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Mention that mpi_fill_random interprets PRNG output as big-endian

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Hanno Becker 2017-10-17 15:17:05 +01:00
parent 41a38dfed6
commit cb2ba29c49
1 changed files with 4 additions and 0 deletions
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4
include/mbedtls/bignum.h
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@ -648,6 +648,10 @@ int mbedtls_mpi_exp_mod( mbedtls_mpi *X, const mbedtls_mpi *A, const mbedtls_mpi
* *
* \return 0 if successful, * \return 0 if successful,
* MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed * MBEDTLS_ERR_MPI_ALLOC_FAILED if memory allocation failed
*
* \note The bytes obtained from the PRNG are interpreted
* as a big-endian representation of an MPI; this can
* be relevant in applications like deterministic ECDSA.
*/ */
int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size, int mbedtls_mpi_fill_random( mbedtls_mpi *X, size_t size,
int (*f_rng)(void *, unsigned char *, size_t), int (*f_rng)(void *, unsigned char *, size_t),