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Add SM4-GCM tests from Wycheproof

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This commit is contained in:
Zhi Guan
2026-06-06 16:19:59 +08:00
parent dbe0251872
commit 56edf865b3
2 changed files with 1368 additions and 0 deletions
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77
tests/sm4_gcmtest.c
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@@ -17,6 +17,7 @@
#include <gmssl/sm4.h>
#include <gmssl/error.h>
#include <gmssl/rand.h>
#include "sm4_gcmtest.h"
static int test_sm4_gcm(void)
@@ -313,6 +314,81 @@ static int test_sm4_gcm_ctx(void)
return 1;
}
static int test_sm4_gcm_has_flag(const TEST_SM4_GCM_VECTOR *tv, const char *flag)
{
return strstr(tv->flags, flag) != NULL;
}
static int test_sm4_gcm_wycheproof(void)
{
size_t i;
for (i = 0; i < sizeof(test_sm4_gcm_vectors)/sizeof(test_sm4_gcm_vectors[0]); i++) {
const TEST_SM4_GCM_VECTOR *tv = &test_sm4_gcm_vectors[i];
SM4_KEY sm4_key;
uint8_t key[16];
uint8_t iv[257];
uint8_t aad[513];
uint8_t msg[513];
uint8_t ct[513];
uint8_t tag[16];
uint8_t out[513];
uint8_t dec[513];
uint8_t mac[16];
size_t keylen, ivlen, aadlen, msglen, ctlen, taglen;
int enc_ret, dec_ret;
if (hex_to_bytes(tv->key, strlen(tv->key), key, &keylen) != 1
|| hex_to_bytes(tv->iv, strlen(tv->iv), iv, &ivlen) != 1
|| hex_to_bytes(tv->aad, strlen(tv->aad), aad, &aadlen) != 1
|| hex_to_bytes(tv->msg, strlen(tv->msg), msg, &msglen) != 1
|| hex_to_bytes(tv->ct, strlen(tv->ct), ct, &ctlen) != 1
|| hex_to_bytes(tv->tag, strlen(tv->tag), tag, &taglen) != 1) {
error_print();
return -1;
}
if (keylen != SM4_KEY_SIZE) {
error_print();
return -1;
}
if (taglen > sizeof(mac)
|| msglen > sizeof(out)
|| ctlen > sizeof(dec)) {
error_print();
return -1;
}
sm4_set_encrypt_key(&sm4_key, key);
enc_ret = sm4_gcm_encrypt(&sm4_key, iv, ivlen, aad, aadlen, msg, msglen, out, taglen, mac);
dec_ret = sm4_gcm_decrypt(&sm4_key, iv, ivlen, aad, aadlen, ct, ctlen, tag, taglen, dec);
if (tv->result == TEST_RESULT_VALID) {
if (test_sm4_gcm_has_flag(tv, "LongIv") && ivlen > SM4_GCM_MAX_IV_SIZE
&& enc_ret != 1 && dec_ret != 1) {
continue;
}
if (enc_ret != 1 || dec_ret != 1
|| ctlen != msglen
|| memcmp(out, ct, ctlen) != 0
|| memcmp(mac, tag, taglen) != 0
|| memcmp(dec, msg, msglen) != 0) {
error_print();
return -1;
}
} else {
if (dec_ret == 1) {
error_print();
return -1;
}
fprintf(stderr, " error output above is part of the negative test\n");
}
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int speed_sm4_gcm_encrypt(void)
{
SM4_KEY sm4_key;
@@ -348,6 +424,7 @@ int main(void)
if (test_sm4_gcm_gbt36624_1() != 1) goto err;
if (test_sm4_gcm_gbt36624_2() != 1) goto err;
if (test_sm4_gcm_ctx() != 1) goto err;
if (test_sm4_gcm_wycheproof() != 1) goto err;
#if ENABLE_TEST_SPEED
if (speed_sm4_gcm_encrypt() != 1) goto err;
#endif