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ecp_curves: Updated mbedtls_ecp_modulus_setup to use optimised reduction.

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Signed-off-by: Minos Galanakis <minos.galanakis@arm.com>
This commit is contained in:
Minos Galanakis 2023-06-09 15:01:03 +01:00
parent 1d3e332986
commit 65210952ec
1 changed files with 29 additions and 2 deletions
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31
library/ecp_curves.c
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@ -5833,6 +5833,7 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
const mbedtls_ecp_group_id id,
const mbedtls_ecp_modulus_type ctype)
{
int (*modp)(mbedtls_mpi *) = NULL;
mbedtls_mpi_uint *p = NULL;
size_t p_limbs;
@ -5845,6 +5846,9 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP192R1_ENABLED)
case MBEDTLS_ECP_DP_SECP192R1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
#if defined(MBEDTLS_ECP_NIST_OPTIM)
modp = &ecp_mod_p192;
#endif
p = (mbedtls_mpi_uint *) secp192r1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp192r1_p));
} else {
@ -5857,6 +5861,9 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP224R1_ENABLED)
case MBEDTLS_ECP_DP_SECP224R1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
#if defined(MBEDTLS_ECP_NIST_OPTIM)
modp = &ecp_mod_p224;
#endif
p = (mbedtls_mpi_uint *) secp224r1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp224r1_p));
} else {
@ -5869,6 +5876,9 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP256R1_ENABLED)
case MBEDTLS_ECP_DP_SECP256R1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
#if defined(MBEDTLS_ECP_NIST_OPTIM)
modp = &ecp_mod_p256;
#endif
p = (mbedtls_mpi_uint *) secp256r1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp256r1_p));
} else {
@ -5881,6 +5891,9 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP384R1_ENABLED)
case MBEDTLS_ECP_DP_SECP384R1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
#if defined(MBEDTLS_ECP_NIST_OPTIM)
modp = &ecp_mod_p384;
#endif
p = (mbedtls_mpi_uint *) secp384r1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp384r1_p));
} else {
@ -5893,6 +5906,9 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP521R1_ENABLED)
case MBEDTLS_ECP_DP_SECP521R1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
#if defined(MBEDTLS_ECP_NIST_OPTIM)
modp = &ecp_mod_p521;
#endif
p = (mbedtls_mpi_uint *) secp521r1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp521r1_p));
} else {
@ -5941,6 +5957,7 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_CURVE25519_ENABLED)
case MBEDTLS_ECP_DP_CURVE25519:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
modp = &ecp_mod_p255;
p = (mbedtls_mpi_uint *) curve25519_p;
p_limbs = CHARS_TO_LIMBS(sizeof(curve25519_p));
} else {
@ -5953,6 +5970,7 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP192K1_ENABLED)
case MBEDTLS_ECP_DP_SECP192K1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
modp = &ecp_mod_p192;
p = (mbedtls_mpi_uint *) secp192k1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp192k1_p));
} else {
@ -5965,6 +5983,7 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP224K1_ENABLED)
case MBEDTLS_ECP_DP_SECP224K1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
modp = &ecp_mod_p224;
p = (mbedtls_mpi_uint *) secp224k1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp224k1_p));
} else {
@ -5977,6 +5996,7 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_SECP256K1_ENABLED)
case MBEDTLS_ECP_DP_SECP256K1:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
modp = &ecp_mod_p256;
p = (mbedtls_mpi_uint *) secp256k1_p;
p_limbs = CHARS_TO_LIMBS(sizeof(secp256k1_p));
} else {
@ -5989,6 +6009,7 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
#if defined(MBEDTLS_ECP_DP_CURVE448_ENABLED)
case MBEDTLS_ECP_DP_CURVE448:
if (ctype == (mbedtls_ecp_modulus_type) MBEDTLS_ECP_MOD_COORDINATE) {
modp = &ecp_mod_p448;
p = (mbedtls_mpi_uint *) curve448_p;
p_limbs = CHARS_TO_LIMBS(sizeof(curve448_p));
} else {
@ -6003,8 +6024,14 @@ int mbedtls_ecp_modulus_setup(mbedtls_mpi_mod_modulus *N,
return MBEDTLS_ERR_ECP_BAD_INPUT_DATA;
}
if (mbedtls_mpi_mod_modulus_setup(N, p, p_limbs)) {
return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
if (modp != NULL) {
if (mbedtls_mpi_mod_optred_modulus_setup(N, p, p_limbs, modp)) {
return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
}
} else {
if (mbedtls_mpi_mod_modulus_setup(N, p, p_limbs)) {
return MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED;
}
}
return 0;
}