Add test vectors for XTEA CBC
Generate using an independent implementation found at:
https://code.google.com/p/zzt-code-base/source/browse/trunk/src/python/xtea.py
diff --git a/tests/suites/test_suite_xtea.function b/tests/suites/test_suite_xtea.function
index 091752f..74ca678 100644
--- a/tests/suites/test_suite_xtea.function
+++ b/tests/suites/test_suite_xtea.function
@@ -59,6 +59,68 @@
}
/* END_CASE */
+/* BEGIN_CASE */
+void xtea_encrypt_cbc( char *hex_key_string, char *hex_iv_string,
+ char *hex_src_string, char *hex_dst_string )
+{
+ unsigned char key_str[100];
+ unsigned char src_str[100];
+ unsigned char dst_str[100];
+ unsigned char iv_str[100];
+ unsigned char output[100];
+ size_t len;
+ xtea_context ctx;
+
+ memset(key_str, 0x00, 100);
+ memset(src_str, 0x00, 100);
+ memset(dst_str, 0x00, 100);
+ memset(iv_str, 0x00, 100);
+ memset(output, 0x00, 100);
+
+ unhexify( key_str, hex_key_string );
+ unhexify( iv_str, hex_iv_string );
+ len = unhexify( src_str, hex_src_string );
+
+ xtea_setup( &ctx, key_str );
+ TEST_ASSERT( xtea_crypt_cbc( &ctx, XTEA_ENCRYPT, len, iv_str,
+ src_str, output ) == 0 );
+ hexify( dst_str, output, len );
+
+ TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void xtea_decrypt_cbc( char *hex_key_string, char *hex_iv_string,
+ char *hex_src_string, char *hex_dst_string )
+{
+ unsigned char key_str[100];
+ unsigned char src_str[100];
+ unsigned char dst_str[100];
+ unsigned char iv_str[100];
+ unsigned char output[100];
+ size_t len;
+ xtea_context ctx;
+
+ memset(key_str, 0x00, 100);
+ memset(src_str, 0x00, 100);
+ memset(dst_str, 0x00, 100);
+ memset(iv_str, 0x00, 100);
+ memset(output, 0x00, 100);
+
+ unhexify( key_str, hex_key_string );
+ unhexify( iv_str, hex_iv_string );
+ len = unhexify( src_str, hex_src_string );
+
+ xtea_setup( &ctx, key_str );
+ TEST_ASSERT( xtea_crypt_cbc( &ctx, XTEA_DECRYPT, len, iv_str,
+ src_str, output ) == 0 );
+ hexify( dst_str, output, len );
+
+ TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
+}
+/* END_CASE */
+
/* BEGIN_CASE depends_on:POLARSSL_SELF_TEST */
void xtea_selftest()
{