++] = 0x80; /* pad */
|
||
while( hd->bctx.count < 56 )
|
||
hd->bctx.buf[hd->bctx.count++] = 0; /* pad */
|
||
}
|
||
else /* need one extra block */
|
||
{
|
||
hd->bctx.buf[hd->bctx.count++] = 0x80; /* pad character */
|
||
while( hd->bctx.count < 64 )
|
||
hd->bctx.buf[hd->bctx.count++] = 0;
|
||
_gcry_md_block_write(hd, NULL, 0); /* flush */;
|
||
memset(hd->bctx.buf, 0, 56 ); /* fill next block with zeroes */
|
||
}
|
||
/* append the 64 bit count */
|
||
buf_put_be32(hd->bctx.buf + 56, msb);
|
||
buf_put_be32(hd->bctx.buf + 60, lsb);
|
||
burn = transform( hd, hd->bctx.buf, 1 );
|
||
_gcry_burn_stack (burn);
|
||
|
||
p = hd->bctx.buf;
|
||
#define X(a) do { buf_put_be32(p, hd->h##a); p += 4; } while(0)
|
||
X(0);
|
||
X(1);
|
||
X(2);
|
||
X(3);
|
||
X(4);
|
||
#undef X
|
||
|
||
}
|
||
|
||
static unsigned char *
|
||
sha1_read( void *context )
|
||
{
|
||
SHA1_CONTEXT *hd = context;
|
||
|
||
return hd->bctx.buf;
|
||
}
|
||
|
||
/****************
|
||
* Shortcut functions which puts the hash value of the supplied buffer
|
||
* into outbuf which must have a size of 20 bytes.
|
||
*/
|
||
void
|
||
_gcry_sha1_hash_buffer (void *outbuf, const void *buffer, size_t length)
|
||
{
|
||
SHA1_CONTEXT hd;
|
||
|
||
sha1_init (&hd, 0);
|
||
_gcry_md_block_write (&hd, buffer, length);
|
||
sha1_final (&hd);
|
||
memcpy (outbuf, hd.bctx.buf, 20);
|
||
}
|
||
|
||
|
||
/* Variant of the above shortcut function using a multiple buffers. */
|
||
void
|
||
_gcry_sha1_hash_buffers (void *outbuf, const gcry_buffer_t *iov, int iovcnt)
|
||
{
|
||
SHA1_CONTEXT hd;
|
||
|
||
sha1_init (&hd, 0);
|
||
for (;iovcnt > 0; iov++, iovcnt--)
|
||
_gcry_md_block_write (&hd,
|
||
(const char*)iov[0].data + iov[0].off, iov[0].len);
|
||
sha1_final (&hd);
|
||
memcpy (outbuf, hd.bctx.buf, 20);
|
||
}
|
||
|
||
|
||
|
||
/*
|
||
Self-test section.
|
||
*/
|
||
|
||
|
||
static gpg_err_code_t
|
||
selftests_sha1 (int extended, selftest_report_func_t report)
|
||
{
|
||
const char *what;
|
||
const char *errtxt;
|
||
|
||
what = "short string";
|
||
errtxt = _gcry_hash_selftest_check_one
|
||
(GCRY_MD_SHA1, 0,
|
||
"abc", 3,
|
||
"\xA9\x99\x3E\x36\x47\x06\x81\x6A\xBA\x3E"
|
||
"\x25\x71\x78\x50\xC2\x6C\x9C\xD0\xD8\x9D", 20);
|
||
if (errtxt)
|
||
goto failed;
|
||
|
||
if (extended)
|
||
{
|
||
what = "long string";
|
||
errtxt = _gcry_hash_selftest_check_one
|
||
(GCRY_MD_SHA1, 0,
|
||
"abcdbcdecdefdefgefghfghighijhijkijkljklmklmnlmnomnopnopq", 56,
|
||
"\x84\x98\x3E\x44\x1C\x3B\xD2\x6E\xBA\xAE"
|
||
"\x4A\xA1\xF9\x51\x29\xE5\xE5\x46\x70\xF1", 20);
|
||
if (errtxt)
|
||
goto failed;
|
||
|
||
what = "one million \"a\"";
|
||
errtxt = _gcry_hash_selftest_check_one
|
||
(GCRY_MD_SHA1, 1,
|
||
NULL, 0,
|
||
"\x34\xAA\x97\x3C\xD4\xC4\xDA\xA4\xF6\x1E"
|
||
"\xEB\x2B\xDB\xAD\x27\x31\x65\x34\x01\x6F", 20);
|
||
if (errtxt)
|
||
goto failed;
|
||
}
|
||
|
||
return 0; /* Succeeded. */
|
||
|
||
failed:
|
||
if (report)
|
||
report ("digest", GCRY_MD_SHA1, 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_SHA1:
|
||
ec = selftests_sha1 (extended, report);
|
||
break;
|
||
default:
|
||
ec = GPG_ERR_DIGEST_ALGO;
|
||
break;
|
||
|
||
}
|
||
return ec;
|
||
}
|
||
|
||
|
||
|
||
|
||
static unsigned char asn[15] = /* Object ID is 1.3.14.3.2.26 */
|
||
{ 0x30, 0x21, 0x30, 0x09, 0x06, 0x05, 0x2b, 0x0e, 0x03,
|
||
0x02, 0x1a, 0x05, 0x00, 0x04, 0x14 };
|
||
|
||
static gcry_md_oid_spec_t oid_spec_sha1[] =
|
||
{
|
||
/* iso.member-body.us.rsadsi.pkcs.pkcs-1.5 (sha1WithRSAEncryption) */
|
||
{ "1.2.840.113549.1.1.5" },
|
||
/* iso.member-body.us.x9-57.x9cm.3 (dsaWithSha1)*/
|
||
{ "1.2.840.10040.4.3" },
|
||
/* from NIST's OIW (sha1) */
|
||
{ "1.3.14.3.2.26" },
|
||
/* from NIST OIW (sha-1WithRSAEncryption) */
|
||
{ "1.3.14.3.2.29" },
|
||
/* iso.member-body.us.ansi-x9-62.signatures.ecdsa-with-sha1 */
|
||
{ "1.2.840.10045.4.1" },
|
||
{ NULL },
|
||
};
|
||
|
||
gcry_md_spec_t _gcry_digest_spec_sha1 =
|
||
{
|
||
GCRY_MD_SHA1, {0, 1},
|
||
"SHA1", asn, DIM (asn), oid_spec_sha1, 20,
|
||
sha1_init, _gcry_md_block_write, sha1_final, sha1_read, NULL,
|
||
sizeof (SHA1_CONTEXT),
|
||
run_selftests
|
||
};
|