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Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
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Gabor Mezei 2023-03-08 15:26:32 +01:00
parent eb591ff94d
commit d1f16b937e
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15
library/ecp_invasive.h
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@ -118,6 +118,21 @@ int mbedtls_ecp_mod_p224_raw(mbedtls_mpi_uint *X, size_t X_limbs);
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
/** Fast quasi-reduction modulo p256 (FIPS 186-3 D.2.3)
*
* \param[in,out] X The address of the MPI to be converted.
* Must have exact limb size that stores a 512-bit MPI
* (double the bitlength of the modulus).
* Upon return holds the reduced value which is
* in range `0 <= X < 2 * N` (where N is the modulus).
* The bitlength of the reduced value is the same as
* that of the modulus (256 bits).
* \param[in] X_limbs The length of \p X in limbs.
*
* \return \c 0 on success.
* \return #MBEDTLS_ERR_ECP_BAD_INPUT_DATA if \p X_limbs is not the
* limb size that sores a 512-bit MPI.
*/
MBEDTLS_STATIC_TESTABLE
int mbedtls_ecp_mod_p256_raw(mbedtls_mpi_uint *X, size_t X_limbs);