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Update SM2

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This commit is contained in:
Zhi Guan
2024-03-10 22:34:43 +08:00
parent cfdcd0c0e3
commit 33baa3df92
15 changed files with 2410 additions and 268 deletions
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114
tests/sm2_enctest.c
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@@ -16,88 +16,52 @@
#include <gmssl/sm2.h>
#include <gmssl/pkcs8.h>
// 由于当前Ciphertext中椭圆曲线点数据不正确，因此无法通过测试
// 应该整理出不同编码长度的椭圆曲线点，可以由x求出y
static int test_sm2_ciphertext(void)
{
struct {
char *label;
size_t ciphertext_size;
} tests[] = {
{ "null ciphertext", 0 },
{ "min ciphertext size", SM2_MIN_PLAINTEXT_SIZE },
{ "max ciphertext size", SM2_MAX_PLAINTEXT_SIZE },
};
SM2_CIPHERTEXT C;
SM2_KEY sm2_key;
uint8_t buf[1024];
uint8_t *p = buf;
const uint8_t *cp = buf;
size_t len = 0;
size_t i;
memset(&C, 0, sizeof(SM2_CIPHERTEXT));
rand_bytes(C.hash, 32);
rand_bytes(C.ciphertext, SM2_MAX_PLAINTEXT_SIZE);
cp = p = buf; len = 0;
if (sm2_ciphertext_to_der(&C, &p, &len) != 1) {
error_print();
return -1;
}
format_print(stderr, 0, 4, "SM2_NULL_CIPHERTEXT_SIZE: %zu\n", len);
format_bytes(stderr, 0, 4, "", buf, len);
for (i = 0; i < sizeof(tests)/sizeof(tests[0]); i++) {
uint8_t *p = buf;
const uint8_t *cp = buf;
size_t len = 0;
if (sm2_ciphertext_from_der(&C, &cp, &len) != 1
|| asn1_length_is_zero(len) != 1) {
error_print();
return -1;
}
if (sm2_key_generate(&sm2_key) != 1) {
error_print();
return -1;
}
C.point = sm2_key.public_key;
C.ciphertext_size = tests[i].ciphertext_size;
if (sm2_ciphertext_to_der(&C, &p, &len) != 1) {
error_print();
return -1;
}
// {0, 0, Hash, MinLen}
C.ciphertext_size = SM2_MIN_PLAINTEXT_SIZE;
cp = p = buf; len = 0;
if (sm2_ciphertext_to_der(&C, &p, &len) != 1) {
error_print();
return -1;
}
format_print(stderr, 0, 4, "SM2_MIN_PLAINTEXT_SIZE: %zu\n", SM2_MIN_PLAINTEXT_SIZE);
format_print(stderr, 0, 4, "SM2_MIN_CIPHERTEXT_SIZE: %zu\n", len);
format_bytes(stderr, 0, 4, "", buf, len);
if (len != SM2_MIN_CIPHERTEXT_SIZE) {
error_print();
return -1;
}
if (sm2_ciphertext_from_der(&C, &cp, &len) != 1
|| asn1_length_is_zero(len) != 1) {
error_print();
return -1;
}
printf("Plaintext size = %zu, SM2Ciphertext DER size %zu\n", tests[i].ciphertext_size, len);
// { 33, 33, Hash, NULL }
memset(&C, 0x80, sizeof(SM2_POINT));
cp = p = buf; len = 0;
if (sm2_ciphertext_to_der(&C, &p, &len) != 1) {
error_print();
return -1;
}
format_print(stderr, 0, 4, "ciphertext len: %zu\n", len);
format_bytes(stderr, 0, 4, "", buf, len);
if (sm2_ciphertext_from_der(&C, &cp, &len) != 1
|| asn1_length_is_zero(len) != 1) {
error_print();
return -1;
}
if (sm2_ciphertext_from_der(&C, &cp, &len) != 1
|| asn1_length_is_zero(len) != 1) {
error_print();
return -1;
}
// { 33, 33, Hash, MaxLen }
C.ciphertext_size = SM2_MAX_PLAINTEXT_SIZE;//SM2_MAX_PLAINTEXT_SIZE;
cp = p = buf; len = 0;
if (sm2_ciphertext_to_der(&C, &p, &len) != 1) {
error_print();
return -1;
}
format_print(stderr, 0, 4, "SM2_MAX_PLAINTEXT_SIZE: %zu\n", SM2_MAX_PLAINTEXT_SIZE);
format_print(stderr, 0, 4, "SM2_MAX_CIPHERTEXT_SIZE: %zu\n", len);
format_bytes(stderr, 0, 4, "", buf, len);
if (len != SM2_MAX_CIPHERTEXT_SIZE) {
error_print();
return -1;
}
if (sm2_ciphertext_from_der(&C, &cp, &len) != 1
|| asn1_length_is_zero(len) != 1) {
error_print();
return -1;
}
printf("%s() ok\n", __FUNCTION__);
@@ -265,14 +229,6 @@ static int test_sm2_encrypt_fixlen(void)
}
// 应该生成不同情况下的密文！
static int test_sm2_encrypt(void)
{
SM2_KEY sm2_key;
@@ -327,7 +283,7 @@ static int test_sm2_encrypt(void)
int main(void)
{
//if (test_sm2_ciphertext() != 1) goto err; // 需要正确的Ciphertext数据
if (test_sm2_ciphertext() != 1) goto err;
if (test_sm2_do_encrypt() != 1) goto err;
if (test_sm2_do_encrypt_fixlen() != 1) goto err;
if (test_sm2_encrypt() != 1) goto err;