SM4: Add SM4 block cipher to EVP

Reviewed-by: Richard Levitte <levitte@openssl.org>
Reviewed-by: Paul Dale <paul.dale@oracle.com>
(Merged from https://github.com/openssl/openssl/pull/4552)

1 files changed, 86 insertions, 0 deletions

diff --git a/test/sm4_internal_test.c b/test/sm4_internal_test.c
new file mode 100644
index 0000000000..2f3eaecbce
--- /dev/null
+++ b/test/sm4_internal_test.c
@@ -0,0 +1,86 @@
+/*
+ * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2017 Ribose Inc. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (the "License").  You may not use
+ * this file except in compliance with the License.  You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
+
+/*
+ * Internal tests for the SM4 module.
+ */
+
+#include <string.h>
+#include <openssl/opensslconf.h>
+#include "testutil.h"
+
+#ifndef OPENSSL_NO_SM4
+# include "internal/sm4.h"
+
+static int test_sm4_ecb(void)
+{
+    static const uint8_t k[SM4_BLOCK_SIZE] = {
+        0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+        0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
+    };
+
+    static const uint8_t input[SM4_BLOCK_SIZE] = {
+        0x01, 0x23, 0x45, 0x67, 0x89, 0xab, 0xcd, 0xef,
+        0xfe, 0xdc, 0xba, 0x98, 0x76, 0x54, 0x32, 0x10
+    };
+
+    /*
+     * This test vector comes from Example 1 of GB/T 32907-2016,
+     * and described in Internet Draft draft-ribose-cfrg-sm4-02.
+     */
+    static const uint8_t expected[SM4_BLOCK_SIZE] = {
+        0x68, 0x1e, 0xdf, 0x34, 0xd2, 0x06, 0x96, 0x5e,
+        0x86, 0xb3, 0xe9, 0x4f, 0x53, 0x6e, 0x42, 0x46
+    };
+
+    /*
+     * This test vector comes from Example 2 from GB/T 32907-2016,
+     * and described in Internet Draft draft-ribose-cfrg-sm4-02.
+     * After 1,000,000 iterations.
+     */
+    static const uint8_t expected_iter[SM4_BLOCK_SIZE] = {
+        0x59, 0x52, 0x98, 0xc7, 0xc6, 0xfd, 0x27, 0x1f,
+        0x04, 0x02, 0xf8, 0x04, 0xc3, 0x3d, 0x3f, 0x66
+    };
+
+    int i;
+    SM4_KEY key;
+    uint8_t block[SM4_BLOCK_SIZE];
+
+    SM4_set_key(k, &key);
+    memcpy(block, input, SM4_BLOCK_SIZE);
+
+    SM4_encrypt(block, block, &key);
+    if (!TEST_mem_eq(block, SM4_BLOCK_SIZE, expected, SM4_BLOCK_SIZE))
+        return 0;
+
+    for (i = 0; i != 999999; ++i)
+        SM4_encrypt(block, block, &key);
+
+    if (!TEST_mem_eq(block, SM4_BLOCK_SIZE, expected_iter, SM4_BLOCK_SIZE))
+        return 0;
+
+    for (i = 0; i != 1000000; ++i)
+        SM4_decrypt(block, block, &key);
+
+    if (!TEST_mem_eq(block, SM4_BLOCK_SIZE, input, SM4_BLOCK_SIZE))
+        return 0;
+
+    return 1;
+}
+#endif
+
+int setup_tests(void)
+{
+#ifndef OPENSSL_NO_SM4
+    ADD_TEST(test_sm4_ecb);
+#endif
+    return 1;
+}