Update SM2 Extensions

Arrange source files

tests/sm2_ringtest.c

@@ -0,0 +1,174 @@
+/*
+ *  Copyright 2014-2022 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 <assert.h>
+#include <gmssl/sm2.h>
+#include <gmssl/sm2_ring.h>
+#include <gmssl/error.h>
+
+
+static int test_sm2_ring_do_sign(void)
+{
+	SM2_KEY sign_key;
+	SM2_POINT public_keys[5];
+	size_t public_keys_count = sizeof(public_keys)/sizeof(public_keys[0]);
+	size_t sign_index, i;
+	uint8_t dgst[32];
+	uint8_t r[32];
+	uint8_t s[sizeof(public_keys)/sizeof(public_keys[0])][32];
+
+	for (sign_index = 0; sign_index < 5; sign_index++) {
+
+		for (i = 0; i < public_keys_count; i++) {
+			SM2_KEY key;
+			sm2_key_generate(&key);
+			memcpy(&public_keys[i], &(key.public_key), sizeof(SM2_POINT));
+
+			if (i == sign_index) {
+				memcpy(&sign_key, &key, sizeof(SM2_KEY));
+			}
+		}
+		if (sm2_ring_do_sign(&sign_key, public_keys, public_keys_count, dgst, r, s) != 1) {
+			error_print();
+			return -1;
+		}
+		if (sm2_ring_do_verify(public_keys, public_keys_count, dgst, r, s) != 1) {
+			error_print();
+			return -1;
+		}
+	}
+
+	printf("%s() ok\n", __FUNCTION__);
+	return 1;
+}
+
+static int test_sm2_ring_sign(void)
+{
+	SM2_KEY sign_key;
+	SM2_POINT public_keys[5];
+	size_t public_keys_count = sizeof(public_keys)/sizeof(public_keys[0]);
+	size_t sign_index = 2, i;
+	uint8_t dgst[32];
+	uint8_t sig[9 + (2 + 33) * (1 + sizeof(public_keys)/sizeof(public_keys[0]))];
+	size_t siglen = 0;
+
+	for (i = 0; i < public_keys_count; i++) {
+		SM2_KEY key;
+		sm2_key_generate(&key);
+		memcpy(&public_keys[i], &(key.public_key), sizeof(SM2_POINT));
+
+		if (i == sign_index) {
+			memcpy(&sign_key, &key, sizeof(SM2_KEY));
+		}
+	}
+	if (sm2_ring_sign(&sign_key, public_keys, public_keys_count, dgst, sig, &siglen) != 1) {
+		error_print();
+		return -1;
+	}
+	if (sm2_ring_verify(public_keys, 5, dgst, sig, siglen) != 1) {
+		error_print();
+		return -1;
+	}
+
+	printf("%s() ok\n", __FUNCTION__);
+	return 1;
+}
+
+static int test_sm2_ring_sign_crosscheck(void)
+{
+	SM2_KEY sign_key;
+	SM2_POINT public_key;
+	uint8_t dgst[32];
+	uint8_t sig[SM2_MAX_SIGNATURE_SIZE];
+	size_t siglen = 0;
+
+	sm2_key_generate(&sign_key);
+	public_key = sign_key.public_key;
+
+	if (sm2_ring_sign(&sign_key, &public_key, 1, dgst, sig, &siglen) != 1) {
+		error_print();
+		return -1;
+	}
+	if (sm2_ring_verify(&public_key, 1, dgst, sig, siglen) != 1) {
+		error_print();
+		return -1;
+	}
+
+	printf("%s() ok\n", __FUNCTION__);
+	return 1;
+}
+
+static int test_sm2_ring_sign_update(void)
+{
+	SM2_KEY keys[5];
+	SM2_RING_SIGN_CTX sign_ctx;
+	SM2_RING_SIGN_CTX verify_ctx;
+	size_t public_keys_count = sizeof(keys)/sizeof(keys[0]);
+	char *id = "Alice";
+	uint8_t msg[128] = {0};
+	uint8_t sig[9 + (2 + 33) * (1 + sizeof(keys)/sizeof(keys[0]))];
+	size_t siglen = 0;
+	size_t i;
+
+	for (i = 0; i < public_keys_count; i++) {
+		sm2_key_generate(&keys[i]);
+	}
+
+	if (sm2_ring_sign_init(&sign_ctx, &keys[0], id, strlen(id)) != 1) {
+		error_print();
+		return -1;
+	}
+	for (i = 1; i < public_keys_count; i++) {
+		if (sm2_ring_sign_add_signer(&sign_ctx, &keys[i]) != 1) {
+			error_print();
+			return -1;
+		}
+	}
+	if (sm2_ring_sign_update(&sign_ctx, msg, 32) != 1
+		|| sm2_ring_sign_update(&sign_ctx, msg + 32, 32) != 1
+		|| sm2_ring_sign_update(&sign_ctx, msg + 64, 64) != 1
+		|| sm2_ring_sign_finish(&sign_ctx, sig, &siglen) != 1) {
+		error_print();
+		return -1;
+	}
+
+	if (sm2_ring_verify_init(&verify_ctx, id, strlen(id)) != 1) {
+		error_print();
+		return -1;
+	}
+	for (i = 0; i < public_keys_count; i++) {
+		if (sm2_ring_verify_add_signer(&verify_ctx, &keys[i]) != 1) {
+			error_print();
+			return -1;
+		}
+	}
+	if (sm2_ring_verify_update(&verify_ctx, msg, sizeof(msg)) != 1) {
+		error_print();
+		return -1;
+	}
+	if (sm2_ring_verify_finish(&verify_ctx, sig, siglen) != 1) {
+		error_print();
+		return -1;
+	}
+
+	printf("%s() ok\n", __FUNCTION__);
+	return 1;
+}
+
+int main(void)
+{
+	if (test_sm2_ring_do_sign() != 1) { error_print(); return -1; }
+	if (test_sm2_ring_sign() != 1) { error_print(); return -1; }
+	if (test_sm2_ring_sign_crosscheck() != 1) { error_print(); return -1; }
+	if (test_sm2_ring_sign_update() != 1) { error_print(); return -1; }
+	return 0;
+}