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Import gcrypt public-key cryptography and implement signature checking.

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This commit is contained in:
Vladimir 'phcoder' Serbinenko 2013-01-11 21:32:42 +01:00
parent 535714bdcf
commit 5e3b8dcbb5
238 changed files with 40500 additions and 417 deletions
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102
grub-core/lib/libgcrypt/cipher/tiger.c
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@ -1,5 +1,5 @@
/* tiger.c - The TIGER hash function
* Copyright (C) 1998, 2001, 2002, 2003 Free Software Foundation, Inc.
* Copyright (C) 1998, 2001, 2002, 2003, 2010 Free Software Foundation, Inc.
*
* This file is part of Libgcrypt.
*
@ -18,25 +18,26 @@
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
*/
/* See http://www.cs.technion.ac.il/~biham/Reports/Tiger/ */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "g10lib.h"
#include "memory.h"
#include "cipher.h"
/* We really need a 64 bit type for this code. */
#ifdef HAVE_U64_TYPEDEF
/* we really need it here, but as this is only experiment we
* can live without Tiger */
typedef struct {
u64 a, b, c;
byte buf[64];
int count;
u32 nblocks;
typedef struct
{
u64 a, b, c;
byte buf[64];
int count;
u32 nblocks;
int variant; /* 0 = old code, 1 = fixed code, 2 - TIGER2. */
} TIGER_CONTEXT;
@ -588,7 +589,7 @@ static u64 sbox4[256] = {
};
static void
tiger_init( void *context )
do_init (void *context, int variant)
{
TIGER_CONTEXT *hd = context;
@ -597,6 +598,25 @@ tiger_init( void *context )
hd->c = 0xf096a5b4c3b2e187LL;
hd->nblocks = 0;
hd->count = 0;
hd->variant = variant;
}
static void
tiger_init (void *context)
{
do_init (context, 0);
}
static void
tiger1_init (void *context)
{
do_init (context, 1);
}
static void
tiger2_init (void *context)
{
do_init (context, 2);
}
static void
@ -763,6 +783,7 @@ tiger_final( void *context )
TIGER_CONTEXT *hd = context;
u32 t, msb, lsb;
byte *p;
byte pad = hd->variant == 2? 0x80 : 0x01;
tiger_write(hd, NULL, 0); /* flush */;
@ -782,13 +803,13 @@ tiger_final( void *context )
if( hd->count < 56 ) /* enough room */
{
hd->buf[hd->count++] = 0x01; /* pad */
hd->buf[hd->count++] = pad;
while( hd->count < 56 )
hd->buf[hd->count++] = 0; /* pad */
}
else /* need one extra block */
{
hd->buf[hd->count++] = 0x01; /* pad character */
hd->buf[hd->count++] = pad; /* pad character */
while( hd->count < 64 )
hd->buf[hd->count++] = 0;
tiger_write(hd, NULL, 0); /* flush */;
@ -815,10 +836,24 @@ tiger_final( void *context )
*p++ = hd->a >> 24; *p++ = hd->a >> 16; \
*p++ = hd->a >> 8; *p++ = hd->a; } while(0)
#endif
X(a);
X(b);
X(c);
#define Y(a) do { *p++ = hd->a ; *p++ = hd->a >> 8; \
*p++ = hd->a >> 16; *p++ = hd->a >> 24; \
*p++ = hd->a >> 32; *p++ = hd->a >> 40; \
*p++ = hd->a >> 48; *p++ = hd->a >> 56; } while(0)
if (hd->variant == 0)
{
X(a);
X(b);
X(c);
}
else
{
Y(a);
Y(b);
Y(c);
}
#undef X
#undef Y
}
static byte *
@ -829,22 +864,47 @@ tiger_read( void *context )
return hd->buf;
}
static byte asn[19] = /* Object ID is 1.3.6.1.4.1.11591.12.2 */
/* This is the old TIGER variant based on the unfixed reference
implementation. IT was used in GnupG up to 1.3.2. We don't provide
an OID anymore because that would not be correct. */
gcry_md_spec_t _gcry_digest_spec_tiger =
{
"TIGER192", NULL, 0, NULL, 24,
tiger_init, tiger_write, tiger_final, tiger_read,
sizeof (TIGER_CONTEXT)
};
/* This is the fixed TIGER implementation. */
static byte asn1[19] = /* Object ID is 1.3.6.1.4.1.11591.12.2 */
{ 0x30, 0x29, 0x30, 0x0d, 0x06, 0x09, 0x2b, 0x06,
0x01, 0x04, 0x01, 0xda, 0x47, 0x0c, 0x02,
0x05, 0x00, 0x04, 0x18 };
static gcry_md_oid_spec_t oid_spec_tiger[] =
static gcry_md_oid_spec_t oid_spec_tiger1[] =
{
/* GNU.digestAlgorithm TIGER */
{ "1.3.6.1.4.1.11591.12.2" },
{ NULL }
};
gcry_md_spec_t _gcry_digest_spec_tiger =
gcry_md_spec_t _gcry_digest_spec_tiger1 =
{
"TIGER192", asn, DIM (asn), oid_spec_tiger, 24,
tiger_init, tiger_write, tiger_final, tiger_read,
"TIGER", asn1, DIM (asn1), oid_spec_tiger1, 24,
tiger1_init, tiger_write, tiger_final, tiger_read,
sizeof (TIGER_CONTEXT)
};
/* This is TIGER2 which usues a changed padding algorithm. */
gcry_md_spec_t _gcry_digest_spec_tiger2 =
{
"TIGER2", NULL, 0, NULL, 24,
tiger2_init, tiger_write, tiger_final, tiger_read,
sizeof (TIGER_CONTEXT)
};