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Fix SM4 API bugs and change behavior

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This commit is contained in:
Zhi Guan
2026-06-13 22:14:56 +08:00
parent 8fded4abc7
commit c12edeb7b1
29 changed files with 1281 additions and 212 deletions
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88
tests/sm4_cbc_mactest.c
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@@ -1,5 +1,5 @@
/*
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
* Copyright 2014-2026 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.
@@ -39,18 +39,27 @@ static int test_sm4_cbc_mac(void)
sm4_cbc_encrypt_blocks(&sm4_key, iv, m, sizeof(m)/16, c);
memcpy(mac1, c + sizeof(m) - 16, 16);
sm4_cbc_mac_init(&ctx, key);
if (sm4_cbc_mac_init(&ctx, key) != 1) {
error_print();
return -1;
}
p = m;
len = 0;
left = sizeof(m);
while (left) {
len = left < len ? left : len;
sm4_cbc_mac_update(&ctx, p, len);
if (sm4_cbc_mac_update(&ctx, p, len) != 1) {
error_print();
return -1;
}
p += len;
left -= len;
len++;
}
sm4_cbc_mac_finish(&ctx, mac2);
if (sm4_cbc_mac_finish(&ctx, mac2) != 1) {
error_print();
return -1;
}
if (memcmp(mac1, mac2, 16)) {
error_print();
return -1;
@@ -62,18 +71,27 @@ static int test_sm4_cbc_mac(void)
sm4_cbc_encrypt_blocks(&sm4_key, iv, m, sizeof(m)/16, c);
memcpy(mac1, c + sizeof(m) - 16, 16);
sm4_cbc_mac_init(&ctx, key);
if (sm4_cbc_mac_init(&ctx, key) != 1) {
error_print();
return -1;
}
p = m;
len = 0;
left = sizeof(m) - 1;
while (left) {
len = left < len ? left : len;
sm4_cbc_mac_update(&ctx, p, len);
if (sm4_cbc_mac_update(&ctx, p, len) != 1) {
error_print();
return -1;
}
p += len;
left -= len;
len++;
}
sm4_cbc_mac_finish(&ctx, mac2);
if (sm4_cbc_mac_finish(&ctx, mac2) != 1) {
error_print();
return -1;
}
if (memcmp(mac1, mac2, 16)) {
error_print();
return -1;
@@ -83,8 +101,64 @@ static int test_sm4_cbc_mac(void)
return 1;
}
static int test_sm4_cbc_mac_args(void)
{
SM4_CBC_MAC_CTX ctx;
uint8_t key[16] = {0};
uint8_t data[16] = {0};
uint8_t mac[16];
if (sm4_cbc_mac_init(NULL, key) != -1
|| sm4_cbc_mac_init(&ctx, NULL) != -1) {
error_print();
return -1;
}
if (sm4_cbc_mac_init(&ctx, key) != 1
|| sm4_cbc_mac_update(NULL, data, sizeof(data)) != -1
|| sm4_cbc_mac_update(&ctx, NULL, sizeof(data)) != -1
|| sm4_cbc_mac_update(&ctx, NULL, 0) != 1
|| sm4_cbc_mac_finish(NULL, mac) != -1
|| sm4_cbc_mac_finish(&ctx, NULL) != -1) {
error_print();
return -1;
}
ctx.ivlen = 16;
if (sm4_cbc_mac_update(&ctx, data, sizeof(data)) != -1
|| sm4_cbc_mac_finish(&ctx, mac) != -1) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_sm4_cbc_mac_finish_repeat(void)
{
SM4_CBC_MAC_CTX ctx;
uint8_t key[16] = {0};
uint8_t data[15] = {0};
uint8_t mac1[16];
uint8_t mac2[16];
if (sm4_cbc_mac_init(&ctx, key) != 1
|| sm4_cbc_mac_update(&ctx, data, sizeof(data)) != 1
|| sm4_cbc_mac_finish(&ctx, mac1) != 1
|| sm4_cbc_mac_finish(&ctx, mac2) != 1
|| memcmp(mac1, mac2, sizeof(mac1)) != 0) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
int main(void)
{
if (test_sm4_cbc_mac() != 1) { error_print(); return -1; }
if (test_sm4_cbc_mac_args() != 1) { error_print(); return -1; }
if (test_sm4_cbc_mac_finish_repeat() != 1) { error_print(); return -1; }
return 0;
}