diff options
Diffstat (limited to 'cipher/primegen.c')
| -rw-r--r-- | cipher/primegen.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/cipher/primegen.c b/cipher/primegen.c index 66d40dbfc..addc51fd5 100644 --- a/cipher/primegen.c +++ b/cipher/primegen.c @@ -293,7 +293,12 @@ gen_prime( unsigned nbits, int secret, int randomlevel ) int dotcount=0; /* generate a random number */ - mpi_set_bytes( prime, nbits, get_random_byte, randomlevel ); + /*mpi_set_bytes( prime, nbits, get_random_byte, randomlevel );*/ + { char *p = get_random_bits( nbits, randomlevel, secret ); + mpi_set_buffer( prime, p, (nbits+7)/8, 0 ); + m_free(p); + } + /* set high order bit to 1, set low order bit to 1 */ mpi_set_highbit( prime, nbits-1 ); mpi_set_bit( prime, 0 ); @@ -423,8 +428,13 @@ is_prime( MPI n, int steps, int *count ) mpi_set_ui( x, 2 ); } else { - mpi_set_bytes( x, nbits-1, get_random_byte, 0 ); - /* work around a bug in mpi_set_bytes */ + /*mpi_set_bytes( x, nbits-1, get_random_byte, 0 );*/ + { char *p = get_random_bits( nbits, 0, 0 ); + mpi_set_buffer( x, p, (nbits+7)/8, 0 ); + m_free(p); + } + /* make sure that the number is smaller than the prime + * and keep the randomness of the high bit */ if( mpi_test_bit( x, nbits-2 ) ) { mpi_set_highbit( x, nbits-2 ); /* clear all higher bits */ } |