Files
GmSSL/tools/sm2encrypt.c
2021-08-10 22:50:32 +08:00

112 lines
2.6 KiB
C

/*
* Copyright 2014-2021 The GmSSL Project Authors. 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.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <unistd.h>
#include <gmssl/hex.h>
#include <gmssl/sm2.h>
#include <gmssl/pem.h>
#include <gmssl/pkcs8.h>
#include <gmssl/x509.h>
#include <gmssl/error.h>
int main(int argc, char **argv)
{
int ret;
char *prog = argv[0];
const char *keyfile = NULL;
const char *certfile = NULL;
FILE *keyfp = NULL;
FILE *certfp = NULL;
X509_CERTIFICATE cert;
SM2_KEY key;
uint8_t inbuf[SM2_MAX_PLAINTEXT_SIZE];
ssize_t inlen;
uint8_t outbuf[SM2_MAX_CIPHERTEXT_SIZE];
size_t outlen = sizeof(outbuf);
if (argc < 2) {
bad:
fprintf(stderr, "%s : error options\n", prog);
help:
fprintf(stderr, "usage:\n");
fprintf(stderr, " %s -pubkey key.pem < file\n", prog);
fprintf(stderr, " %s -cert cert.pem < file\n", prog);
fprintf(stderr, "\n");
return 1;
}
argc--;
argv++;
while (argc > 1) {
if (!strcmp(*argv, "-help")) {
goto help;
} else if (!strcmp(*argv, "-pubkey")) {
if (--argc < 1) goto bad;
keyfile = *(++argv);
} else if (!strcmp(*argv, "-cert")) {
if (--argc < 1) goto bad;
certfile = *(++argv);
} else {
goto help;
}
argc--;
argv++;
}
if ((!keyfile && !certfile) || (keyfile && certfile)) {
error_print();
return -1;
}
if (keyfile) {
if (!(keyfp = fopen(keyfile, "r"))) {
error_print();
return -1;
}
if (sm2_public_key_info_from_pem(&key, keyfp) != 1) {
error_print();
return -1;
}
} else {
if (!(certfp = fopen(certfile, "r"))) {
error_print();
return -1;
}
if (x509_certificate_from_pem(&cert, certfp) != 1) {
error_print();
return -1;
}
if (x509_certificate_get_public_key(&cert, &key) != 1) {
error_print();
return -1;
}
}
if ((inlen = read(STDIN_FILENO, inbuf, sizeof(inbuf))) <= 0) {
error_print();
return -1;
}
if (sm2_encrypt(&key, inbuf, inlen, outbuf, &outlen) != 1) {
error_print();
return -1;
}
format_bytes(stdout, 0, 0, "", outbuf, outlen);
return 1;
}