/* * Copyright 2014-2023 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. * * http://www.apache.org/licenses/LICENSE-2.0 */ #include #include #include #include #include #include #include #include #include #include #include static const char *options = "[-C str] [-ST str] [-L str] [-O str] [-OU str] -CN str" " -serial_len num" " -days num" " -key pem -pass pass" " [-sm2_id str | -sm2_id_hex hex]" " [-gen_authority_key_id]" " [-gen_subject_key_id]" " [-key_usage str]*" " [-subject_dns_name str]*" " [-issuer_dns_name str]*" " [-ca -path_len_constraint num]" " [-ext_key_usage str]*" " [-crl_http_uri uri] [-crl_ldap_uri uri]" " [-inhibit_any_policy num]" " [-ca_issuers_uri uri] [-ocsp_uri uri uri]" " [-out pem]"; static char *usage = "Options\n" "\n" " -serial_len num Serial number length in bytes\n" " -days num Validity peroid in days\n" " -key file Private key file in PEM format\n" " -pass pass Password for decrypting private key file\n" " -sm2_id str Signer's ID in SM2 signature algorithm\n" " -sm2_id_hex hex Signer's ID in hex format\n" " When `-sm2_id` or `-sm2_id_hex` is specified,\n" " must use the same ID in other commands explicitly.\n" " If neither `-sm2_id` nor `-sm2_id_hex` is specified,\n" " the default string '1234567812345678' is used\n" " -out file Output certificate file in PEM format\n" "\n" " Subject and Issuer options\n" "\n" " -C str Country\n" " -ST str State or province name\n" " -L str Locality\n" " -O str Organization\n" " -OU str Organizational unit\n" " -CN str Common name\n" "\n" " Extension options\n" "\n" " -gen_authority_key_id Generate AuthorityKeyIdentifier extension use SM3\n" " -gen_subject_key_id Generate SubjectKeyIdentifier extension use SM3\n" " -key_usage str Add KeyUsage extension\n" " this option can be called multi-times\n" " avaiable values:\n" " * digitalSignature\n" " * nonRepudiation\n" " * keyEncipherment\n" " * dataEncipherment\n" " * keyAgreement\n" " * keyCertSign\n" " * cRLSign\n" " * encipherOnly\n" " * decipherOnly\n" " -subject_dns_name str Add DNS name to SubjectAltName extension\n" " this option can be called multi-times\n" " -issuer_dns_name str Add DNS name to IssuerAltName extension\n" " this option can be called multi-times\n" " -ca Set cA of BasicConstaints extension\n" " -path_len_constraint num Set pathLenConstraint of BasicConstaints extension\n" " -ext_key_usage str Set ExtKeyUsage extension\n" " this option can be called multi-times\n" " avaiable values:\n" " * anyExtendedKeyUsage\n" " * serverAuth\n" " * clientAuth\n" " * codeSigning\n" " * emailProtection\n" " * timeStamping\n" " * OCSPSigning\n" " -crl_http_uri uri Set HTTP URI of CRL of CRLDistributionPoints extension\n" " -crl_ldap_uri uri Set LDAP URI of CRL of CRLDistributionPoints extension\n" " -inhibit_any_policy num Set skipCerts number of InhibitAnyPolicy extension\n" " -ca_issuers_uri uri Set URI of the CA certificate in DER-encoding o FreshestCRL extension\n" " -ocsp_uri uri Set OCSP URI of FreshestCRL extension\n" "\n" "Examples\n" "\n" " gmssl sm2keygen -pass P@ssw0rd -out rootcakey.pem\n" "\n" " gmssl certgen -C CN -ST Beijing -L Haidian -O PKU -OU CS -CN ROOTCA -days 3650 \\\n" " -key rootcakey.pem -pass P@ssw0rd \\\n" " -ca -path_len_constraint 6 \\\n" " -key_usage keyCertSign -key_usage cRLSign \\\n" " -crl_http_uri http://pku.edu.cn/ca.crl \\\n" " -ca_issuers_uri http://pku.edu.cn/ca.crt -ocsp_uri http://ocsp.pku.edu.cn \\\n" " -out rootcacert.pem\n" "\n"; static int ext_key_usage_set(int *usages, const char *usage_name) { int flag; if (x509_key_usage_from_name(&flag, usage_name) != 1) { error_print(); return -1; } *usages |= flag; return 1; } int certgen_main(int argc, char **argv) { int ret = 1; char *prog = argv[0]; char *str; // SerialNumber uint8_t serial[20]; int serial_len = 12; // Issuer, Subject uint8_t name[256]; size_t namelen; char *country = NULL; char *state = NULL; char *locality = NULL; char *org = NULL; char *org_unit = NULL; char *common_name = NULL; // Validity int days = 0; time_t not_before; time_t not_after; // Private Key FILE *keyfp = NULL; char *pass = NULL; SM2_KEY sm2_key; char signer_id[SM2_MAX_ID_LENGTH + 1] = {0}; size_t signer_id_len = 0; uint8_t *cert = NULL; size_t certlen = 0; FILE *outfp = stdout; char *outfile = NULL; uint8_t *p; // Extensions uint8_t exts[4096]; size_t extslen = 0; // AuthorityKeyIdentifier int gen_authority_key_id = 0; // SubjectKeyIdentifier int gen_subject_key_id = 0; // KeyUsage int key_usage = 0; // SubjectAltName uint8_t subject_alt_name[2048]; size_t subject_alt_name_len = 0; // IssuerAltName uint8_t issuer_alt_name[512]; size_t issuer_alt_name_len = 0; // BasicConstraints int ca = -1; int path_len_constraint = -1; // ExtKeyUsageSyntax int ext_key_usages[12]; size_t ext_key_usages_cnt = 0; // CRLDistributionPoints char *crl_http_uri = NULL; char *crl_ldap_uri = NULL; // InhibitAnyPolicy int inhibit_any_policy = -1; // FreshestCRL char *ca_issuers_uri = NULL; char *ocsp_uri = NULL; argc--; argv++; if (argc < 1) { fprintf(stderr, "usage: gmssl %s %s\n", prog, options); return 1; } while (argc > 0) { if (!strcmp(*argv, "-help")) { printf("usage: gmssl %s %s\n\n", prog, options); printf("%s\n", usage); ret = 0; goto end; } else if (!strcmp(*argv, "-serial_len")) { if (--argc < 1) goto bad; serial_len = atoi(*(++argv)); if (serial_len <= 0 || serial_len > sizeof(serial)) { fprintf(stderr, "%s: invalid `-serial_len` value, need a number less than %zu\n", prog, sizeof(serial)); goto end; } } else if (!strcmp(*argv, "-CN")) { if (--argc < 1) goto bad; common_name = *(++argv); } else if (!strcmp(*argv, "-O")) { if (--argc < 1) goto bad; org = *(++argv); } else if (!strcmp(*argv, "-OU")) { if (--argc < 1) goto bad; org_unit = *(++argv); } else if (!strcmp(*argv, "-C")) { if (--argc < 1) goto bad; country = *(++argv); if (strlen(country) != 2) { fprintf(stderr, "%s: invalid '-C' value, need 2-char country name such as 'CN', 'US'\n", prog); goto end; } } else if (!strcmp(*argv, "-ST")) { if (--argc < 1) goto bad; state = *(++argv); } else if (!strcmp(*argv, "-L")) { if (--argc < 1) goto bad; locality = *(++argv); } else if (!strcmp(*argv, "-days")) { if (--argc < 1) goto bad; days = atoi(*(++argv)); if (days <= 0) { fprintf(stderr, "%s: invalid `-days` value, need a positive number\n", prog); goto end; } } else if (!strcmp(*argv, "-key")) { if (--argc < 1) goto bad; str = *(++argv); if (!(keyfp = fopen(str, "rb"))) { fprintf(stderr, "%s: open '%s' failure : %s\n", prog, str, strerror(errno)); goto end; } } else if (!strcmp(*argv, "-pass")) { if (--argc < 1) goto bad; pass = *(++argv); } else if (!strcmp(*argv, "-sm2_id")) { if (--argc < 1) goto bad; str = *(++argv); if (strlen(str) > sizeof(signer_id) - 1) { fprintf(stderr, "%s: invalid `-sm2_id` length\n", prog); goto end; } strncpy(signer_id, str, sizeof(signer_id)); signer_id_len = strlen(str); } else if (!strcmp(*argv, "-sm2_id_hex")) { if (--argc < 1) goto bad; str = *(++argv); if (strlen(str) > (sizeof(signer_id) - 1) * 2) { fprintf(stderr, "%s: invalid `-sm2_id_hex` length\n", prog); goto end; } if (hex_to_bytes(str, strlen(str), (uint8_t *)signer_id, &signer_id_len) != 1) { fprintf(stderr, "%s: invalid `-sm2_id_hex` value\n", prog); goto end; } } else if (!strcmp(*argv, "-gen_authority_key_id")) { gen_authority_key_id = 1; } else if (!strcmp(*argv, "-gen_subject_key_id")) { gen_subject_key_id = 1; } else if (!strcmp(*argv, "-key_usage")) { if (--argc < 1) goto bad; str = *(++argv); if (ext_key_usage_set(&key_usage, str) != 1) { fprintf(stderr, "%s: invalid `-key_usage` value '%s'\n", prog, str); goto end; } } else if (!strcmp(*argv, "-subject_dns_name")) { if (--argc < 1) goto bad; str = *(++argv); if (x509_general_names_add_dns_name( subject_alt_name, &subject_alt_name_len, sizeof(subject_alt_name), str) != 1) { fprintf(stderr, "%s: inner error on processing `-subject_dns_name`\n", prog); goto end; } } else if (!strcmp(*argv, "-issuer_dns_name")) { if (--argc < 1) goto bad; str = *(++argv); if (x509_general_names_add_dns_name( issuer_alt_name, &issuer_alt_name_len, sizeof(issuer_alt_name), str) != 1) { fprintf(stderr, "%s: inner error on processing `-issuer_dns_name`\n", prog); goto end; } } else if (!strcmp(*argv, "-ca")) { ca = 1; } else if (!strcmp(*argv, "-path_len_constraint")) { if (--argc < 1) goto bad; path_len_constraint = atoi(*(++argv)); if (path_len_constraint < 0) { fprintf(stderr, "%s: invalid `-path_len_constraint` value\n", prog); goto end; } } else if (!strcmp(*argv, "-ext_key_usage")) { if (--argc < 1) goto bad; str = *(++argv); if (x509_key_purpose_from_name(str) <= 0) { fprintf(stderr, "%s: invalid `-ext_key_usage` value '%s'\n", prog, str); goto end; } if (ext_key_usages_cnt >= sizeof(ext_key_usages)/sizeof(ext_key_usages[0])) { fprintf(stderr, "%s: too much `-ext_key_usage` options\n", prog); goto end; } ext_key_usages[ext_key_usages_cnt++] = x509_key_purpose_from_name(str); } else if (!strcmp(*argv, "-crl_http_uri")) { if (--argc < 1) goto bad; crl_http_uri = *(++argv); } else if (!strcmp(*argv, "-crl_ldap_uri")) { if (--argc < 1) goto bad; crl_ldap_uri = *(++argv); } else if (!strcmp(*argv, "-inhibit_any_policy")) { if (--argc < 1) goto bad; inhibit_any_policy = atoi(*(++argv)); if (inhibit_any_policy < 0) { fprintf(stderr, "%s: invalid `-inhibit_any_policy` value\n", prog); goto end; } } else if (!strcmp(*argv, "-ca_issuers_uri")) { if (--argc < 1) goto bad; ca_issuers_uri = *(++argv); } else if (!strcmp(*argv, "-ocsp_uri")) { if (--argc < 1) goto bad; ocsp_uri = *(++argv); } else if (!strcmp(*argv, "-out")) { if (--argc < 1) goto bad; outfile = *(++argv); if (!(outfp = fopen(outfile, "wb"))) { 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` value missing\n", prog, *argv); goto end; } argc--; argv++; } if (!common_name) { fprintf(stderr, "%s: option `-CN` required\n", prog); printf("usage: gmssl %s %s\n\n", prog, options); goto end; } if (!days) { fprintf(stderr, "%s: option `-days` required\n", prog); printf("usage: gmssl %s %s\n\n", prog, options); goto end; } if (!keyfp) { fprintf(stderr, "%s: option `-key` required\n", prog); printf("usage: gmssl %s %s\n\n", prog, options); goto end; } if (!pass) { fprintf(stderr, "%s: option `-pass` required\n", prog); printf("usage: gmssl %s %s\n\n", prog, options); goto end; } if (sm2_private_key_info_decrypt_from_pem(&sm2_key, pass, keyfp) != 1) { fprintf(stderr, "%s: load private key failed\n", prog); goto end; } if (!signer_id_len) { strcpy(signer_id, SM2_DEFAULT_ID); signer_id_len = strlen(SM2_DEFAULT_ID); } // Serial if (rand_bytes(serial, sizeof(serial)) != 1) { fprintf(stderr, "%s: RNG error\n", prog); goto end; } // Issuer, Subject if (x509_name_set(name, &namelen, sizeof(name), country, state, locality, org, org_unit, common_name) != 1) { fprintf(stderr, "%s: set Issuer/Subject Name error\n", prog); goto end; } // Validity time(¬_before); if (x509_validity_add_days(¬_after, not_before, days) != 1) { fprintf(stderr, "%s: set Validity failure\n", prog); goto end; } // Extensions if (gen_authority_key_id) { if (x509_exts_add_default_authority_key_identifier(exts, &extslen, sizeof(exts), &sm2_key) != 1) { fprintf(stderr, "%s: set AuthorityKeyIdentifier extension failure\n", prog); goto end; } } if (gen_subject_key_id) { if (x509_exts_add_subject_key_identifier_ex(exts, &extslen, sizeof(exts), -1, &sm2_key) != 1) { fprintf(stderr, "%s: set SubjectKeyIdentifier extension failure\n", prog); goto end; } } if (key_usage) { if (x509_exts_add_key_usage(exts, &extslen, sizeof(exts), X509_critical, key_usage) != 1) { fprintf(stderr, "%s: set KeyUsage extension failure\n", prog); goto end; } } // no CertificatePolicies // no PolicyMappings if (subject_alt_name_len) { if (x509_exts_add_subject_alt_name(exts, &extslen, sizeof(exts), -1, subject_alt_name, subject_alt_name_len) != 1) { fprintf(stderr, "%s: set SubjectAltName extension failure\n", prog); goto end; } } if (issuer_alt_name_len) { if (x509_exts_add_issuer_alt_name(exts, &extslen, sizeof(exts), -1, issuer_alt_name, issuer_alt_name_len) != 1) { fprintf(stderr, "%s: set IssuerAltName extension failure\n", prog); goto end; } } // no SubjectDirectoryAttributes if (ca >= 0 || path_len_constraint >= 0) { if (x509_exts_add_basic_constraints(exts, &extslen, sizeof(exts), X509_critical, ca, path_len_constraint) != 1) { fprintf(stderr, "%s: set BasicConstraints extension failure\n", prog); goto end; } } // no NameConstraints // no PolicyConstraints if (ext_key_usages_cnt) { if (x509_exts_add_ext_key_usage(exts, &extslen, sizeof(exts), -1, ext_key_usages, ext_key_usages_cnt) != 1) { fprintf(stderr, "%s: set ExtKeyUsage extension failure\n", prog); goto end; } } if (crl_http_uri || crl_ldap_uri) { if (x509_exts_add_crl_distribution_points(exts, &extslen, sizeof(exts), -1, crl_http_uri, crl_http_uri ? strlen(crl_http_uri) : 0, crl_ldap_uri, crl_ldap_uri ? strlen(crl_ldap_uri) : 0) != 1) { fprintf(stderr, "%s: set CRLDistributionPoints extension failure\n", prog); return -1; } } if (inhibit_any_policy >= 0) { if (x509_exts_add_inhibit_any_policy(exts, &extslen, sizeof(exts), X509_critical, inhibit_any_policy) != 1) { fprintf(stderr, "%s: set InhibitAnyPolicy extension failure\n", prog); goto end; } } if (ca_issuers_uri || ocsp_uri) { if (x509_exts_add_authority_info_access(exts, &extslen, sizeof(exts), 0, ca_issuers_uri, ca_issuers_uri ? strlen(ca_issuers_uri) : 0, ocsp_uri, ocsp_uri ? strlen(ocsp_uri) : 0) != 1) { fprintf(stderr, "%s: set AuthorityInfoAccess extension failure\n", prog); goto end; } } if (x509_cert_sign_to_der( X509_version_v3, serial, serial_len, OID_sm2sign_with_sm3, name, namelen, not_before, not_after, name, namelen, &sm2_key, NULL, 0, NULL, 0, exts, extslen, &sm2_key, signer_id, signer_id_len, NULL, &certlen) != 1) { fprintf(stderr, "%s: certificate generation failure\n", prog); goto end; } if (!(cert = malloc(certlen))) { fprintf(stderr, "%s: malloc failure\n", prog); goto end; } p = cert; certlen = 0; if (x509_cert_sign_to_der( X509_version_v3, serial, serial_len, OID_sm2sign_with_sm3, name, namelen, not_before, not_after, name, namelen, &sm2_key, NULL, 0, NULL, 0, exts, extslen, &sm2_key, signer_id, signer_id_len, &p, &certlen) != 1) { fprintf(stderr, "%s: certificate generation failure\n", prog); goto end; } if (x509_cert_to_pem(cert, certlen, outfp) != 1) { fprintf(stderr, "%s: output certificate failed\n", prog); goto end; } ret = 0; end: gmssl_secure_clear(&sm2_key, sizeof(SM2_KEY)); if (cert) free(cert); if (keyfp) fclose(keyfp); if (outfile && outfp) fclose(outfp); return ret; }