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Fix #1900

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This commit is contained in:
Zhi Guan
2026-06-21 00:01:32 +08:00
parent 1e1822205f
commit 866e3aef67
4 changed files with 48 additions and 8 deletions
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36
tests/sm2_enctest.c
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@@ -113,6 +113,40 @@ static int test_sm2_do_encrypt(void)
return 1;
}
static int test_sm2_do_decrypt_bad_hash_does_not_output_plaintext(void)
{
SM2_KEY sm2_key;
uint8_t plaintext[] = "Hello World!";
SM2_CIPHERTEXT ciphertext;
uint8_t out[SM2_MAX_PLAINTEXT_SIZE];
size_t outlen = sizeof(out);
size_t i;
if (sm2_key_generate(&sm2_key) != 1
|| sm2_do_encrypt(&sm2_key, plaintext, sizeof(plaintext), &ciphertext) != 1) {
error_print();
return -1;
}
ciphertext.hash[0] ^= 0x01;
memset(out, 0xa5, sizeof(out));
if (sm2_do_decrypt(&sm2_key, &ciphertext, out, &outlen) != -1
|| outlen != 0) {
error_print();
return -1;
}
for (i = 0; i < sizeof(out); i++) {
if (out[i] != 0xa5) {
error_print();
return -1;
}
}
printf("%s() ok\n", __FUNCTION__);
return 1;
}
static int test_sm2_do_encrypt_fixlen(void)
{
struct {
@@ -323,6 +357,7 @@ int main(void)
{
if (test_sm2_ciphertext() != 1) goto err;
if (test_sm2_do_encrypt() != 1) goto err;
if (test_sm2_do_decrypt_bad_hash_does_not_output_plaintext() != 1) goto err;
if (test_sm2_do_encrypt_fixlen() != 1) goto err;
if (test_sm2_encrypt() != 1) goto err;
if (test_sm2_encrypt_fixlen() != 1) goto err;
@@ -335,4 +370,3 @@ err:
error_print();
return -1;
}