Diff: tests/suites/test_suite_gcm.function

Revision:

0:cdf462088d13

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/tests/suites/test_suite_gcm.function	Thu Jan 05 00:18:44 2017 +0000
@@ -0,0 +1,124 @@
+/* BEGIN_HEADER */
+#include "mbedtls/gcm.h"
+/* END_HEADER */
+
+/* BEGIN_DEPENDENCIES
+ * depends_on:MBEDTLS_GCM_C
+ * END_DEPENDENCIES
+ */
+
+/* BEGIN_CASE */
+void gcm_encrypt_and_tag( int cipher_id,
+                          char *hex_key_string, char *hex_src_string,
+                          char *hex_iv_string, char *hex_add_string,
+                          char *hex_dst_string, int tag_len_bits,
+                          char *hex_tag_string, int  init_result )
+{
+    unsigned char key_str[128];
+    unsigned char src_str[128];
+    unsigned char dst_str[257];
+    unsigned char iv_str[128];
+    unsigned char add_str[128];
+    unsigned char tag_str[128];
+    unsigned char output[128];
+    unsigned char tag_output[16];
+    mbedtls_gcm_context ctx;
+    unsigned int key_len;
+    size_t pt_len, iv_len, add_len, tag_len = tag_len_bits / 8;
+
+    mbedtls_gcm_init( &ctx );
+
+    memset(key_str, 0x00, 128);
+    memset(src_str, 0x00, 128);
+    memset(dst_str, 0x00, 257);
+    memset(iv_str, 0x00, 128);
+    memset(add_str, 0x00, 128);
+    memset(tag_str, 0x00, 128);
+    memset(output, 0x00, 128);
+    memset(tag_output, 0x00, 16);
+
+    key_len = unhexify( key_str, hex_key_string );
+    pt_len = unhexify( src_str, hex_src_string );
+    iv_len = unhexify( iv_str, hex_iv_string );
+    add_len = unhexify( add_str, hex_add_string );
+
+    TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str, key_len * 8 ) == init_result );
+    if( init_result == 0 )
+    {
+        TEST_ASSERT( mbedtls_gcm_crypt_and_tag( &ctx, MBEDTLS_GCM_ENCRYPT, pt_len, iv_str, iv_len, add_str, add_len, src_str, output, tag_len, tag_output ) == 0 );
+        hexify( dst_str, output, pt_len );
+        hexify( tag_str, tag_output, tag_len );
+
+        TEST_ASSERT( strcmp( (char *) dst_str, hex_dst_string ) == 0 );
+        TEST_ASSERT( strcmp( (char *) tag_str, hex_tag_string ) == 0 );
+    }
+
+exit:
+    mbedtls_gcm_free( &ctx );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void gcm_decrypt_and_verify( int cipher_id,
+                             char *hex_key_string, char *hex_src_string,
+                             char *hex_iv_string, char *hex_add_string,
+                             int tag_len_bits, char *hex_tag_string,
+                             char *pt_result, int init_result )
+{
+    unsigned char key_str[128];
+    unsigned char src_str[128];
+    unsigned char dst_str[257];
+    unsigned char iv_str[128];
+    unsigned char add_str[128];
+    unsigned char tag_str[128];
+    unsigned char output[128];
+    mbedtls_gcm_context ctx;
+    unsigned int key_len;
+    size_t pt_len, iv_len, add_len, tag_len = tag_len_bits / 8;
+    int ret;
+
+    mbedtls_gcm_init( &ctx );
+
+    memset(key_str, 0x00, 128);
+    memset(src_str, 0x00, 128);
+    memset(dst_str, 0x00, 257);
+    memset(iv_str, 0x00, 128);
+    memset(add_str, 0x00, 128);
+    memset(tag_str, 0x00, 128);
+    memset(output, 0x00, 128);
+
+    key_len = unhexify( key_str, hex_key_string );
+    pt_len = unhexify( src_str, hex_src_string );
+    iv_len = unhexify( iv_str, hex_iv_string );
+    add_len = unhexify( add_str, hex_add_string );
+    unhexify( tag_str, hex_tag_string );
+
+    TEST_ASSERT( mbedtls_gcm_setkey( &ctx, cipher_id, key_str, key_len * 8 ) == init_result );
+    if( init_result == 0 )
+    {
+        ret = mbedtls_gcm_auth_decrypt( &ctx, pt_len, iv_str, iv_len, add_str, add_len, tag_str, tag_len, src_str, output );
+
+        if( strcmp( "FAIL", pt_result ) == 0 )
+        {
+            TEST_ASSERT( ret == MBEDTLS_ERR_GCM_AUTH_FAILED );
+        }
+        else
+        {
+            TEST_ASSERT( ret == 0 );
+            hexify( dst_str, output, pt_len );
+
+            TEST_ASSERT( strcmp( (char *) dst_str, pt_result ) == 0 );
+        }
+    }
+
+exit:
+    mbedtls_gcm_free( &ctx );
+}
+/* END_CASE */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
+void gcm_selftest()
+{
+    TEST_ASSERT( mbedtls_gcm_self_test( 1 ) == 0 );
+}
+/* END_CASE */