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Update demos

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This commit is contained in:
Zhi Guan
2023-02-07 14:57:17 +08:00
parent 92e27087a9
commit d7fcc6f457
9 changed files with 90 additions and 64 deletions
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33
src/sm2_lib.c
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@@ -733,15 +733,27 @@ int sm2_ciphertext_from_der(SM2_CIPHERTEXT *C, const uint8_t **in, size_t *inlen
return ret;
}
if (asn1_integer_from_der(&x, &xlen, &d, &dlen) != 1
|| asn1_integer_from_der(&y, &ylen, &d, &dlen) != 1
|| asn1_octet_string_from_der(&hash, &hashlen, &d, &dlen) != 1
|| asn1_octet_string_from_der(&c, &clen, &d, &dlen) != 1
|| asn1_length_le(xlen, 32) != 1
|| asn1_length_le(ylen, 32) != 1
|| asn1_check(hashlen == 32) != 1
|| asn1_length_le(clen, SM2_MAX_PLAINTEXT_SIZE) != 1
|| asn1_length_is_zero(clen) == 1
|| asn1_length_is_zero(dlen) != 1) {
|| asn1_length_le(xlen, 32) != 1) {
error_print();
return -1;
}
if (asn1_integer_from_der(&y, &ylen, &d, &dlen) != 1
|| asn1_length_le(ylen, 32) != 1) {
error_print();
return -1;
}
if (asn1_octet_string_from_der(&hash, &hashlen, &d, &dlen) != 1
|| asn1_check(hashlen == 32) != 1) {
error_print();
return -1;
}
if (asn1_octet_string_from_der(&c, &clen, &d, &dlen) != 1
// || asn1_length_is_zero(clen) == 1
|| asn1_length_le(clen, SM2_MAX_PLAINTEXT_SIZE) != 1) {
error_print();
return -1;
}
if (asn1_length_is_zero(dlen) != 1) {
error_print();
return -1;
}
@@ -818,7 +830,8 @@ int sm2_decrypt(const SM2_KEY *key, const uint8_t *in, size_t inlen, uint8_t *ou
return -1;
}
if (sm2_ciphertext_from_der(&C, &in, &inlen) != 1
|| asn1_length_is_zero(inlen) != 1) {
|| asn1_length_is_zero(inlen) != 1
) {
error_print();
return -1;
}