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See ChangeLog: Sat Nov 13 17:44:23 CET 1999 Werner Koch

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This commit is contained in:
Werner Koch 1999-11-13 16:43:23 +00:00
parent a10fe4efb0
commit 881e513237
57 changed files with 1067 additions and 631 deletions
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41
cipher/elgamal.c
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@ -26,6 +26,7 @@
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "g10lib.h"
#include "util.h"
#include "mpi.h"
#include "cipher.h"
@ -79,7 +80,7 @@ test_keys( ELG_secret_key *sk, unsigned nbits )
/*mpi_set_bytes( test, nbits, get_random_byte, 0 );*/
{ char *p = get_random_bits( nbits, 0, 0 );
mpi_set_buffer( test, p, (nbits+7)/8, 0 );
m_free(p);
g10_free(p);
}
encrypt( out1_a, out1_b, test, &pk );
@ -119,7 +120,7 @@ gen_k( MPI p )
if( DBG_CIPHER )
progress('.');
if( !rndbuf || nbits < 32 ) {
m_free(rndbuf);
g10_free(rndbuf);
rndbuf = get_random_bits( nbits, 1, 1 );
}
else { /* change only some of the higher bits */
@ -128,7 +129,7 @@ gen_k( MPI p )
* maybe it is easier to do this directly in random.c */
char *pp = get_random_bits( 32, 1, 1 );
memcpy( rndbuf,pp, 4 );
m_free(pp);
g10_free(pp);
}
mpi_set_buffer( k, rndbuf, nbytes, 0 );
@ -156,7 +157,7 @@ gen_k( MPI p )
}
}
found:
m_free(rndbuf);
g10_free(rndbuf);
if( DBG_CIPHER )
progress('\n');
mpi_free(p_1);
@ -212,13 +213,13 @@ generate( ELG_secret_key *sk, unsigned nbits, MPI **ret_factors )
progress('.');
if( rndbuf ) { /* change only some of the higher bits */
if( nbits < 16 ) {/* should never happen ... */
m_free(rndbuf);
g10_free(rndbuf);
rndbuf = get_random_bits( nbits, 2, 1 );
}
else {
char *r = get_random_bits( 16, 2, 1 );
memcpy(rndbuf, r, 16/8 );
m_free(r);
g10_free(r);
}
}
else
@ -226,7 +227,7 @@ generate( ELG_secret_key *sk, unsigned nbits, MPI **ret_factors )
mpi_set_buffer( x, rndbuf, (nbits+7)/8, 0 );
mpi_clear_highbit( x, nbits+1 );
} while( !( mpi_cmp_ui( x, 0 )>0 && mpi_cmp( x, p_min1 )<0 ) );
m_free(rndbuf);
g10_free(rndbuf);
y = mpi_alloc(nbits/BITS_PER_MPI_LIMB);
mpi_powm( y, g, x, p );
@ -443,7 +444,7 @@ elg_generate( int algo, unsigned nbits, MPI *skey, MPI **retfactors )
ELG_secret_key sk;
if( !is_ELGAMAL(algo) )
return G10ERR_PUBKEY_ALGO;
return GCRYERR_INV_PK_ALGO;
generate( &sk, nbits, retfactors );
skey[0] = sk.p;
@ -460,16 +461,16 @@ elg_check_secret_key( int algo, MPI *skey )
ELG_secret_key sk;
if( !is_ELGAMAL(algo) )
return G10ERR_PUBKEY_ALGO;
return GCRYERR_INV_PK_ALGO;
if( !skey[0] || !skey[1] || !skey[2] || !skey[3] )
return G10ERR_BAD_MPI;
return GCRYERR_BAD_MPI;
sk.p = skey[0];
sk.g = skey[1];
sk.y = skey[2];
sk.x = skey[3];
if( !check_secret_key( &sk ) )
return G10ERR_BAD_SECKEY;
return GCRYERR_BAD_SECRET_KEY;
return 0;
}
@ -482,9 +483,9 @@ elg_encrypt( int algo, MPI *resarr, MPI data, MPI *pkey )
ELG_public_key pk;
if( !is_ELGAMAL(algo) )
return G10ERR_PUBKEY_ALGO;
return GCRYERR_INV_PK_ALGO;
if( !data || !pkey[0] || !pkey[1] || !pkey[2] )
return G10ERR_BAD_MPI;
return GCRYERR_BAD_MPI;
pk.p = pkey[0];
pk.g = pkey[1];
@ -501,10 +502,10 @@ elg_decrypt( int algo, MPI *result, MPI *data, MPI *skey )
ELG_secret_key sk;
if( !is_ELGAMAL(algo) )
return G10ERR_PUBKEY_ALGO;
return GCRYERR_INV_PK_ALGO;
if( !data[0] || !data[1]
|| !skey[0] || !skey[1] || !skey[2] || !skey[3] )
return G10ERR_BAD_MPI;
return GCRYERR_BAD_MPI;
sk.p = skey[0];
sk.g = skey[1];
@ -521,9 +522,9 @@ elg_sign( int algo, MPI *resarr, MPI data, MPI *skey )
ELG_secret_key sk;
if( !is_ELGAMAL(algo) )
return G10ERR_PUBKEY_ALGO;
return GCRYERR_INV_PK_ALGO;
if( !data || !skey[0] || !skey[1] || !skey[2] || !skey[3] )
return G10ERR_BAD_MPI;
return GCRYERR_BAD_MPI;
sk.p = skey[0];
sk.g = skey[1];
@ -542,16 +543,16 @@ elg_verify( int algo, MPI hash, MPI *data, MPI *pkey,
ELG_public_key pk;
if( !is_ELGAMAL(algo) )
return G10ERR_PUBKEY_ALGO;
return GCRYERR_INV_PK_ALGO;
if( !data[0] || !data[1] || !hash
|| !pkey[0] || !pkey[1] || !pkey[2] )
return G10ERR_BAD_MPI;
return GCRYERR_BAD_MPI;
pk.p = pkey[0];
pk.g = pkey[1];
pk.y = pkey[2];
if( !verify( data[0], data[1], hash, &pk ) )
return G10ERR_BAD_SIGN;
return GCRYERR_BAD_SIGNATURE;
return 0;
}