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pk: add internal helpers for opaque keys

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Signed-off-by: valerio <valerio.setti@nordicsemi.no>
This commit is contained in:
valerio 2023-05-31 12:07:18 +02:00
parent 64e0184a39
commit b727314133
1 changed files with 37 additions and 2 deletions
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39
library/pkwrite.c
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@ -58,7 +58,8 @@
#include "mbedtls/platform.h"
/* Helper for Montgomery curves */
#if defined(MBEDTLS_ECP_LIGHT) && defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
#if defined(MBEDTLS_ECP_LIGHT)
#if defined(MBEDTLS_PK_HAVE_RFC8410_CURVES)
static inline int mbedtls_pk_is_rfc8410(const mbedtls_pk_context *pk)
{
mbedtls_ecp_group_id id = mbedtls_pk_get_group_id(pk);
@ -75,7 +76,41 @@ static inline int mbedtls_pk_is_rfc8410(const mbedtls_pk_context *pk)
#endif
return 0;
}
#endif /* MBEDTLS_ECP_LIGHT && MBEDTLS_PK_HAVE_RFC8410_CURVES */
#endif /* MBEDTLS_PK_HAVE_RFC8410_CURVES */
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* It is assumed that the input key is opaque */
static psa_ecc_family_t pk_get_opaque_ec_family(const mbedtls_pk_context *pk)
{
psa_ecc_family_t ec_family = 0;
psa_key_attributes_t key_attrs = PSA_KEY_ATTRIBUTES_INIT;
if (psa_get_key_attributes(pk->priv_id, &key_attrs) != PSA_SUCCESS) {
return 0;
}
ec_family = PSA_KEY_TYPE_ECC_GET_FAMILY(psa_get_key_type(&key_attrs));
psa_reset_key_attributes(&key_attrs);
return ec_family;
}
#endif /* MBETLS_USE_PSA_CRYPTO */
#endif /* MBEDTLS_ECP_LIGHT */
#if defined(MBEDTLS_USE_PSA_CRYPTO)
/* It is assumed that the input key is opaque */
static psa_key_type_t pk_get_opaque_key_type(const mbedtls_pk_context *pk)
{
psa_key_attributes_t opaque_attrs = PSA_KEY_ATTRIBUTES_INIT;
psa_key_type_t opaque_key_type;
if (psa_get_key_attributes(pk->priv_id, &opaque_attrs) != PSA_SUCCESS) {
return 0;
}
opaque_key_type = psa_get_key_type(&opaque_attrs);
psa_reset_key_attributes(&opaque_attrs);
return opaque_key_type;
}
#endif /* MBETLS_USE_PSA_CRYPTO */
#if defined(MBEDTLS_RSA_C)
/*