diff options
Diffstat (limited to 'cipher/primegen.c')
| -rw-r--r-- | cipher/primegen.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/cipher/primegen.c b/cipher/primegen.c index 9f6ec705..14a5ccfe 100644 --- a/cipher/primegen.c +++ b/cipher/primegen.c @@ -726,19 +726,22 @@ prime_generate_internal (int need_q_factor, /* Generate a prime used for discrete logarithm algorithms; i.e. this - prime will be public and no strong random is required. */ -gcry_mpi_t + prime will be public and no strong random is required. On success + R_PRIME receives a new MPI with the prime. On error R_PRIME is set + to NULL and an error code is returned. If RET_FACTORS is not NULL + it is set to an allocated array of factors on success or to NULL on + error. */ +gcry_err_code_t _gcry_generate_elg_prime (int mode, unsigned pbits, unsigned qbits, - gcry_mpi_t g, gcry_mpi_t **ret_factors) + gcry_mpi_t g, + gcry_mpi_t *r_prime, gcry_mpi_t **ret_factors) { - gcry_mpi_t prime = NULL; - - if (prime_generate_internal ((mode == 1), &prime, pbits, qbits, g, - ret_factors, GCRY_WEAK_RANDOM, 0, 0, - NULL, NULL)) - prime = NULL; /* (Should be NULL in the error case anyway.) */ - - return prime; + *r_prime = NULL; + if (ret_factors) + *ret_factors = NULL; + return prime_generate_internal ((mode == 1), r_prime, pbits, qbits, g, + ret_factors, GCRY_WEAK_RANDOM, 0, 0, + NULL, NULL); } |