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chnages done at the train

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This commit is contained in:
Werner Koch 1998-08-07 08:53:38 +00:00
parent 48a041279d
commit 6d21f2838d
19 changed files with 167 additions and 126 deletions
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22
cipher/elgamal.c
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@ -60,7 +60,7 @@ static void
test_keys( ELG_secret_key *sk, unsigned nbits )
{
ELG_public_key pk;
MPI test = mpi_alloc( nbits / BITS_PER_MPI_LIMB );
MPI test = mpi_alloc( 0 );
MPI out1_a = mpi_alloc( nbits / BITS_PER_MPI_LIMB );
MPI out1_b = mpi_alloc( nbits / BITS_PER_MPI_LIMB );
MPI out2 = mpi_alloc( nbits / BITS_PER_MPI_LIMB );
@ -69,7 +69,11 @@ test_keys( ELG_secret_key *sk, unsigned nbits )
pk.g = sk->g;
pk.y = sk->y;
mpi_set_bytes( test, nbits, get_random_byte, 0 );
/*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);
}
encrypt( out1_a, out1_b, test, &pk );
decrypt( out2, out1_a, out1_b, sk );
@ -94,7 +98,7 @@ test_keys( ELG_secret_key *sk, unsigned nbits )
static MPI
gen_k( MPI p )
{
MPI k = mpi_alloc_secure( mpi_get_nlimbs(p) );
MPI k = mpi_alloc_secure( 0 );
MPI temp = mpi_alloc( mpi_get_nlimbs(p) );
MPI p_1 = mpi_copy(p);
unsigned nbits = mpi_get_nbits(p);
@ -105,7 +109,17 @@ gen_k( MPI p )
for(;;) {
if( DBG_CIPHER )
fputc('.', stderr);
mpi_set_bytes( k, nbits , get_random_byte, 1 );
{ char *p = get_random_bits( nbits, 1, 1 );
mpi_set_buffer( k, p, (nbits+7)/8, 0 );
m_free(p);
/* make sure that the number is of the exact lenght */
if( mpi_test_bit( k, nbits-1 ) )
mpi_set_highbit( k, nbits-1 );
else {
mpi_set_highbit( k, nbits-1 );
mpi_clear_bit( k, nbits-1 );
}
}
if( !(mpi_cmp( k, p_1 ) < 0) ) /* check: k < (p-1) */
continue; /* no */
if( !(mpi_cmp_ui( k, 0 ) > 0) ) /* check: k > 0 */