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library: Move mbedtls_ecc helper functions to psa_util

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Move the mbedtls_ecc helper functions from psa_core to psa_util.
These files are not implemented as part of the PSA API and should not
be part of the PSA crypto implementation.

Signed-off-by: Joakim Andersson <joakim.andersson@nordicsemi.no>
This commit is contained in:
Joakim Andersson
2023-12-11 21:29:19 +01:00
parent c5b7285da9
commit b349108b99
4 changed files with 224 additions and 222 deletions
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175
library/psa_crypto.c
View File

@ -408,181 +408,6 @@ static void psa_wipe_tag_output_buffer(uint8_t *output_buffer, psa_status_t stat
}
/****************************************************************/
/* Key management */
/****************************************************************/
#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
psa_ecc_family_t mbedtls_ecc_group_to_psa(mbedtls_ecp_group_id grpid,
size_t *bits)
{
switch (grpid) {
#if defined(MBEDTLS_ECP_HAVE_SECP192R1)
case MBEDTLS_ECP_DP_SECP192R1:
*bits = 192;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP224R1)
case MBEDTLS_ECP_DP_SECP224R1:
*bits = 224;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP256R1)
case MBEDTLS_ECP_DP_SECP256R1:
*bits = 256;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP384R1)
case MBEDTLS_ECP_DP_SECP384R1:
*bits = 384;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP521R1)
case MBEDTLS_ECP_DP_SECP521R1:
*bits = 521;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_BP256R1)
case MBEDTLS_ECP_DP_BP256R1:
*bits = 256;
return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_BP384R1)
case MBEDTLS_ECP_DP_BP384R1:
*bits = 384;
return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_BP512R1)
case MBEDTLS_ECP_DP_BP512R1:
*bits = 512;
return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_CURVE25519)
case MBEDTLS_ECP_DP_CURVE25519:
*bits = 255;
return PSA_ECC_FAMILY_MONTGOMERY;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP192K1)
case MBEDTLS_ECP_DP_SECP192K1:
*bits = 192;
return PSA_ECC_FAMILY_SECP_K1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP224K1)
case MBEDTLS_ECP_DP_SECP224K1:
*bits = 224;
return PSA_ECC_FAMILY_SECP_K1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP256K1)
case MBEDTLS_ECP_DP_SECP256K1:
*bits = 256;
return PSA_ECC_FAMILY_SECP_K1;
#endif
#if defined(MBEDTLS_ECP_HAVE_CURVE448)
case MBEDTLS_ECP_DP_CURVE448:
*bits = 448;
return PSA_ECC_FAMILY_MONTGOMERY;
#endif
default:
*bits = 0;
return 0;
}
}
mbedtls_ecp_group_id mbedtls_ecc_group_of_psa(psa_ecc_family_t curve,
size_t bits,
int bits_is_sloppy)
{
switch (curve) {
case PSA_ECC_FAMILY_SECP_R1:
switch (bits) {
#if defined(PSA_WANT_ECC_SECP_R1_192)
case 192:
return MBEDTLS_ECP_DP_SECP192R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_224)
case 224:
return MBEDTLS_ECP_DP_SECP224R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_256)
case 256:
return MBEDTLS_ECP_DP_SECP256R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_384)
case 384:
return MBEDTLS_ECP_DP_SECP384R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_521)
case 521:
return MBEDTLS_ECP_DP_SECP521R1;
case 528:
if (bits_is_sloppy) {
return MBEDTLS_ECP_DP_SECP521R1;
}
break;
#endif
}
break;
case PSA_ECC_FAMILY_BRAINPOOL_P_R1:
switch (bits) {
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
case 256:
return MBEDTLS_ECP_DP_BP256R1;
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
case 384:
return MBEDTLS_ECP_DP_BP384R1;
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512)
case 512:
return MBEDTLS_ECP_DP_BP512R1;
#endif
}
break;
case PSA_ECC_FAMILY_MONTGOMERY:
switch (bits) {
#if defined(PSA_WANT_ECC_MONTGOMERY_255)
case 255:
return MBEDTLS_ECP_DP_CURVE25519;
case 256:
if (bits_is_sloppy) {
return MBEDTLS_ECP_DP_CURVE25519;
}
break;
#endif
#if defined(PSA_WANT_ECC_MONTGOMERY_448)
case 448:
return MBEDTLS_ECP_DP_CURVE448;
#endif
}
break;
case PSA_ECC_FAMILY_SECP_K1:
switch (bits) {
#if defined(PSA_WANT_ECC_SECP_K1_192)
case 192:
return MBEDTLS_ECP_DP_SECP192K1;
#endif
#if defined(PSA_WANT_ECC_SECP_K1_224)
case 224:
return MBEDTLS_ECP_DP_SECP224K1;
#endif
#if defined(PSA_WANT_ECC_SECP_K1_256)
case 256:
return MBEDTLS_ECP_DP_SECP256K1;
#endif
}
break;
}
(void) bits_is_sloppy;
return MBEDTLS_ECP_DP_NONE;
}
#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */
psa_status_t psa_validate_unstructured_key_bit_size(psa_key_type_t type,
size_t bits)
{

174
library/psa_util.c
View File

@ -156,4 +156,178 @@ int psa_pk_status_to_mbedtls(psa_status_t status)
}
}
#endif /* MBEDTLS_PK_C */
/****************************************************************/
/* Key management */
/****************************************************************/
#if defined(PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY)
psa_ecc_family_t mbedtls_ecc_group_to_psa(mbedtls_ecp_group_id grpid,
size_t *bits)
{
switch (grpid) {
#if defined(MBEDTLS_ECP_HAVE_SECP192R1)
case MBEDTLS_ECP_DP_SECP192R1:
*bits = 192;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP224R1)
case MBEDTLS_ECP_DP_SECP224R1:
*bits = 224;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP256R1)
case MBEDTLS_ECP_DP_SECP256R1:
*bits = 256;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP384R1)
case MBEDTLS_ECP_DP_SECP384R1:
*bits = 384;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP521R1)
case MBEDTLS_ECP_DP_SECP521R1:
*bits = 521;
return PSA_ECC_FAMILY_SECP_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_BP256R1)
case MBEDTLS_ECP_DP_BP256R1:
*bits = 256;
return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_BP384R1)
case MBEDTLS_ECP_DP_BP384R1:
*bits = 384;
return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_BP512R1)
case MBEDTLS_ECP_DP_BP512R1:
*bits = 512;
return PSA_ECC_FAMILY_BRAINPOOL_P_R1;
#endif
#if defined(MBEDTLS_ECP_HAVE_CURVE25519)
case MBEDTLS_ECP_DP_CURVE25519:
*bits = 255;
return PSA_ECC_FAMILY_MONTGOMERY;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP192K1)
case MBEDTLS_ECP_DP_SECP192K1:
*bits = 192;
return PSA_ECC_FAMILY_SECP_K1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP224K1)
case MBEDTLS_ECP_DP_SECP224K1:
*bits = 224;
return PSA_ECC_FAMILY_SECP_K1;
#endif
#if defined(MBEDTLS_ECP_HAVE_SECP256K1)
case MBEDTLS_ECP_DP_SECP256K1:
*bits = 256;
return PSA_ECC_FAMILY_SECP_K1;
#endif
#if defined(MBEDTLS_ECP_HAVE_CURVE448)
case MBEDTLS_ECP_DP_CURVE448:
*bits = 448;
return PSA_ECC_FAMILY_MONTGOMERY;
#endif
default:
*bits = 0;
return 0;
}
}
mbedtls_ecp_group_id mbedtls_ecc_group_of_psa(psa_ecc_family_t curve,
size_t bits,
int bits_is_sloppy)
{
switch (curve) {
case PSA_ECC_FAMILY_SECP_R1:
switch (bits) {
#if defined(PSA_WANT_ECC_SECP_R1_192)
case 192:
return MBEDTLS_ECP_DP_SECP192R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_224)
case 224:
return MBEDTLS_ECP_DP_SECP224R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_256)
case 256:
return MBEDTLS_ECP_DP_SECP256R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_384)
case 384:
return MBEDTLS_ECP_DP_SECP384R1;
#endif
#if defined(PSA_WANT_ECC_SECP_R1_521)
case 521:
return MBEDTLS_ECP_DP_SECP521R1;
case 528:
if (bits_is_sloppy) {
return MBEDTLS_ECP_DP_SECP521R1;
}
break;
#endif
}
break;
case PSA_ECC_FAMILY_BRAINPOOL_P_R1:
switch (bits) {
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_256)
case 256:
return MBEDTLS_ECP_DP_BP256R1;
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_384)
case 384:
return MBEDTLS_ECP_DP_BP384R1;
#endif
#if defined(PSA_WANT_ECC_BRAINPOOL_P_R1_512)
case 512:
return MBEDTLS_ECP_DP_BP512R1;
#endif
}
break;
case PSA_ECC_FAMILY_MONTGOMERY:
switch (bits) {
#if defined(PSA_WANT_ECC_MONTGOMERY_255)
case 255:
return MBEDTLS_ECP_DP_CURVE25519;
case 256:
if (bits_is_sloppy) {
return MBEDTLS_ECP_DP_CURVE25519;
}
break;
#endif
#if defined(PSA_WANT_ECC_MONTGOMERY_448)
case 448:
return MBEDTLS_ECP_DP_CURVE448;
#endif
}
break;
case PSA_ECC_FAMILY_SECP_K1:
switch (bits) {
#if defined(PSA_WANT_ECC_SECP_K1_192)
case 192:
return MBEDTLS_ECP_DP_SECP192K1;
#endif
#if defined(PSA_WANT_ECC_SECP_K1_224)
case 224:
return MBEDTLS_ECP_DP_SECP224K1;
#endif
#if defined(PSA_WANT_ECC_SECP_K1_256)
case 256:
return MBEDTLS_ECP_DP_SECP256K1;
#endif
}
break;
}
(void) bits_is_sloppy;
return MBEDTLS_ECP_DP_NONE;
}
#endif /* PSA_WANT_KEY_TYPE_ECC_PUBLIC_KEY */
#endif /* MBEDTLS_PSA_CRYPTO_C */