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Convert USE_PSA_CRYPTO pk interface to the new PSA EC curve encoding

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This commit is contained in:
Gilles Peskine
2019-12-03 21:19:09 +01:00
parent 33b1c69908
commit 89177e862b
3 changed files with 70 additions and 53 deletions
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6
library/pkwrite.c
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@ -273,18 +273,20 @@ int mbedtls_pk_write_pubkey_der( mbedtls_pk_context *key, unsigned char *buf, si
psa_key_type_t key_type;
psa_key_handle_t handle;
psa_ecc_curve_t curve;
size_t bits;
handle = *((psa_key_handle_t*) key->pk_ctx );
if( PSA_SUCCESS != psa_get_key_attributes( handle, &attributes ) )
return( MBEDTLS_ERR_PK_HW_ACCEL_FAILED );
key_type = psa_get_key_type( &attributes );
bits = psa_get_key_bits( &attributes );
psa_reset_key_attributes( &attributes );
curve = PSA_KEY_TYPE_GET_CURVE( key_type );
curve = PSA_KEY_TYPE_GET_CURVE( key_type ) & 0xff0000;
if( curve == 0 )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );
ret = mbedtls_psa_get_ecc_oid_from_id( curve, &oid, &oid_len );
ret = mbedtls_psa_get_ecc_oid_from_id( curve, bits, &oid, &oid_len );
if( ret != 0 )
return( MBEDTLS_ERR_PK_FEATURE_UNAVAILABLE );