Add test vectors to the cipher test suite
Ensures the selected cipher/mode/padding is actually used
and padding and tag are actually checked.
diff --git a/tests/suites/test_suite_cipher.function b/tests/suites/test_suite_cipher.function
index 63de2db..9dad06c 100644
--- a/tests/suites/test_suite_cipher.function
+++ b/tests/suites/test_suite_cipher.function
@@ -302,6 +302,73 @@
/* END_CASE */
/* BEGIN_CASE */
+void decrypt_test_vec( int cipher_id, int pad_mode,
+ char *hex_key, char *hex_iv,
+ char *hex_cipher, char *hex_clear,
+ char *hex_ad, char *hex_tag,
+ int finish_result, int tag_result )
+{
+ unsigned char key[100];
+ unsigned char iv[100];
+ unsigned char cipher[100];
+ unsigned char clear[100];
+ unsigned char ad[100];
+ unsigned char tag[100];
+ size_t key_len, iv_len, cipher_len, clear_len, ad_len, tag_len;
+ cipher_context_t ctx;
+ unsigned char output[100];
+ size_t outlen, total_len;
+
+ memset( key, 0x00, sizeof( key ) );
+ memset( iv, 0x00, sizeof( iv ) );
+ memset( cipher, 0x00, sizeof( cipher ) );
+ memset( clear, 0x00, sizeof( clear ) );
+ memset( ad, 0x00, sizeof( ad ) );
+ memset( tag, 0x00, sizeof( tag ) );
+ memset( output, 0x00, sizeof( output ) );
+
+ key_len = unhexify( key, hex_key );
+ iv_len = unhexify( iv, hex_iv );
+ cipher_len = unhexify( cipher, hex_cipher );
+ clear_len = unhexify( clear, hex_clear );
+ ad_len = unhexify( ad, hex_ad );
+ tag_len = unhexify( tag, hex_tag );
+
+ /* Prepare context */
+ TEST_ASSERT( 0 == cipher_init_ctx( &ctx,
+ cipher_info_from_type( cipher_id ) ) );
+ TEST_ASSERT( 0 == cipher_setkey( &ctx, key, 8 * key_len, POLARSSL_DECRYPT ) );
+ if( pad_mode != -1 )
+ TEST_ASSERT( 0 == cipher_set_padding_mode( &ctx, pad_mode ) );
+ TEST_ASSERT( 0 == cipher_set_iv( &ctx, iv, iv_len ) );
+ TEST_ASSERT( 0 == cipher_reset( &ctx ) );
+#if defined(POLARSSL_CIPHER_MODE_AEAD)
+ TEST_ASSERT( 0 == cipher_update_ad( &ctx, ad, ad_len ) );
+#endif /* POLARSSL_CIPHER_MODE_AEAD */
+
+ /* decode buffer and check tag */
+ total_len = 0;
+ TEST_ASSERT( 0 == cipher_update( &ctx, cipher, cipher_len, output, &outlen ) );
+ total_len += outlen;
+ TEST_ASSERT( finish_result == cipher_finish( &ctx, output + outlen,
+ &outlen ) );
+ total_len += outlen;
+#if defined(POLARSSL_CIPHER_MODE_AEAD)
+ TEST_ASSERT( tag_result == cipher_check_tag( &ctx, tag, tag_len ) );
+#endif /* POLARSSL_CIPHER_MODE_AEAD */
+
+ /* check plaintext only if everything went fine */
+ if( 0 == finish_result && 0 == tag_result )
+ {
+ TEST_ASSERT( total_len == clear_len );
+ TEST_ASSERT( 0 == memcmp( output, clear, clear_len ) );
+ }
+
+ cipher_free_ctx( &ctx );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
void set_padding( int cipher_id, int pad_mode, int ret )
{
const cipher_info_t *cipher_info;