mirror of
https://github.com/guanzhi/GmSSL.git
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313 lines
9.5 KiB
C
313 lines
9.5 KiB
C
/*
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* Copyright 2014-2023 The GmSSL Project. All Rights Reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*/
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#include <stdio.h>
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#include <errno.h>
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#include <string.h>
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#include <stdlib.h>
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#include <gmssl/hex.h>
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#include <gmssl/x509.h>
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#include <gmssl/x509_crl.h>
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#include <gmssl/error.h>
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static const char *usage =
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" -in pem [-double_certs]"
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" [-check_crl]"
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" -cacert pem"
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" [-sm2_id str | -sm2_id_hex hex]"
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"\n";
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static const char *options =
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"Options\n"
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"\n"
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" -in pem Input certificate chain file in PEM format\n"
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" -double_certs The first two certificates are SM2 signing and encryption entity certificate\n"
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" -check_crl If the entity certificate has CRLDistributionPoints extension, Download and check againt the CRL\n"
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" -cacert pem CA certificate\n"
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" -sm2_id str Signer's ID in SM2 signature algorithm\n"
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" -sm2_id_hex hex Signer's ID in hex format\n"
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" When `-sm2_id` or `-sm2_id_hex` is specified,\n"
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" must use the same ID in other commands explicitly.\n"
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" If neither `-sm2_id` nor `-sm2_id_hex` is specified,\n"
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" the default string '1234567812345678' is used\n"
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"\n";
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int certverify_main(int argc, char **argv)
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{
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int ret = 1;
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char *prog = argv[0];
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char *str;
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char *infile = NULL;
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char *cacertfile = NULL;
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FILE *infp = stdin;
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FILE *cacertfp = NULL;
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uint8_t cert[1024];
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size_t certlen;
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uint8_t cacert[1024];
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size_t cacertlen;
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char signer_id[SM2_MAX_ID_LENGTH + 1] = {0};
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size_t signer_id_len = 0;
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const uint8_t *serial;
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size_t serial_len;
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const uint8_t *issuer;
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size_t issuer_len;
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const uint8_t *subject;
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size_t subject_len;
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const uint8_t *enc_serial;
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size_t enc_serial_len;
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const uint8_t *enc_issuer;
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size_t enc_issuer_len;
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const uint8_t *enc_subject;
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size_t enc_subject_len;
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int double_certs = 0;
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uint8_t enc_cert[1024];
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size_t enc_cert_len;
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int rv;
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int check_crl = 0;
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int crl_ret;
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argc--;
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argv++;
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if (argc < 1) {
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fprintf(stderr, "usage: %s %s\n", prog, usage);
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return 1;
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}
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while (argc > 0) {
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if (!strcmp(*argv, "-help")) {
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printf("usage: %s %s\n", prog, usage);
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printf("%s\n", options);
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ret = 0;
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goto end;
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} else if (!strcmp(*argv, "-in")) {
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if (--argc < 1) goto bad;
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infile = *(++argv);
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if (!(infp = fopen(infile, "rb"))) {
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fprintf(stderr, "%s: open '%s' failure : %s\n", prog, infile, strerror(errno));
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goto end;
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}
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} else if (!strcmp(*argv, "-double_certs")) {
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double_certs = 1;
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} else if (!strcmp(*argv, "-check_crl")) {
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check_crl = 1;
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} else if (!strcmp(*argv, "-cacert")) {
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if (--argc < 1) goto bad;
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cacertfile = *(++argv);
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if (!(cacertfp = fopen(cacertfile, "rb"))) {
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fprintf(stderr, "%s: open '%s' failure : %s\n", prog, cacertfile, strerror(errno));
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goto end;
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}
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} else if (!strcmp(*argv, "-sm2_id")) {
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if (--argc < 1) goto bad;
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str = *(++argv);
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if (strlen(str) > sizeof(signer_id) - 1) {
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fprintf(stderr, "%s: invalid `-sm2_id` length\n", prog);
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goto end;
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}
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strncpy(signer_id, str, sizeof(signer_id));
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signer_id_len = strlen(str);
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} else if (!strcmp(*argv, "-sm2_id_hex")) {
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if (--argc < 1) goto bad;
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str = *(++argv);
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if (strlen(str) > (sizeof(signer_id) - 1) * 2) {
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fprintf(stderr, "%s: invalid `-sm2_id_hex` length\n", prog);
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goto end;
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}
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if (hex_to_bytes(str, strlen(str), (uint8_t *)signer_id, &signer_id_len) != 1) {
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fprintf(stderr, "%s: invalid `-sm2_id_hex` value\n", prog);
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goto end;
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}
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} else {
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fprintf(stderr, "%s: illegal option '%s'\n", prog, *argv);
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goto end;
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bad:
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fprintf(stderr, "%s: '%s' option value missing\n", prog, *argv);
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goto end;
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}
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argc--;
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argv++;
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}
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if (!infile) {
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fprintf(stderr, "%s: '-in' option required\n", prog);
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goto end;
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}
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if (!cacertfile) {
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fprintf(stderr, "%s: '-cacert' option required\n", prog);
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goto end;
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}
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if (!signer_id_len) {
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strcpy(signer_id, SM2_DEFAULT_ID);
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signer_id_len = strlen(SM2_DEFAULT_ID);
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}
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// read first to be verified certificate
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if (x509_cert_from_pem(cert, &certlen, sizeof(cert), infp) != 1
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|| x509_cert_get_issuer_and_serial_number(cert, certlen,
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&issuer, &issuer_len, &serial, &serial_len) != 1
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|| x509_cert_get_subject(cert, certlen, &subject, &subject_len) != 1) {
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fprintf(stderr, "%s: read certificate failure\n", prog);
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goto end;
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}
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format_print(stdout, 0, 0, "Certificate\n");
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format_bytes(stdout, 0, 4, "serialNumber", serial, serial_len);
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x509_name_print(stdout, 0, 4, "subject", subject, subject_len);
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// read encryption cert in double certs
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if (double_certs) {
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if (x509_cert_from_pem(enc_cert, &enc_cert_len, sizeof(enc_cert), infp) != 1
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|| x509_cert_get_issuer_and_serial_number(enc_cert, enc_cert_len,
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&enc_issuer, &enc_issuer_len, &enc_serial, &enc_serial_len) != 1
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|| x509_cert_get_subject(enc_cert, enc_cert_len, &enc_subject, &enc_subject_len) != 1) {
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fprintf(stderr, "%s: read encryption certficate failure\n", prog);
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goto end;
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}
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if (x509_name_equ(enc_subject, enc_subject_len, subject, subject_len) != 1
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|| x509_name_equ(enc_issuer, enc_issuer_len, issuer, issuer_len) != 1) {
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fprintf(stderr, "%s: double certificates not compatible\n", prog);
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goto end;
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}
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}
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for (;;) {
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if ((rv = x509_cert_from_pem(cacert, &cacertlen, sizeof(cacert), infp)) != 1) {
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if (rv < 0) goto end;
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goto final;
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}
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if ((rv = x509_cert_verify_by_ca_cert(cert, certlen, cacert, cacertlen,
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signer_id, signer_id_len)) != 1) {
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fprintf(stderr, "%s: Verification failure\n", prog);
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goto end;
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}
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format_print(stdout, 0, 4, "Verification success\n");
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if (check_crl) {
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if ((crl_ret = x509_cert_check_crl(cert, certlen, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: Certificate has been revoked\n", prog);
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goto end;
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}
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format_print(stdout, 0, 4, "Revocation status: %s\n",
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crl_ret ? "Not revoked by CRL" : "No CRL URI found in certificate");
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}
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if (double_certs) {
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if ((rv = x509_cert_verify_by_ca_cert(enc_cert, enc_cert_len, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: Verification failure\n", prog);
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goto end;
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}
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format_print(stdout, 0, 0, "Certificate\n");
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format_bytes(stdout, 0, 4, "serialNumber", enc_serial, enc_serial_len);
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x509_name_print(stdout, 0, 4, "subject", enc_subject, enc_subject_len);
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format_print(stdout, 0, 4, "Verification success\n");
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if (check_crl) {
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if ((crl_ret = x509_cert_check_crl(enc_cert, enc_cert_len, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: Certificate has been revoked\n", prog);
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goto end;
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}
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format_print(stdout, 0, 4, "Revocation status: %s\n",
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crl_ret ? "Not revoked by CRL" : "No CRL URI found in certificate");
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}
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double_certs = 0;
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}
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// NOTE: make sure the buffer (issuer, issuer_len) not crashed
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memcpy(cert, cacert, cacertlen);
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certlen = cacertlen;
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if (x509_cert_get_issuer_and_serial_number(cert, certlen,
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&issuer, &issuer_len, &serial, &serial_len) != 1
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|| x509_cert_get_subject(cert, certlen, &subject, &subject_len) != 1) {
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error_print();
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goto end;
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}
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format_print(stdout, 0, 0, "Signed by Certificate\n");
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format_bytes(stdout, 0, 4, "serialNumber", serial, serial_len);
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x509_name_print(stdout, 0, 4, "Certificate", subject, subject_len);
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check_crl = 0; // only check the entity CRL
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}
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final:
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if (x509_cert_from_pem_by_subject(cacert, &cacertlen, sizeof(cacert), issuer, issuer_len, cacertfp) != 1) {
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fprintf(stderr, "%s: load CA certificate failure\n", prog);
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goto end;
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}
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if ((rv = x509_cert_verify_by_ca_cert(cert, certlen, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: inner error\n", prog);
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goto end;
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}
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format_print(stdout, 0, 4, "Verification success\n");
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if (check_crl) {
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if ((crl_ret = x509_cert_check_crl(cert, certlen, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: certificate has been revoked\n", prog);
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goto end;
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}
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format_print(stdout, 0, 4, "Revocation status: %s\n",
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crl_ret ? "Not revoked by CRL" : "No CRL URI found in certificate");
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}
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if (double_certs) {
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if ((rv = x509_cert_verify_by_ca_cert(enc_cert, enc_cert_len, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: inner error\n", prog);
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goto end;
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}
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format_print(stdout, 0, 0, "Certificate\n");
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format_bytes(stdout, 0, 4, "serialNumber", enc_serial, enc_serial_len);
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x509_name_print(stdout, 0, 4, "subject", enc_subject, enc_subject_len);
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format_print(stdout, 0, 4, "Verification success\n");
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if (check_crl) {
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if ((crl_ret = x509_cert_check_crl(enc_cert, enc_cert_len, cacert, cacertlen,
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signer_id, signer_id_len)) < 0) {
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fprintf(stderr, "%s: certificate has been revoked\n", prog);
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goto end;
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}
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format_print(stdout, 0, 4, "Revocation status: %s\n",
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crl_ret ? "Not revoked by CRL" : "No CRL URI found in certificate");
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}
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}
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if (x509_cert_get_issuer_and_serial_number(cacert, cacertlen, NULL, NULL, &serial, &serial_len) != 1
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|| x509_cert_get_subject(cacert, cacertlen, &subject, &subject_len) != 1) {
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fprintf(stderr, "%s: parse certificate error\n", prog);
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goto end;
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}
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format_print(stdout, 0, 0, "Signed by Certificate\n");
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format_bytes(stdout, 0, 4, "serialNumber", serial, serial_len);
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x509_name_print(stdout, 0, 4, "subject", subject, subject_len);
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printf("\n");
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ret = 0;
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end:
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if (infile && infp) fclose(infp);
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if (cacertfp) fclose(cacertfp);
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return ret;
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}
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