diff options
Diffstat (limited to 'src/libstrongswan/crypto/rngs/rng.h')
| -rw-r--r-- | src/libstrongswan/crypto/rngs/rng.h | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/src/libstrongswan/crypto/rngs/rng.h b/src/libstrongswan/crypto/rngs/rng.h index 48ca52dd8..c72509b54 100644 --- a/src/libstrongswan/crypto/rngs/rng.h +++ b/src/libstrongswan/crypto/rngs/rng.h @@ -75,4 +75,31 @@ struct rng_t { void (*destroy) (rng_t *this); }; +/** + * Wrapper around rng_t.get_bytes() ensuring that either all bytes or at least + * the first byte is not zero. + * + * @param rng rng_t object + * @param len number of bytes to get + * @param buffer pointer where the generated bytes will be written + * @param all TRUE if all bytes have to be non-zero + * @return TRUE if bytes successfully written + */ +bool rng_get_bytes_not_zero(rng_t *rng, size_t len, u_int8_t *buffer, bool all); + +/** + * Wrapper around rng_t.allocate_bytes() ensuring that either all bytes or at + * least the first byte is not zero. + * + * @param rng rng_t object + * @param len number of bytes to get + * @param buffer pointer where the generated bytes will be written + * @param all TRUE if all bytes have to be non-zero + * @return TRUE if bytes successfully written + */ +bool rng_allocate_bytes_not_zero(rng_t *rng, size_t len, chunk_t *chunk, + bool all); + + + #endif /** RNG_H_ @}*/ |