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Tidy up, remove MPI_CORE(), apply the naming convention, and use the new mbedtls_mpi_core_add()

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Signed-off-by: Tom Cosgrove <tom.cosgrove@arm.com>
This commit is contained in:
Tom Cosgrove
2022-08-24 14:05:26 +01:00
parent c98871339d
commit af7d44b4d2
3 changed files with 41 additions and 42 deletions
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29
library/bignum_core.h
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@@ -277,28 +277,27 @@ int mbedtls_mpi_core_write_be( const mbedtls_mpi_uint *A,
void mbedtls_mpi_core_shift_r( mbedtls_mpi_uint *X, size_t limbs,
size_t count );
#define MPI_CORE(func) mbedtls_mpi_core_ ## func ## _minimal
/**
* \brief Add two known-size large unsigned integers, returning the carry.
* \brief Add two fixed-size large unsigned integers, returning the carry.
*
* Calculate l + r where l and r have the same size.
* This function operates modulo (2^ciL)^n and returns the carry
* Calculates `A + B` where `A` and `B` have the same size.
*
* This function operates modulo 2^(biL*limbs) and returns the carry
* (1 if there was a wraparound, and 0 otherwise).
*
* d may be aliased to l or r.
* \p X may be aliased to \p A or \p B.
*
* \param[out] d The result of the addition.
* \param[in] l The left operand.
* \param[in] r The right operand.
* \param n Number of limbs of \p d, \p l and \p r.
* \param[out] X The result of the addition.
* \param[in] A Little-endian presentation of the left operand.
* \param[in] B Little-endian presentation of the right operand.
* \param limbs Number of limbs of \p X, \p A and \p B.
*
* \return 1 if `l + r >= (2^{ciL})^n`, 0 otherwise.
* \return 1 if `A + B >= 2^(biL*limbs)`, 0 otherwise.
*/
mbedtls_mpi_uint MPI_CORE(add)( mbedtls_mpi_uint *d,
const mbedtls_mpi_uint *l,
const mbedtls_mpi_uint *r,
size_t n );
mbedtls_mpi_uint mbedtls_mpi_core_add( mbedtls_mpi_uint *X,
const mbedtls_mpi_uint *A,
const mbedtls_mpi_uint *B,
size_t limbs );
/**
* \brief Conditional addition of two fixed-size large unsigned integers,