From 937fddbfcb29fe886dc1a2b7ab3f93165dcf1760 Mon Sep 17 00:00:00 2001
From: Simon Butcher <simon.butcher@arm.com>
Date: Wed, 5 Oct 2016 14:13:31 +0100
Subject: [PATCH] Introduce a CMAC specific test suite

---
 tests/Makefile                        |  5 ++++
 tests/suites/test_suite_cmac.data     | 27 +++++++++++++++++++
 tests/suites/test_suite_cmac.function | 37 +++++++++++++++++++++++++++
 3 files changed, 69 insertions(+)
 create mode 100644 tests/suites/test_suite_cmac.data
 create mode 100644 tests/suites/test_suite_cmac.function

diff --git a/tests/Makefile b/tests/Makefile
index b86702c34..23c68ec86 100644
--- a/tests/Makefile
+++ b/tests/Makefile
@@ -50,6 +50,7 @@ APPS =	test_suite_aes.ecb$(EXEXT)	test_suite_aes.cbc$(EXEXT)	\
 	test_suite_arc4$(EXEXT)		test_suite_asn1write$(EXEXT)	\
 	test_suite_base64$(EXEXT)	test_suite_blowfish$(EXEXT)	\
 	test_suite_camellia$(EXEXT)	test_suite_ccm$(EXEXT)		\
+	test_suite_cmac$(EXEXT)		\
 	test_suite_cipher.aes$(EXEXT)					\
 	test_suite_cipher.arc4$(EXEXT)	test_suite_cipher.ccm$(EXEXT)	\
 	test_suite_cipher.gcm$(EXEXT)					\
@@ -236,6 +237,10 @@ test_suite_ccm$(EXEXT): test_suite_ccm.c $(DEP)
 	echo "  CC    $<"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
 
+test_suite_cmac$(EXEXT): test_suite_cmac.c $(DEP)
+	echo "  CC    $<"
+	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
+
 test_suite_cipher.aes$(EXEXT): test_suite_cipher.aes.c $(DEP)
 	echo "  CC    $<"
 	$(CC) $(LOCAL_CFLAGS) $(CFLAGS) $<	$(LOCAL_LDFLAGS) $(LDFLAGS) -o $@
diff --git a/tests/suites/test_suite_cmac.data b/tests/suites/test_suite_cmac.data
new file mode 100644
index 000000000..a913ffdd8
--- /dev/null
+++ b/tests/suites/test_suite_cmac.data
@@ -0,0 +1,27 @@
+CMAC self test
+mbedtls_cmac_self_test:
+
+CMAC init #1 AES-128: OK
+depends_on:MBEDTLS_AES_C
+mbedtls_cmac_setkey:MBEDTLS_CIPHER_AES_128_ECB:128:0
+
+CMAC init #2 AES-192: OK
+depends_on:MBEDTLS_AES_C
+mbedtls_cmac_setkey:MBEDTLS_CIPHER_AES_192_ECB:192:0
+
+CMAC init #3 AES-256: OK
+depends_on:MBEDTLS_AES_C
+mbedtls_cmac_setkey:MBEDTLS_CIPHER_AES_256_ECB:256:0
+
+CMAC init #4 3DES : OK
+depends_on:MBEDTLS_DES_C
+mbedtls_cmac_setkey:MBEDTLS_CIPHER_DES_EDE3_ECB:192:0
+
+CMAC init #5 AES-224: bad key size
+depends_on:MBEDTLS_AES_C
+mbedtls_cmac_setkey:MBEDTLS_CIPHER_ID_AES:224:MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA
+
+CMAC init #6 Camellia: wrong cipher
+depends_on:MBEDTLS_CAMELLIA_C
+mbedtls_cmac_setkey:MBEDTLS_CIPHER_ID_CAMELLIA:128:MBEDTLS_ERR_CIPHER_BAD_INPUT_DATA
+
diff --git a/tests/suites/test_suite_cmac.function b/tests/suites/test_suite_cmac.function
new file mode 100644
index 000000000..81a5a0aaa
--- /dev/null
+++ b/tests/suites/test_suite_cmac.function
@@ -0,0 +1,37 @@
+/* BEGIN_HEADER */
+#include "mbedtls/cipher.h"
+#include "mbedtls/cmac.h"
+/* END_HEADER */
+
+/* BEGIN_DEPENDENCIES
+ * depends_on:MBEDTLS_CMAC_C
+ * END_DEPENDENCIES
+ */
+
+/* BEGIN_CASE depends_on:MBEDTLS_SELF_TEST */
+void mbedtls_cmac_self_test( )
+{
+    TEST_ASSERT( mbedtls_cmac_self_test( 1 ) == 0 );
+}
+/* END_CASE */
+
+/* BEGIN_CASE */
+void mbedtls_cmac_setkey( int cipher_type, int key_size,
+                          int result )
+{
+    const mbedtls_cipher_info_t *cipher_info;
+    unsigned char key[32];
+    unsigned char buf[16];
+    unsigned char tmp[16];
+
+    memset( key, 0x2A, sizeof( key ) );
+    TEST_ASSERT( (unsigned) key_size <= 8 * sizeof( key ) );
+
+    TEST_ASSERT( ( cipher_info = mbedtls_cipher_info_from_type( cipher_type ) )
+                    != NULL );
+
+    TEST_ASSERT( result == mbedtls_cipher_cmac( cipher_info, key, key_size,
+                                                buf, 16, tmp ) != 0 );
+}
+/* END_CASE */
+