Add more SM4 test vectors

SM4 pass openssl and other known test vectors. SM4-GCM and SM4-XTS only support the GB/T GF(2^128) encoding standard.

tests/rdrandtest.c

@@ -0,0 +1,63 @@
+/*
+ *  Copyright 2014-2024 The GmSSL Project. All Rights Reserved.
+ *
+ *  Licensed under the Apache License, Version 2.0 (the License); you may
+ *  not use this file except in compliance with the License.
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ */
+
+
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <gmssl/rdrand.h>
+#include <gmssl/error.h>
+
+
+int test_rdrand(void)
+{
+	const uint8_t zeros[32] = {0};
+	uint8_t buf[32] = {0};
+
+	if (rdrand_bytes(buf, sizeof(buf)) != 1) {
+		error_print();
+		return -1;
+	}
+	if (memcmp(buf, zeros, sizeof(zeros)) == 0) {
+		error_print();
+		return -1;
+	}
+
+	printf("%s() ok\n", __FUNCTION__);
+	return 1;
+}
+
+int test_rdseed(void)
+{
+	const uint8_t zeros[32] = {0};
+	uint8_t buf[32] = {0};
+
+	if (rdseed_bytes(buf, sizeof(buf)) != 1) {
+		error_print();
+		return -1;
+	}
+	if (memcmp(buf, zeros, sizeof(zeros)) == 0) {
+		error_print();
+		return -1;
+	}
+
+	printf("%s() ok\n", __FUNCTION__);
+	return 1;
+}
+
+int main(void)
+{
+	if (test_rdrand() != 1) goto err;
+	if (test_rdseed() != 1) goto err;
+	printf("%s all tests passed\n", __FILE__);
+	return 0;
+err:
+	error_print();
+	return 1;
+}