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Enable curve 448 to be tested

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Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2023-04-23 23:18:50 +01:00
parent 91a618375a
commit 47a3c82118
2 changed files with 16 additions and 1 deletions
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10
library/ecp_curves.c
View file

@ -4605,6 +4605,8 @@ static int ecp_mod_p255(mbedtls_mpi *);
#endif
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
static int ecp_mod_p448(mbedtls_mpi *);
MBEDTLS_STATIC_TESTABLE
int mbedtls_ecp_mod_p448(mbedtls_mpi *);
#endif
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
static int ecp_mod_p192k1(mbedtls_mpi *);
@ -5449,6 +5451,11 @@ static int ecp_mod_p255(mbedtls_mpi *N)
#define P224_WIDTH_MAX DIV_ROUND_UP(28, sizeof(mbedtls_mpi_uint))
#define P224_UNUSED_BITS ((P224_WIDTH_MAX * sizeof(mbedtls_mpi_uint) * 8) - 224)
static int ecp_mod_p448(mbedtls_mpi *N)
{
return mbedtls_ecp_mod_p448(N);
}
/*
* Fast quasi-reduction modulo p448 = 2^448 - 2^224 - 1
* Write N as A0 + 2^448 A1 and A1 as B0 + 2^224 B1, and return
@ -5460,7 +5467,8 @@ static int ecp_mod_p255(mbedtls_mpi *N)
* but for 64-bit targets it should use half the number of operations if we do
* the reduction with 224-bit limbs, since mpi_add_mpi will then use 64-bit adds.
*/
static int ecp_mod_p448(mbedtls_mpi *N)
MBEDTLS_STATIC_TESTABLE
int mbedtls_ecp_mod_p448(mbedtls_mpi *N)
{
int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
size_t i;

7
library/ecp_invasive.h
View file

@ -193,6 +193,13 @@ int mbedtls_ecp_mod_p256k1(mbedtls_mpi *N);
#endif /* MBEDTLS_ECP_DP_SECP256K1_ENABLED */
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
MBEDTLS_STATIC_TESTABLE
int mbedtls_ecp_mod_p448(mbedtls_mpi *N);
#endif /* MBEDTLS_ECP_DP_CURVE448_ENABLED */
/** Initialise a modulus with hard-coded const curve data.
*
* \note The caller is responsible for the \p N modulus' memory.