Add tests for CCM corner cases.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/tests/suites/test_suite_ccm.function b/tests/suites/test_suite_ccm.function
index 028ab89..74893bb 100644
--- a/tests/suites/test_suite_ccm.function
+++ b/tests/suites/test_suite_ccm.function
@@ -540,6 +540,53 @@
/* END_CASE */
/* BEGIN_CASE */
+void mbedtls_ccm_incomplete_ad( int cipher_id, int mode,
+ data_t * key, data_t * iv, data_t* add )
+{
+ mbedtls_ccm_context ctx;
+ uint8_t *output = NULL;
+
+ mbedtls_ccm_init( &ctx );
+ TEST_EQUAL( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ), 0 );
+ TEST_EQUAL( 0, mbedtls_ccm_starts( &ctx, mode, iv->x, iv->len ) );
+ // use hardcoded values for msg length and tag length. They are not a part of this test
+ TEST_EQUAL( 0, mbedtls_ccm_set_lengths( &ctx, add->len, 0, 16 ) );
+
+ TEST_EQUAL( 0, mbedtls_ccm_update_ad( &ctx, add->x, add->len/2) );
+
+ ASSERT_ALLOC( output, 16 );
+ TEST_EQUAL( MBEDTLS_ERR_CCM_BAD_SEQUENCE, mbedtls_ccm_finish( &ctx, output, 16 ) );
+
+exit:
+ mbedtls_free( output );
+ mbedtls_ccm_free( &ctx );
+}
+/* END_CASE */
+
+
+/* BEGIN_CASE */
+void mbedtls_ccm_full_ad_and_overflow( int cipher_id, int mode,
+ data_t * key, data_t * iv,
+ data_t * add )
+{
+ mbedtls_ccm_context ctx;
+
+ mbedtls_ccm_init( &ctx );
+ TEST_EQUAL( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ), 0 );
+ TEST_EQUAL( 0, mbedtls_ccm_starts( &ctx, mode, iv->x, iv->len ) );
+ // use hardcoded values for msg length and tag length. They are not a part of this test
+ TEST_EQUAL( 0, mbedtls_ccm_set_lengths( &ctx, add->len, 16, 16 ) );
+
+ // pass full auth data
+ TEST_EQUAL( 0, mbedtls_ccm_update_ad( &ctx, add->x, add->len) );
+ // pass 1 extra byte
+ TEST_EQUAL( MBEDTLS_ERR_CCM_BAD_SEQUENCE, mbedtls_ccm_update_ad( &ctx, add->x, 1) );
+exit:
+ mbedtls_ccm_free( &ctx );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
void mbedtls_ccm_overflow_update( int cipher_id, int mode,
data_t * key, data_t * msg, data_t * iv,
data_t * add )
@@ -565,3 +612,64 @@
mbedtls_ccm_free( &ctx );
}
/* END_CASE */
+
+/* BEGIN_CASE */
+void mbedtls_ccm_incomplete_update( int cipher_id, int mode,
+ data_t * key, data_t * msg, data_t * iv,
+ data_t * add )
+{
+ mbedtls_ccm_context ctx;
+ uint8_t *output = NULL;
+ size_t olen;
+
+ mbedtls_ccm_init( &ctx );
+ TEST_EQUAL( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ), 0 );
+ TEST_EQUAL( 0, mbedtls_ccm_starts( &ctx, mode, iv->x, iv->len ) );
+ // use hardcoded value for tag length. It is not a part of this test
+ TEST_EQUAL( 0, mbedtls_ccm_set_lengths( &ctx, add->len, msg->len, 16 ) );
+
+ TEST_EQUAL( 0, mbedtls_ccm_update_ad( &ctx, add->x, add->len) );
+
+ ASSERT_ALLOC( output, msg->len );
+ olen = 0xdeadbeef;
+ TEST_EQUAL( 0, mbedtls_ccm_update( &ctx, msg->x, msg->len/2, output, msg->len, &olen ) );
+ mbedtls_free( output );
+ output = NULL;
+
+ ASSERT_ALLOC( output, 16 );
+ TEST_EQUAL( MBEDTLS_ERR_CCM_BAD_SEQUENCE, mbedtls_ccm_finish( &ctx, output, 16 ) );
+
+exit:
+ mbedtls_free( output );
+ mbedtls_ccm_free( &ctx );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void mbedtls_ccm_full_update_and_overflow( int cipher_id, int mode,
+ data_t * key, data_t * msg, data_t * iv,
+ data_t * add )
+{
+ mbedtls_ccm_context ctx;
+ uint8_t *output = NULL;
+ size_t olen;
+
+ mbedtls_ccm_init( &ctx );
+ TEST_EQUAL( mbedtls_ccm_setkey( &ctx, cipher_id, key->x, key->len * 8 ), 0 );
+ TEST_EQUAL( 0, mbedtls_ccm_starts( &ctx, mode, iv->x, iv->len ) );
+ // use hardcoded value for tag length. It is a not a part of this test
+ TEST_EQUAL( 0, mbedtls_ccm_set_lengths( &ctx, add->len, msg->len, 16 ) );
+
+ TEST_EQUAL( 0, mbedtls_ccm_update_ad( &ctx, add->x, add->len) );
+
+ ASSERT_ALLOC( output, msg->len );
+ // pass full text
+ TEST_EQUAL( 0, mbedtls_ccm_update( &ctx, msg->x, msg->len, output, msg->len, &olen ) );
+ // pass 1 extra byte
+ TEST_EQUAL( MBEDTLS_ERR_CCM_BAD_INPUT, \
+ mbedtls_ccm_update( &ctx, msg->x, 1, output, 1, &olen ) );
+exit:
+ mbedtls_free( output );
+ mbedtls_ccm_free( &ctx );
+}
+/* END_CASE */