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Merge pull request #6743 from minosgalanakis/bignum/implement_modular_negation

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Bignum: Implement fixed width modular negation
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Manuel Pégourié-Gonnard
2022-12-13 09:54:38 +01:00
committed by GitHub
parent 8a05c069a5 f3abea6641
commit 48232ed2c1
4 changed files with 94 additions and 0 deletions
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17
library/bignum_mod_raw.h
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@@ -278,6 +278,23 @@ int mbedtls_mpi_mod_raw_to_mont_rep( mbedtls_mpi_uint *X,
*/
int mbedtls_mpi_mod_raw_from_mont_rep( mbedtls_mpi_uint *X,
const mbedtls_mpi_mod_modulus *m );
/** \brief Perform fixed width modular negation.
*
* The size of the operation is determined by \p m. \p A must have
* the same number of limbs as \p m.
*
* \p X may be aliased to \p A.
*
* \param[out] X The result of the modular negation.
* This must be initialized.
* \param[in] A Little-endian presentation of the input operand. This
* must be less than or equal to \p m.
* \param[in] m The modulus to use.
*/
void mbedtls_mpi_mod_raw_neg( mbedtls_mpi_uint *X,
const mbedtls_mpi_uint *A,
const mbedtls_mpi_mod_modulus *m);
/* END MERGE SLOT 7 */
/* BEGIN MERGE SLOT 8 */