security-and-privacy/gnupg
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bug fixes

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This commit is contained in:
Werner Koch 1998-02-11 23:22:09 +00:00
parent 4c0c155922
commit bc5789665a
37 changed files with 949 additions and 137 deletions
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10
cipher/elgamal.c
View file

@ -321,6 +321,16 @@ elg_verify(MPI a, MPI b, MPI input, ELG_public_key *pkey )
t2 = mpi_alloc( mpi_get_nlimbs(a) );
#if 0
/* t1 = (y^a mod p) * (a^b mod p) mod p */
mpi_powm( t1, pkey->y, a, pkey->p );
mpi_powm( t2, a, b, pkey->p );
mpi_mulm( t1, t1, t2, pkey->p );
/* t2 = g ^ input mod p */
mpi_powm( t2, pkey->g, input, pkey->p );
rc = !mpi_cmp( t1, t2 );
#elif 0
/* t1 = (y^a mod p) * (a^b mod p) mod p */
base[0] = pkey->y; exp[0] = a;
base[1] = a; exp[1] = b;

18
cipher/md.c
View file

@ -28,7 +28,7 @@
#include "errors.h"
static FILE *dumpfp;
/*static FILE *dumpfp;*/
/****************
* Open a message digest handle for use with algorithm ALGO.
@ -40,14 +40,16 @@ md_open( int algo, int secure )
{
MD_HANDLE hd;
#if 0
if( !dumpfp )
dumpfp = fopen("md.out", "w");
if( !dumpfp )
BUG();
{ int i; for(i=0; i < 16; i++ ) putc('\xff', dumpfp ); }
#endif
hd = secure ? m_alloc_secure_clear( sizeof *hd )
: m_alloc_clear( sizeof *hd );
hd->secure = secure;
if( algo )
md_enable( hd, algo );
return hd;
@ -78,9 +80,9 @@ md_copy( MD_HANDLE a )
{
MD_HANDLE b;
{ int i; for(i=0; i < 16; i++ ) putc('\xee', dumpfp ); }
b = m_is_secure(a)? m_alloc_secure( sizeof *b )
: m_alloc( sizeof *b );
/*{ int i; for(i=0; i < 16; i++ ) putc('\xee', dumpfp ); }*/
b = a->secure ? m_alloc_secure( sizeof *b )
: m_alloc( sizeof *b );
memcpy( b, a, sizeof *a );
return b;
}
@ -98,10 +100,10 @@ md_close(MD_HANDLE a)
void
md_write( MD_HANDLE a, byte *inbuf, size_t inlen)
{
if( a->bufcount && fwrite(a->buffer, a->bufcount, 1, dumpfp ) != 1 )
/* if( a->bufcount && fwrite(a->buffer, a->bufcount, 1, dumpfp ) != 1 )
BUG();
if( inlen && fwrite(inbuf, inlen, 1, dumpfp ) != 1 )
BUG();
BUG(); */
if( a->use_rmd160 ) {
rmd160_write( &a->rmd160, a->buffer, a->bufcount );
rmd160_write( &a->rmd160, inbuf, inlen );
@ -124,7 +126,7 @@ md_final(MD_HANDLE a)
{
if( a->bufcount )
md_write( a, NULL, 0 );
{ int i; for(i=0; i < 16; i++ ) putc('\xcc', dumpfp ); }
/*{ int i; for(i=0; i < 16; i++ ) putc('\xcc', dumpfp ); }*/
if( a->use_rmd160 ) {
byte *p;
rmd160_final( &a->rmd160 );

3
cipher/md.h
View file

@ -36,6 +36,7 @@ typedef struct {
MD5_CONTEXT md5;
byte buffer[MD_BUFFER_SIZE]; /* primary buffer */
int bufcount;
int secure;
} *MD_HANDLE;
@ -55,6 +56,6 @@ void md_write( MD_HANDLE a, byte *inbuf, size_t inlen);
void md_final(MD_HANDLE a);
byte *md_read( MD_HANDLE a, int algo );
int md_get_algo( MD_HANDLE a );
#define md_is_secure(a) ((a)->secure)
#endif /*G10_MD_H*/