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- Changed the used random function pointer to more flexible format. Renamed havege_rand() to havege_random() to prevent mistakes. Lots of changes as a consequence in library code and programs

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This commit is contained in:
Paul Bakker
2011-11-27 21:07:34 +00:00
parent 880ac7eb95
commit a3d195c41f
31 changed files with 232 additions and 119 deletions
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21
library/bignum.c
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@ -1608,18 +1608,16 @@ cleanup:
return( ret );
}
int mpi_fill_random( mpi *X, size_t size, int (*f_rng)(void *), void *p_rng )
int mpi_fill_random( mpi *X, size_t size,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
size_t k;
unsigned char *p;
MPI_CHK( mpi_grow( X, size ) );
MPI_CHK( mpi_lset( X, 0 ) );
p = (unsigned char *) X->p;
for( k = 0; k < X->n * ciL; k++ )
*p++ = (unsigned char) f_rng( p_rng );
MPI_CHK( f_rng( p_rng, (unsigned char *) X->p, X->n * ciL ) );
cleanup:
return( ret );
@ -1750,7 +1748,9 @@ static const int small_prime[] =
/*
* Miller-Rabin primality test (HAC 4.24)
*/
int mpi_is_prime( mpi *X, int (*f_rng)(void *), void *p_rng )
int mpi_is_prime( mpi *X,
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret, xs;
size_t i, j, n, s;
@ -1809,7 +1809,7 @@ int mpi_is_prime( mpi *X, int (*f_rng)(void *), void *p_rng )
/*
* pick a random A, 1 < A < |X| - 1
*/
mpi_fill_random( &A, X->n, f_rng, p_rng );
MPI_CHK( mpi_fill_random( &A, X->n, f_rng, p_rng ) );
if( mpi_cmp_mpi( &A, &W ) >= 0 )
{
@ -1867,7 +1867,8 @@ cleanup:
* Prime number generation
*/
int mpi_gen_prime( mpi *X, size_t nbits, int dh_flag,
int (*f_rng)(void *), void *p_rng )
int (*f_rng)(void *, unsigned char *, size_t),
void *p_rng )
{
int ret;
size_t k, n;
@ -1880,7 +1881,7 @@ int mpi_gen_prime( mpi *X, size_t nbits, int dh_flag,
n = BITS_TO_LIMBS( nbits );
mpi_fill_random( X, n, f_rng, p_rng );
MPI_CHK( mpi_fill_random( X, n, f_rng, p_rng ) );
k = mpi_msb( X );
if( k < nbits ) MPI_CHK( mpi_shift_l( X, nbits - k ) );