Make cipher functions static in cipher.c
Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
diff --git a/library/cipher.c b/library/cipher.c
index 2a8e257..252ac09 100644
--- a/library/cipher.c
+++ b/library/cipher.c
@@ -144,6 +144,85 @@
return NULL;
}
+#if defined(MBEDTLS_USE_PSA_CRYPTO) && !defined(MBEDTLS_DEPRECATED_REMOVED)
+static inline psa_key_type_t mbedtls_psa_translate_cipher_type(
+ mbedtls_cipher_type_t cipher)
+{
+ switch (cipher) {
+ case MBEDTLS_CIPHER_AES_128_CCM:
+ case MBEDTLS_CIPHER_AES_192_CCM:
+ case MBEDTLS_CIPHER_AES_256_CCM:
+ case MBEDTLS_CIPHER_AES_128_CCM_STAR_NO_TAG:
+ case MBEDTLS_CIPHER_AES_192_CCM_STAR_NO_TAG:
+ case MBEDTLS_CIPHER_AES_256_CCM_STAR_NO_TAG:
+ case MBEDTLS_CIPHER_AES_128_GCM:
+ case MBEDTLS_CIPHER_AES_192_GCM:
+ case MBEDTLS_CIPHER_AES_256_GCM:
+ case MBEDTLS_CIPHER_AES_128_CBC:
+ case MBEDTLS_CIPHER_AES_192_CBC:
+ case MBEDTLS_CIPHER_AES_256_CBC:
+ case MBEDTLS_CIPHER_AES_128_ECB:
+ case MBEDTLS_CIPHER_AES_192_ECB:
+ case MBEDTLS_CIPHER_AES_256_ECB:
+ return PSA_KEY_TYPE_AES;
+
+ /* ARIA not yet supported in PSA. */
+ /* case MBEDTLS_CIPHER_ARIA_128_CCM:
+ case MBEDTLS_CIPHER_ARIA_192_CCM:
+ case MBEDTLS_CIPHER_ARIA_256_CCM:
+ case MBEDTLS_CIPHER_ARIA_128_CCM_STAR_NO_TAG:
+ case MBEDTLS_CIPHER_ARIA_192_CCM_STAR_NO_TAG:
+ case MBEDTLS_CIPHER_ARIA_256_CCM_STAR_NO_TAG:
+ case MBEDTLS_CIPHER_ARIA_128_GCM:
+ case MBEDTLS_CIPHER_ARIA_192_GCM:
+ case MBEDTLS_CIPHER_ARIA_256_GCM:
+ case MBEDTLS_CIPHER_ARIA_128_CBC:
+ case MBEDTLS_CIPHER_ARIA_192_CBC:
+ case MBEDTLS_CIPHER_ARIA_256_CBC:
+ return( PSA_KEY_TYPE_ARIA ); */
+
+ default:
+ return 0;
+ }
+}
+
+static inline psa_algorithm_t mbedtls_psa_translate_cipher_mode(
+ mbedtls_cipher_mode_t mode, size_t taglen)
+{
+ switch (mode) {
+ case MBEDTLS_MODE_ECB:
+ return PSA_ALG_ECB_NO_PADDING;
+ case MBEDTLS_MODE_GCM:
+ return PSA_ALG_AEAD_WITH_SHORTENED_TAG(PSA_ALG_GCM, taglen);
+ case MBEDTLS_MODE_CCM:
+ return PSA_ALG_AEAD_WITH_SHORTENED_TAG(PSA_ALG_CCM, taglen);
+ case MBEDTLS_MODE_CCM_STAR_NO_TAG:
+ return PSA_ALG_CCM_STAR_NO_TAG;
+ case MBEDTLS_MODE_CBC:
+ if (taglen == 0) {
+ return PSA_ALG_CBC_NO_PADDING;
+ } else {
+ return 0;
+ }
+ default:
+ return 0;
+ }
+}
+
+static inline psa_key_usage_t mbedtls_psa_translate_cipher_operation(
+ mbedtls_operation_t op)
+{
+ switch (op) {
+ case MBEDTLS_ENCRYPT:
+ return PSA_KEY_USAGE_ENCRYPT;
+ case MBEDTLS_DECRYPT:
+ return PSA_KEY_USAGE_DECRYPT;
+ default:
+ return 0;
+ }
+}
+#endif /* MBEDTLS_USE_PSA_CRYPTO && !MBEDTLS_DEPRECATED_REMOVED */
+
void mbedtls_cipher_init(mbedtls_cipher_context_t *ctx)
{
memset(ctx, 0, sizeof(mbedtls_cipher_context_t));