mirror of
https://github.com/guanzhi/GmSSL.git
synced 2026-05-07 00:46:17 +08:00
Simon
@@ -1,5 +1,5 @@
|
||||
/*
|
||||
* Copyright 2014-2022 The GmSSL Project. All Rights Reserved.
|
||||
* Copyright 2022 The GmSSL Project. 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.
|
||||
@@ -7,227 +7,226 @@
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*/
|
||||
|
||||
|
||||
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/stat.h>
|
||||
#include <gmssl/cms.h>
|
||||
#include <gmssl/x509.h>
|
||||
#include <gmssl/rand.h>
|
||||
|
||||
|
||||
/*
|
||||
|
||||
签名的时候要提供签名者的证书，并且提供签名私钥
|
||||
但是验证的时候假定CMS中已经包含签名者的证书了，但是我们要提供CA证书库
|
||||
|
||||
加密的时候要指定接收者的证书，并且可以有多个接收者
|
||||
解密的时候只提供一个解密私钥，但是最好配合解密者的证书，从这个证书中找到解密者的名字
|
||||
|
||||
如果即加密又签名，那么输出的是SignedAndEnveloped
|
||||
|
||||
CMS有PEM吗？
|
||||
|
||||
cms -encrypt -rcpt a.pem -rcpt b.pem -rcpt c.pem -in file -sign -signcert a.pem -signcert b.pem
|
||||
-rcptcert -rcpt_cert -sign_cert b.pem -signkey
|
||||
|
||||
首先接收者可以有多个证书
|
||||
|
||||
这里面有个问题，因为我们要输出一个加密的对象，因此我们必须把输入的内容读取进来。
|
||||
|
||||
|
||||
EnvelopedData 是一个封装的SEQUENCE中，因此必须读取所有的内容。
|
||||
如果是一个文件，就需要读取所有的文件内容，如果是一个stream ,也需要读取完整的内容到一个足够大的buffer中，如何设置这个buffer的大小呢
|
||||
|
||||
|
||||
|
||||
对于输入文件，如果输入有文件名的话，可以直接通过stat获取文件长度
|
||||
但是如果对于stream的话，实际上我们是没有办法获得输入长度的，那么就直接准备一个buffer好了。
|
||||
不要给自己找麻烦了，直接只支持文件输入吧
|
||||
encrypt
|
||||
|
||||
*/
|
||||
|
||||
static const char *options = "-encrypt (-rcptcert pem)* -in file -out file";
|
||||
|
||||
|
||||
static int get_files_size(int argc, char **argv, const char *option, size_t *len)
|
||||
{
|
||||
char *prog = argv[0];
|
||||
char *file = NULL;
|
||||
FILE *fp = NULL;
|
||||
struct stat st;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
*len = 0;
|
||||
while (argc > 1) {
|
||||
if (!strcmp(*argv, option)) {
|
||||
if (--argc < 1) {
|
||||
fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
|
||||
return -1;
|
||||
}
|
||||
file = *(++argv);
|
||||
if (!(fp = fopen(file, "r"))) {
|
||||
fprintf(stderr, "%s: open '%s' failed : %s\n", prog, file, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
if (fstat(fileno(fp), &st) < 0) {
|
||||
fprintf(stderr, "%s: access '%s' failed : %s\n", prog, file, strerror(errno));
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
*len += st.st_size;
|
||||
fclose(fp);
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int cmsencrypt_main(int argc, char **argv)
|
||||
{
|
||||
int ret = 1;
|
||||
char *prog = argv[0];
|
||||
int op = 0;
|
||||
char *infile = NULL;
|
||||
char *outfile = NULL;
|
||||
FILE *infp = stdin;
|
||||
FILE *outfp = stdout;
|
||||
uint8_t *rcpt_certs = NULL;
|
||||
size_t rcpt_certs_len;
|
||||
uint8_t key[16];
|
||||
uint8_t iv[16];
|
||||
uint8_t *inbuf = NULL;
|
||||
size_t inlen;
|
||||
uint8_t *cms = NULL;
|
||||
size_t cmslen;
|
||||
uint8_t *cert;
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stderr, "usage: %s %s\n", prog, options);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// 预先统计证书缓冲大小和输入大小
|
||||
if (get_files_size(argc, argv, "-rcptcert", &rcpt_certs_len) != 1) {
|
||||
goto end;
|
||||
}
|
||||
if (rcpt_certs_len <= 0) {
|
||||
fprintf(stderr, "%s: invalid cert length\n", prog);
|
||||
goto end;
|
||||
}
|
||||
rcpt_certs_len = (rcpt_certs_len * 3)/4;
|
||||
if (!(rcpt_certs = malloc(rcpt_certs_len))) {
|
||||
fprintf(stderr, "%s: malloc failure\n", prog);
|
||||
goto end;
|
||||
}
|
||||
cert = rcpt_certs;
|
||||
|
||||
if (get_files_size(argc, argv, "-in", &inlen) != 1) {
|
||||
goto end;
|
||||
}
|
||||
if (inlen <= 0) {
|
||||
fprintf(stderr, "%s: invalid input length\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (!(inbuf = malloc(inlen))) {
|
||||
fprintf(stderr, "%s: %s\n", prog, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
while (argc > 1) {
|
||||
if (!strcmp(*argv, "-help")) {
|
||||
printf("usage: %s %s\n", prog, options);
|
||||
ret = 0;
|
||||
goto end;
|
||||
} else if (!strcmp(*argv, "-rcptcert")) {
|
||||
char *certfile;
|
||||
FILE *certfp;
|
||||
size_t certlen;
|
||||
if (--argc < 1) goto bad;
|
||||
certfile = *(++argv);
|
||||
if (!(certfp = fopen(certfile, "r"))) {
|
||||
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, certfile, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
if (x509_cert_from_pem(cert, &certlen, rcpt_certs_len, certfp) != 1) {
|
||||
fprintf(stderr, "%s: error\n", prog);
|
||||
fclose(certfp);
|
||||
goto end;
|
||||
}
|
||||
cert += certlen;
|
||||
fclose(certfp);
|
||||
} else if (!strcmp(*argv, "-in")) {
|
||||
if (--argc < 1) goto bad;
|
||||
infile = *(++argv);
|
||||
if (!(infp = fopen(infile, "r"))) {
|
||||
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
if ((inlen = fread(inbuf, 1, inlen, infp)) <= 0) {
|
||||
fprintf(stderr, "%s: read data error: %s\n", prog, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
} else if (!strcmp(*argv, "-out")) {
|
||||
if (--argc < 1) goto bad;
|
||||
outfile = *(++argv);
|
||||
if (!(outfp = fopen(outfile, "w"))) {
|
||||
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
} else {
|
||||
fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
|
||||
goto end;
|
||||
bad:
|
||||
fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
|
||||
goto end;
|
||||
}
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
rcpt_certs_len = cert - rcpt_certs;
|
||||
|
||||
if (rand_bytes(key, sizeof(key)) != 1
|
||||
|| rand_bytes(iv, sizeof(iv)) != 1
|
||||
|| cms_envelop(NULL, &cmslen, rcpt_certs, rcpt_certs_len,
|
||||
OID_sm4_cbc, key, sizeof(key), iv, sizeof(iv),
|
||||
OID_cms_data, inbuf, inlen, NULL, 0, NULL, 0) != 1) {
|
||||
fprintf(stderr, "%s: inner error\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (!(cms = malloc(cmslen))) {
|
||||
fprintf(stderr, "%s: malloc failure\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (cms_envelop(cms, &cmslen, rcpt_certs, rcpt_certs_len,
|
||||
OID_sm4_cbc, key, sizeof(key), iv, sizeof(iv),
|
||||
OID_cms_data, inbuf, inlen, NULL, 0, NULL, 0) != 1) {
|
||||
fprintf(stderr, "%s: inner error\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (cms_to_pem(cms, cmslen, outfp) != 1) {
|
||||
fprintf(stderr, "%s: output CMS failure\n", prog);
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
|
||||
end:
|
||||
if (infile && infp) fclose(infp);
|
||||
if (outfile && outfp) fclose(outfp);
|
||||
if (rcpt_certs) free(rcpt_certs);
|
||||
if (cms) free(cms);
|
||||
return ret;
|
||||
}
|
||||
|
||||
#include <stdio.h>
|
||||
#include <errno.h>
|
||||
#include <string.h>
|
||||
#include <stdlib.h>
|
||||
#include <sys/stat.h>
|
||||
#include <gmssl/cms.h>
|
||||
#include <gmssl/x509.h>
|
||||
#include <gmssl/rand.h>
|
||||
|
||||
|
||||
/*
|
||||
|
||||
签名的时候要提供签名者的证书，并且提供签名私钥
|
||||
但是验证的时候假定CMS中已经包含签名者的证书了，但是我们要提供CA证书库
|
||||
|
||||
加密的时候要指定接收者的证书，并且可以有多个接收者
|
||||
解密的时候只提供一个解密私钥，但是最好配合解密者的证书，从这个证书中找到解密者的名字
|
||||
|
||||
如果即加密又签名，那么输出的是SignedAndEnveloped
|
||||
|
||||
CMS有PEM吗？
|
||||
|
||||
cms -encrypt -rcpt a.pem -rcpt b.pem -rcpt c.pem -in file -sign -signcert a.pem -signcert b.pem
|
||||
-rcptcert -rcpt_cert -sign_cert b.pem -signkey
|
||||
|
||||
首先接收者可以有多个证书
|
||||
|
||||
这里面有个问题，因为我们要输出一个加密的对象，因此我们必须把输入的内容读取进来。
|
||||
|
||||
|
||||
EnvelopedData 是一个封装的SEQUENCE中，因此必须读取所有的内容。
|
||||
如果是一个文件，就需要读取所有的文件内容，如果是一个stream ,也需要读取完整的内容到一个足够大的buffer中，如何设置这个buffer的大小呢
|
||||
|
||||
|
||||
|
||||
对于输入文件，如果输入有文件名的话，可以直接通过stat获取文件长度
|
||||
但是如果对于stream的话，实际上我们是没有办法获得输入长度的，那么就直接准备一个buffer好了。
|
||||
不要给自己找麻烦了，直接只支持文件输入吧
|
||||
encrypt
|
||||
|
||||
*/
|
||||
|
||||
static const char *options = "-encrypt (-rcptcert pem)* -in file -out file";
|
||||
|
||||
|
||||
static int get_files_size(int argc, char **argv, const char *option, size_t *len)
|
||||
{
|
||||
char *prog = argv[0];
|
||||
char *file = NULL;
|
||||
FILE *fp = NULL;
|
||||
struct stat st;
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
*len = 0;
|
||||
while (argc > 1) {
|
||||
if (!strcmp(*argv, option)) {
|
||||
if (--argc < 1) {
|
||||
fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
|
||||
return -1;
|
||||
}
|
||||
file = *(++argv);
|
||||
if (!(fp = fopen(file, "r"))) {
|
||||
fprintf(stderr, "%s: open '%s' failed : %s\n", prog, file, strerror(errno));
|
||||
return -1;
|
||||
}
|
||||
if (fstat(fileno(fp), &st) < 0) {
|
||||
fprintf(stderr, "%s: access '%s' failed : %s\n", prog, file, strerror(errno));
|
||||
fclose(fp);
|
||||
return -1;
|
||||
}
|
||||
*len += st.st_size;
|
||||
fclose(fp);
|
||||
}
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int cmsencrypt_main(int argc, char **argv)
|
||||
{
|
||||
int ret = 1;
|
||||
char *prog = argv[0];
|
||||
int op = 0;
|
||||
char *infile = NULL;
|
||||
char *outfile = NULL;
|
||||
FILE *infp = stdin;
|
||||
FILE *outfp = stdout;
|
||||
uint8_t *rcpt_certs = NULL;
|
||||
size_t rcpt_certs_len;
|
||||
uint8_t key[16];
|
||||
uint8_t iv[16];
|
||||
uint8_t *inbuf = NULL;
|
||||
size_t inlen;
|
||||
uint8_t *cms = NULL;
|
||||
size_t cmslen;
|
||||
uint8_t *cert;
|
||||
|
||||
if (argc < 2) {
|
||||
fprintf(stderr, "usage: %s %s\n", prog, options);
|
||||
return 1;
|
||||
}
|
||||
|
||||
// 预先统计证书缓冲大小和输入大小
|
||||
if (get_files_size(argc, argv, "-rcptcert", &rcpt_certs_len) != 1) {
|
||||
goto end;
|
||||
}
|
||||
if (rcpt_certs_len <= 0) {
|
||||
fprintf(stderr, "%s: invalid cert length\n", prog);
|
||||
goto end;
|
||||
}
|
||||
rcpt_certs_len = (rcpt_certs_len * 3)/4;
|
||||
if (!(rcpt_certs = malloc(rcpt_certs_len))) {
|
||||
fprintf(stderr, "%s: malloc failure\n", prog);
|
||||
goto end;
|
||||
}
|
||||
cert = rcpt_certs;
|
||||
|
||||
if (get_files_size(argc, argv, "-in", &inlen) != 1) {
|
||||
goto end;
|
||||
}
|
||||
if (inlen <= 0) {
|
||||
fprintf(stderr, "%s: invalid input length\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (!(inbuf = malloc(inlen))) {
|
||||
fprintf(stderr, "%s: %s\n", prog, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
|
||||
while (argc > 1) {
|
||||
if (!strcmp(*argv, "-help")) {
|
||||
printf("usage: %s %s\n", prog, options);
|
||||
ret = 0;
|
||||
goto end;
|
||||
} else if (!strcmp(*argv, "-rcptcert")) {
|
||||
char *certfile;
|
||||
FILE *certfp;
|
||||
size_t certlen;
|
||||
if (--argc < 1) goto bad;
|
||||
certfile = *(++argv);
|
||||
if (!(certfp = fopen(certfile, "r"))) {
|
||||
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, certfile, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
if (x509_cert_from_pem(cert, &certlen, rcpt_certs_len, certfp) != 1) {
|
||||
fprintf(stderr, "%s: error\n", prog);
|
||||
fclose(certfp);
|
||||
goto end;
|
||||
}
|
||||
cert += certlen;
|
||||
fclose(certfp);
|
||||
} else if (!strcmp(*argv, "-in")) {
|
||||
if (--argc < 1) goto bad;
|
||||
infile = *(++argv);
|
||||
if (!(infp = fopen(infile, "r"))) {
|
||||
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
if ((inlen = fread(inbuf, 1, inlen, infp)) <= 0) {
|
||||
fprintf(stderr, "%s: read data error: %s\n", prog, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
} else if (!strcmp(*argv, "-out")) {
|
||||
if (--argc < 1) goto bad;
|
||||
outfile = *(++argv);
|
||||
if (!(outfp = fopen(outfile, "w"))) {
|
||||
fprintf(stderr, "%s: open '%s' failure : %s\n", prog, outfile, strerror(errno));
|
||||
goto end;
|
||||
}
|
||||
} else {
|
||||
fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
|
||||
goto end;
|
||||
bad:
|
||||
fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
|
||||
goto end;
|
||||
}
|
||||
|
||||
argc--;
|
||||
argv++;
|
||||
}
|
||||
|
||||
rcpt_certs_len = cert - rcpt_certs;
|
||||
|
||||
if (rand_bytes(key, sizeof(key)) != 1
|
||||
|| rand_bytes(iv, sizeof(iv)) != 1
|
||||
|| cms_envelop(NULL, &cmslen, rcpt_certs, rcpt_certs_len,
|
||||
OID_sm4_cbc, key, sizeof(key), iv, sizeof(iv),
|
||||
OID_cms_data, inbuf, inlen, NULL, 0, NULL, 0) != 1) {
|
||||
fprintf(stderr, "%s: inner error\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (!(cms = malloc(cmslen))) {
|
||||
fprintf(stderr, "%s: malloc failure\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (cms_envelop(cms, &cmslen, rcpt_certs, rcpt_certs_len,
|
||||
OID_sm4_cbc, key, sizeof(key), iv, sizeof(iv),
|
||||
OID_cms_data, inbuf, inlen, NULL, 0, NULL, 0) != 1) {
|
||||
fprintf(stderr, "%s: inner error\n", prog);
|
||||
goto end;
|
||||
}
|
||||
if (cms_to_pem(cms, cmslen, outfp) != 1) {
|
||||
fprintf(stderr, "%s: output CMS failure\n", prog);
|
||||
goto end;
|
||||
}
|
||||
|
||||
ret = 0;
|
||||
|
||||
end:
|
||||
if (infile && infp) fclose(infp);
|
||||
if (outfile && outfp) fclose(outfp);
|
||||
if (rcpt_certs) free(rcpt_certs);
|
||||
if (cms) free(cms);
|
||||
return ret;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user