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Add helper function to translate mbedtls cipher type/mode pair to psa: algorithm, key type and key size.

Browse source 
Signed-off-by: Przemyslaw Stekiel <przemyslaw.stekiel@mobica.com>
This commit is contained in:
Przemyslaw Stekiel 2022-01-10 11:55:46 +01:00
parent a9f32fbb21
commit 430f337b49
2 changed files with 161 additions and 0 deletions
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16
library/ssl_misc.h
View file

@ -1274,6 +1274,22 @@ static inline mbedtls_svc_key_id_t mbedtls_ssl_get_opaque_psk(
return( MBEDTLS_SVC_KEY_ID_INIT );
}
/* Corresponding PSA algorithm for MBEDTLS_CIPHER_NULL */
#define MBEDTLS_SSL_NULL_CIPHER 0x04000000
/**
* Translate mbedtls cipher type/mode pair to psa: algorithm, key type and
* key size.
*
* Return PSA_SUCCESS on success or PSA_ERROR_NOT_SUPPORTED if
* conversion is not supported.
*/
psa_status_t mbedtls_cipher_to_psa( mbedtls_cipher_type_t mbedtls_cipher_type,
size_t taglen,
psa_algorithm_t *alg,
psa_key_type_t *key_type,
size_t *key_size );
#endif /* MBEDTLS_USE_PSA_CRYPTO */
#endif /* MBEDTLS_KEY_EXCHANGE_SOME_PSK_ENABLED */

145
library/ssl_tls.c
View file

@ -4006,6 +4006,151 @@ int mbedtls_ssl_conf_psk_opaque( mbedtls_ssl_config *conf,
return( ret );
}
psa_status_t mbedtls_cipher_to_psa( mbedtls_cipher_type_t mbedtls_cipher_type,
size_t taglen,
psa_algorithm_t *alg,
psa_key_type_t *key_type,
size_t *key_size )
{
switch ( mbedtls_cipher_type )
{
case MBEDTLS_CIPHER_AES_128_CBC:
*alg = PSA_ALG_CBC_NO_PADDING;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 128;
break;
case MBEDTLS_CIPHER_AES_128_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 128;
break;
case MBEDTLS_CIPHER_AES_128_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 128;
break;
case MBEDTLS_CIPHER_AES_192_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 192;
break;
case MBEDTLS_CIPHER_AES_192_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 192;
break;
case MBEDTLS_CIPHER_AES_256_CBC:
*alg = PSA_ALG_CBC_NO_PADDING;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 256;
break;
case MBEDTLS_CIPHER_AES_256_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 256;
break;
case MBEDTLS_CIPHER_AES_256_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_AES;
*key_size = 256;
break;
case MBEDTLS_CIPHER_ARIA_128_CBC:
*alg = PSA_ALG_CBC_NO_PADDING;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 128;
break;
case MBEDTLS_CIPHER_ARIA_128_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 128;
break;
case MBEDTLS_CIPHER_ARIA_128_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 128;
break;
case MBEDTLS_CIPHER_ARIA_192_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 192;
break;
case MBEDTLS_CIPHER_ARIA_192_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 192;
break;
case MBEDTLS_CIPHER_ARIA_256_CBC:
*alg = PSA_ALG_CBC_NO_PADDING;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 256;
break;
case MBEDTLS_CIPHER_ARIA_256_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 256;
break;
case MBEDTLS_CIPHER_ARIA_256_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_ARIA;
*key_size = 256;
break;
case MBEDTLS_CIPHER_CAMELLIA_128_CBC:
*alg = PSA_ALG_CBC_NO_PADDING;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 128;
break;
case MBEDTLS_CIPHER_CAMELLIA_128_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 128;
break;
case MBEDTLS_CIPHER_CAMELLIA_128_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 128;
break;
case MBEDTLS_CIPHER_CAMELLIA_192_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 192;
break;
case MBEDTLS_CIPHER_CAMELLIA_192_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 192;
break;
case MBEDTLS_CIPHER_CAMELLIA_256_CBC:
*alg = PSA_ALG_CBC_NO_PADDING;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 256;
break;
case MBEDTLS_CIPHER_CAMELLIA_256_CCM:
*alg = taglen ? PSA_ALG_AEAD_WITH_SHORTENED_TAG( PSA_ALG_CCM, taglen ) : PSA_ALG_CCM;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 256;
break;
case MBEDTLS_CIPHER_CAMELLIA_256_GCM:
*alg = PSA_ALG_GCM;
*key_type = PSA_KEY_TYPE_CAMELLIA;
*key_size = 256;
break;
case MBEDTLS_CIPHER_CHACHA20_POLY1305:
*alg = PSA_ALG_CHACHA20_POLY1305;
*key_type = PSA_KEY_TYPE_CHACHA20;
*key_size = 256;
break;
case MBEDTLS_CIPHER_NULL:
*alg = MBEDTLS_SSL_NULL_CIPHER;
*key_type = 0;
*key_size = 0;
break;
default:
return PSA_ERROR_NOT_SUPPORTED;
}
return PSA_SUCCESS;
}
int mbedtls_ssl_set_hs_psk_opaque( mbedtls_ssl_context *ssl,
mbedtls_svc_key_id_t psk )
{