| /* |
| * Certificate generation and signing |
| * |
| * Copyright The Mbed TLS Contributors |
| * SPDX-License-Identifier: Apache-2.0 |
| * |
| * 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 "mbedtls/build_info.h" |
| |
| #include "mbedtls/platform.h" |
| /* md.h is included this early since MD_CAN_XXX macros are defined there. */ |
| #include "mbedtls/md.h" |
| |
| #if !defined(MBEDTLS_X509_CRT_WRITE_C) || \ |
| !defined(MBEDTLS_X509_CRT_PARSE_C) || !defined(MBEDTLS_FS_IO) || \ |
| !defined(MBEDTLS_ENTROPY_C) || !defined(MBEDTLS_CTR_DRBG_C) || \ |
| !defined(MBEDTLS_ERROR_C) || !defined(MBEDTLS_MD_CAN_SHA256) || \ |
| !defined(MBEDTLS_PEM_WRITE_C) |
| int main(void) |
| { |
| mbedtls_printf("MBEDTLS_X509_CRT_WRITE_C and/or MBEDTLS_X509_CRT_PARSE_C and/or " |
| "MBEDTLS_FS_IO and/or MBEDTLS_MD_CAN_SHA256 and/or " |
| "MBEDTLS_ENTROPY_C and/or MBEDTLS_CTR_DRBG_C and/or " |
| "MBEDTLS_ERROR_C not defined.\n"); |
| mbedtls_exit(0); |
| } |
| #else |
| |
| #include "mbedtls/x509_crt.h" |
| #include "mbedtls/x509_csr.h" |
| #include "mbedtls/oid.h" |
| #include "mbedtls/entropy.h" |
| #include "mbedtls/ctr_drbg.h" |
| #include "mbedtls/error.h" |
| #include "test/helpers.h" |
| |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #define SET_OID(x, oid) \ |
| do { x.len = MBEDTLS_OID_SIZE(oid); x.p = (unsigned char *) oid; } while (0) |
| |
| #if defined(MBEDTLS_X509_CSR_PARSE_C) |
| #define USAGE_CSR \ |
| " request_file=%%s default: (empty)\n" \ |
| " If request_file is specified, subject_key,\n" \ |
| " subject_pwd and subject_name are ignored!\n" |
| #else |
| #define USAGE_CSR "" |
| #endif /* MBEDTLS_X509_CSR_PARSE_C */ |
| |
| #define FORMAT_PEM 0 |
| #define FORMAT_DER 1 |
| |
| #define DFL_ISSUER_CRT "" |
| #define DFL_REQUEST_FILE "" |
| #define DFL_SUBJECT_KEY "subject.key" |
| #define DFL_ISSUER_KEY "ca.key" |
| #define DFL_SUBJECT_PWD "" |
| #define DFL_ISSUER_PWD "" |
| #define DFL_OUTPUT_FILENAME "cert.crt" |
| #define DFL_SUBJECT_NAME "CN=Cert,O=mbed TLS,C=UK" |
| #define DFL_ISSUER_NAME "CN=CA,O=mbed TLS,C=UK" |
| #define DFL_NOT_BEFORE "20010101000000" |
| #define DFL_NOT_AFTER "20301231235959" |
| #define DFL_SERIAL "1" |
| #define DFL_SERIAL_HEX "1" |
| #define DFL_SELFSIGN 0 |
| #define DFL_IS_CA 0 |
| #define DFL_MAX_PATHLEN -1 |
| #define DFL_SIG_ALG MBEDTLS_MD_SHA256 |
| #define DFL_KEY_USAGE 0 |
| #define DFL_EXT_KEY_USAGE NULL |
| #define DFL_NS_CERT_TYPE 0 |
| #define DFL_VERSION 3 |
| #define DFL_AUTH_IDENT 1 |
| #define DFL_SUBJ_IDENT 1 |
| #define DFL_CONSTRAINTS 1 |
| #define DFL_DIGEST MBEDTLS_MD_SHA256 |
| #define DFL_FORMAT FORMAT_PEM |
| |
| #define USAGE \ |
| "\n usage: cert_write param=<>...\n" \ |
| "\n acceptable parameters:\n" \ |
| USAGE_CSR \ |
| " subject_key=%%s default: subject.key\n" \ |
| " subject_pwd=%%s default: (empty)\n" \ |
| " subject_name=%%s default: CN=Cert,O=mbed TLS,C=UK\n" \ |
| "\n" \ |
| " issuer_crt=%%s default: (empty)\n" \ |
| " If issuer_crt is specified, issuer_name is\n" \ |
| " ignored!\n" \ |
| " issuer_name=%%s default: CN=CA,O=mbed TLS,C=UK\n" \ |
| "\n" \ |
| " selfsign=%%d default: 0 (false)\n" \ |
| " If selfsign is enabled, issuer_name and\n" \ |
| " issuer_key are required (issuer_crt and\n" \ |
| " subject_* are ignored\n" \ |
| " issuer_key=%%s default: ca.key\n" \ |
| " issuer_pwd=%%s default: (empty)\n" \ |
| " output_file=%%s default: cert.crt\n" \ |
| " serial=%%s default: 1\n" \ |
| " In decimal format; it can be used as\n" \ |
| " alternative to serial_hex, but it's\n" \ |
| " limited in max length to\n" \ |
| " unsigned long long int\n" \ |
| " serial_hex=%%s default: 1\n" \ |
| " In hex format; it can be used as\n" \ |
| " alternative to serial\n" \ |
| " not_before=%%s default: 20010101000000\n" \ |
| " not_after=%%s default: 20301231235959\n" \ |
| " is_ca=%%d default: 0 (disabled)\n" \ |
| " max_pathlen=%%d default: -1 (none)\n" \ |
| " md=%%s default: SHA256\n" \ |
| " Supported values (if enabled):\n" \ |
| " MD5, RIPEMD160, SHA1,\n" \ |
| " SHA224, SHA256, SHA384, SHA512\n" \ |
| " version=%%d default: 3\n" \ |
| " Possible values: 1, 2, 3\n" \ |
| " subject_identifier=%%s default: 1\n" \ |
| " Possible values: 0, 1\n" \ |
| " (Considered for v3 only)\n" \ |
| " authority_identifier=%%s default: 1\n" \ |
| " Possible values: 0, 1\n" \ |
| " (Considered for v3 only)\n" \ |
| " basic_constraints=%%d default: 1\n" \ |
| " Possible values: 0, 1\n" \ |
| " (Considered for v3 only)\n" \ |
| " key_usage=%%s default: (empty)\n" \ |
| " Comma-separated-list of values:\n" \ |
| " digital_signature\n" \ |
| " non_repudiation\n" \ |
| " key_encipherment\n" \ |
| " data_encipherment\n" \ |
| " key_agreement\n" \ |
| " key_cert_sign\n" \ |
| " crl_sign\n" \ |
| " (Considered for v3 only)\n" \ |
| " ext_key_usage=%%s default: (empty)\n" \ |
| " Comma-separated-list of values:\n" \ |
| " serverAuth\n" \ |
| " clientAuth\n" \ |
| " codeSigning\n" \ |
| " emailProtection\n" \ |
| " timeStamping\n" \ |
| " OCSPSigning\n" \ |
| " ns_cert_type=%%s default: (empty)\n" \ |
| " Comma-separated-list of values:\n" \ |
| " ssl_client\n" \ |
| " ssl_server\n" \ |
| " email\n" \ |
| " object_signing\n" \ |
| " ssl_ca\n" \ |
| " email_ca\n" \ |
| " object_signing_ca\n" \ |
| " format=pem|der default: pem\n" \ |
| "\n" |
| |
| typedef enum { |
| SERIAL_FRMT_UNSPEC, |
| SERIAL_FRMT_DEC, |
| SERIAL_FRMT_HEX |
| } serial_format_t; |
| |
| /* |
| * global options |
| */ |
| struct options { |
| const char *issuer_crt; /* filename of the issuer certificate */ |
| const char *request_file; /* filename of the certificate request */ |
| const char *subject_key; /* filename of the subject key file */ |
| const char *issuer_key; /* filename of the issuer key file */ |
| const char *subject_pwd; /* password for the subject key file */ |
| const char *issuer_pwd; /* password for the issuer key file */ |
| const char *output_file; /* where to store the constructed CRT */ |
| const char *subject_name; /* subject name for certificate */ |
| const char *issuer_name; /* issuer name for certificate */ |
| const char *not_before; /* validity period not before */ |
| const char *not_after; /* validity period not after */ |
| const char *serial; /* serial number string (decimal) */ |
| const char *serial_hex; /* serial number string (hex) */ |
| int selfsign; /* selfsign the certificate */ |
| int is_ca; /* is a CA certificate */ |
| int max_pathlen; /* maximum CA path length */ |
| int authority_identifier; /* add authority identifier to CRT */ |
| int subject_identifier; /* add subject identifier to CRT */ |
| int basic_constraints; /* add basic constraints ext to CRT */ |
| int version; /* CRT version */ |
| mbedtls_md_type_t md; /* Hash used for signing */ |
| unsigned char key_usage; /* key usage flags */ |
| mbedtls_asn1_sequence *ext_key_usage; /* extended key usages */ |
| unsigned char ns_cert_type; /* NS cert type */ |
| int format; /* format */ |
| } opt; |
| |
| int write_certificate(mbedtls_x509write_cert *crt, const char *output_file, |
| int (*f_rng)(void *, unsigned char *, size_t), |
| void *p_rng) |
| { |
| int ret; |
| FILE *f; |
| unsigned char output_buf[4096]; |
| unsigned char *output_start; |
| size_t len = 0; |
| |
| memset(output_buf, 0, 4096); |
| if (opt.format == FORMAT_DER) { |
| ret = mbedtls_x509write_crt_der(crt, output_buf, 4096, |
| f_rng, p_rng); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| len = ret; |
| output_start = output_buf + 4096 - len; |
| } else { |
| ret = mbedtls_x509write_crt_pem(crt, output_buf, 4096, |
| f_rng, p_rng); |
| if (ret < 0) { |
| return ret; |
| } |
| |
| len = strlen((char *) output_buf); |
| output_start = output_buf; |
| } |
| |
| if ((f = fopen(output_file, "w")) == NULL) { |
| return -1; |
| } |
| |
| if (fwrite(output_start, 1, len, f) != len) { |
| fclose(f); |
| return -1; |
| } |
| |
| fclose(f); |
| |
| return 0; |
| } |
| |
| int parse_serial_decimal_format(unsigned char *obuf, size_t obufmax, |
| const char *ibuf, size_t *len) |
| { |
| unsigned long long int dec; |
| unsigned int remaining_bytes = sizeof(dec); |
| unsigned char *p = obuf; |
| unsigned char val; |
| char *end_ptr = NULL; |
| |
| errno = 0; |
| dec = strtoull(ibuf, &end_ptr, 10); |
| |
| if ((errno != 0) || (end_ptr == ibuf)) { |
| return -1; |
| } |
| |
| *len = 0; |
| |
| while (remaining_bytes > 0) { |
| if (obufmax < (*len + 1)) { |
| return -1; |
| } |
| |
| val = (dec >> ((remaining_bytes - 1) * 8)) & 0xFF; |
| |
| /* Skip leading zeros */ |
| if ((val != 0) || (*len != 0)) { |
| *p = val; |
| (*len)++; |
| p++; |
| } |
| |
| remaining_bytes--; |
| } |
| |
| return 0; |
| } |
| |
| int main(int argc, char *argv[]) |
| { |
| int ret = 1; |
| int exit_code = MBEDTLS_EXIT_FAILURE; |
| mbedtls_x509_crt issuer_crt; |
| mbedtls_pk_context loaded_issuer_key, loaded_subject_key; |
| mbedtls_pk_context *issuer_key = &loaded_issuer_key, |
| *subject_key = &loaded_subject_key; |
| char buf[1024]; |
| char issuer_name[256]; |
| int i; |
| char *p, *q, *r; |
| #if defined(MBEDTLS_X509_CSR_PARSE_C) |
| char subject_name[256]; |
| mbedtls_x509_csr csr; |
| #endif |
| mbedtls_x509write_cert crt; |
| serial_format_t serial_frmt = SERIAL_FRMT_UNSPEC; |
| unsigned char serial[MBEDTLS_X509_RFC5280_MAX_SERIAL_LEN]; |
| size_t serial_len; |
| mbedtls_asn1_sequence *ext_key_usage; |
| mbedtls_entropy_context entropy; |
| mbedtls_ctr_drbg_context ctr_drbg; |
| const char *pers = "crt example app"; |
| |
| /* |
| * Set to sane values |
| */ |
| mbedtls_x509write_crt_init(&crt); |
| mbedtls_pk_init(&loaded_issuer_key); |
| mbedtls_pk_init(&loaded_subject_key); |
| mbedtls_ctr_drbg_init(&ctr_drbg); |
| mbedtls_entropy_init(&entropy); |
| #if defined(MBEDTLS_X509_CSR_PARSE_C) |
| mbedtls_x509_csr_init(&csr); |
| #endif |
| mbedtls_x509_crt_init(&issuer_crt); |
| memset(buf, 0, sizeof(buf)); |
| memset(serial, 0, sizeof(serial)); |
| |
| #if defined(MBEDTLS_USE_PSA_CRYPTO) |
| psa_status_t status = psa_crypto_init(); |
| if (status != PSA_SUCCESS) { |
| mbedtls_fprintf(stderr, "Failed to initialize PSA Crypto implementation: %d\n", |
| (int) status); |
| goto exit; |
| } |
| #endif /* MBEDTLS_USE_PSA_CRYPTO */ |
| |
| if (argc < 2) { |
| usage: |
| mbedtls_printf(USAGE); |
| goto exit; |
| } |
| |
| opt.issuer_crt = DFL_ISSUER_CRT; |
| opt.request_file = DFL_REQUEST_FILE; |
| opt.subject_key = DFL_SUBJECT_KEY; |
| opt.issuer_key = DFL_ISSUER_KEY; |
| opt.subject_pwd = DFL_SUBJECT_PWD; |
| opt.issuer_pwd = DFL_ISSUER_PWD; |
| opt.output_file = DFL_OUTPUT_FILENAME; |
| opt.subject_name = DFL_SUBJECT_NAME; |
| opt.issuer_name = DFL_ISSUER_NAME; |
| opt.not_before = DFL_NOT_BEFORE; |
| opt.not_after = DFL_NOT_AFTER; |
| opt.serial = DFL_SERIAL; |
| opt.serial_hex = DFL_SERIAL_HEX; |
| opt.selfsign = DFL_SELFSIGN; |
| opt.is_ca = DFL_IS_CA; |
| opt.max_pathlen = DFL_MAX_PATHLEN; |
| opt.key_usage = DFL_KEY_USAGE; |
| opt.ext_key_usage = DFL_EXT_KEY_USAGE; |
| opt.ns_cert_type = DFL_NS_CERT_TYPE; |
| opt.version = DFL_VERSION - 1; |
| opt.md = DFL_DIGEST; |
| opt.subject_identifier = DFL_SUBJ_IDENT; |
| opt.authority_identifier = DFL_AUTH_IDENT; |
| opt.basic_constraints = DFL_CONSTRAINTS; |
| opt.format = DFL_FORMAT; |
| |
| for (i = 1; i < argc; i++) { |
| |
| p = argv[i]; |
| if ((q = strchr(p, '=')) == NULL) { |
| goto usage; |
| } |
| *q++ = '\0'; |
| |
| if (strcmp(p, "request_file") == 0) { |
| opt.request_file = q; |
| } else if (strcmp(p, "subject_key") == 0) { |
| opt.subject_key = q; |
| } else if (strcmp(p, "issuer_key") == 0) { |
| opt.issuer_key = q; |
| } else if (strcmp(p, "subject_pwd") == 0) { |
| opt.subject_pwd = q; |
| } else if (strcmp(p, "issuer_pwd") == 0) { |
| opt.issuer_pwd = q; |
| } else if (strcmp(p, "issuer_crt") == 0) { |
| opt.issuer_crt = q; |
| } else if (strcmp(p, "output_file") == 0) { |
| opt.output_file = q; |
| } else if (strcmp(p, "subject_name") == 0) { |
| opt.subject_name = q; |
| } else if (strcmp(p, "issuer_name") == 0) { |
| opt.issuer_name = q; |
| } else if (strcmp(p, "not_before") == 0) { |
| opt.not_before = q; |
| } else if (strcmp(p, "not_after") == 0) { |
| opt.not_after = q; |
| } else if (strcmp(p, "serial") == 0) { |
| if (serial_frmt != SERIAL_FRMT_UNSPEC) { |
| mbedtls_printf("Invalid attempt to set the serial more than once\n"); |
| goto usage; |
| } |
| serial_frmt = SERIAL_FRMT_DEC; |
| opt.serial = q; |
| } else if (strcmp(p, "serial_hex") == 0) { |
| if (serial_frmt != SERIAL_FRMT_UNSPEC) { |
| mbedtls_printf("Invalid attempt to set the serial more than once\n"); |
| goto usage; |
| } |
| serial_frmt = SERIAL_FRMT_HEX; |
| opt.serial_hex = q; |
| } else if (strcmp(p, "authority_identifier") == 0) { |
| opt.authority_identifier = atoi(q); |
| if (opt.authority_identifier != 0 && |
| opt.authority_identifier != 1) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else if (strcmp(p, "subject_identifier") == 0) { |
| opt.subject_identifier = atoi(q); |
| if (opt.subject_identifier != 0 && |
| opt.subject_identifier != 1) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else if (strcmp(p, "basic_constraints") == 0) { |
| opt.basic_constraints = atoi(q); |
| if (opt.basic_constraints != 0 && |
| opt.basic_constraints != 1) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else if (strcmp(p, "md") == 0) { |
| const mbedtls_md_info_t *md_info = |
| mbedtls_md_info_from_string(q); |
| if (md_info == NULL) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| opt.md = mbedtls_md_get_type(md_info); |
| } else if (strcmp(p, "version") == 0) { |
| opt.version = atoi(q); |
| if (opt.version < 1 || opt.version > 3) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| opt.version--; |
| } else if (strcmp(p, "selfsign") == 0) { |
| opt.selfsign = atoi(q); |
| if (opt.selfsign < 0 || opt.selfsign > 1) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else if (strcmp(p, "is_ca") == 0) { |
| opt.is_ca = atoi(q); |
| if (opt.is_ca < 0 || opt.is_ca > 1) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else if (strcmp(p, "max_pathlen") == 0) { |
| opt.max_pathlen = atoi(q); |
| if (opt.max_pathlen < -1 || opt.max_pathlen > 127) { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else if (strcmp(p, "key_usage") == 0) { |
| while (q != NULL) { |
| if ((r = strchr(q, ',')) != NULL) { |
| *r++ = '\0'; |
| } |
| |
| if (strcmp(q, "digital_signature") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_DIGITAL_SIGNATURE; |
| } else if (strcmp(q, "non_repudiation") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_NON_REPUDIATION; |
| } else if (strcmp(q, "key_encipherment") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_KEY_ENCIPHERMENT; |
| } else if (strcmp(q, "data_encipherment") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_DATA_ENCIPHERMENT; |
| } else if (strcmp(q, "key_agreement") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_KEY_AGREEMENT; |
| } else if (strcmp(q, "key_cert_sign") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_KEY_CERT_SIGN; |
| } else if (strcmp(q, "crl_sign") == 0) { |
| opt.key_usage |= MBEDTLS_X509_KU_CRL_SIGN; |
| } else { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| |
| q = r; |
| } |
| } else if (strcmp(p, "ext_key_usage") == 0) { |
| mbedtls_asn1_sequence **tail = &opt.ext_key_usage; |
| |
| while (q != NULL) { |
| if ((r = strchr(q, ',')) != NULL) { |
| *r++ = '\0'; |
| } |
| |
| ext_key_usage = mbedtls_calloc(1, sizeof(mbedtls_asn1_sequence)); |
| ext_key_usage->buf.tag = MBEDTLS_ASN1_OID; |
| if (strcmp(q, "serverAuth") == 0) { |
| SET_OID(ext_key_usage->buf, MBEDTLS_OID_SERVER_AUTH); |
| } else if (strcmp(q, "clientAuth") == 0) { |
| SET_OID(ext_key_usage->buf, MBEDTLS_OID_CLIENT_AUTH); |
| } else if (strcmp(q, "codeSigning") == 0) { |
| SET_OID(ext_key_usage->buf, MBEDTLS_OID_CODE_SIGNING); |
| } else if (strcmp(q, "emailProtection") == 0) { |
| SET_OID(ext_key_usage->buf, MBEDTLS_OID_EMAIL_PROTECTION); |
| } else if (strcmp(q, "timeStamping") == 0) { |
| SET_OID(ext_key_usage->buf, MBEDTLS_OID_TIME_STAMPING); |
| } else if (strcmp(q, "OCSPSigning") == 0) { |
| SET_OID(ext_key_usage->buf, MBEDTLS_OID_OCSP_SIGNING); |
| } else { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| |
| *tail = ext_key_usage; |
| tail = &ext_key_usage->next; |
| |
| q = r; |
| } |
| } else if (strcmp(p, "ns_cert_type") == 0) { |
| while (q != NULL) { |
| if ((r = strchr(q, ',')) != NULL) { |
| *r++ = '\0'; |
| } |
| |
| if (strcmp(q, "ssl_client") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_CLIENT; |
| } else if (strcmp(q, "ssl_server") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_SERVER; |
| } else if (strcmp(q, "email") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_EMAIL; |
| } else if (strcmp(q, "object_signing") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING; |
| } else if (strcmp(q, "ssl_ca") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_SSL_CA; |
| } else if (strcmp(q, "email_ca") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_EMAIL_CA; |
| } else if (strcmp(q, "object_signing_ca") == 0) { |
| opt.ns_cert_type |= MBEDTLS_X509_NS_CERT_TYPE_OBJECT_SIGNING_CA; |
| } else { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| |
| q = r; |
| } |
| } else if (strcmp(p, "format") == 0) { |
| if (strcmp(q, "der") == 0) { |
| opt.format = FORMAT_DER; |
| } else if (strcmp(q, "pem") == 0) { |
| opt.format = FORMAT_PEM; |
| } else { |
| mbedtls_printf("Invalid argument for option %s\n", p); |
| goto usage; |
| } |
| } else { |
| goto usage; |
| } |
| } |
| |
| mbedtls_printf("\n"); |
| |
| /* |
| * 0. Seed the PRNG |
| */ |
| mbedtls_printf(" . Seeding the random number generator..."); |
| fflush(stdout); |
| |
| if ((ret = mbedtls_ctr_drbg_seed(&ctr_drbg, mbedtls_entropy_func, &entropy, |
| (const unsigned char *) pers, |
| strlen(pers))) != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_ctr_drbg_seed returned %d - %s\n", |
| ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| |
| // Parse serial to MPI |
| // |
| mbedtls_printf(" . Reading serial number..."); |
| fflush(stdout); |
| |
| if (serial_frmt == SERIAL_FRMT_HEX) { |
| ret = mbedtls_test_unhexify(serial, sizeof(serial), |
| opt.serial_hex, &serial_len); |
| } else { // SERIAL_FRMT_DEC || SERIAL_FRMT_UNSPEC |
| ret = parse_serial_decimal_format(serial, sizeof(serial), |
| opt.serial, &serial_len); |
| } |
| |
| if (ret != 0) { |
| mbedtls_printf(" failed\n ! Unable to parse serial\n"); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| |
| // Parse issuer certificate if present |
| // |
| if (!opt.selfsign && strlen(opt.issuer_crt)) { |
| /* |
| * 1.0.a. Load the certificates |
| */ |
| mbedtls_printf(" . Loading the issuer certificate ..."); |
| fflush(stdout); |
| |
| if ((ret = mbedtls_x509_crt_parse_file(&issuer_crt, opt.issuer_crt)) != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509_crt_parse_file " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| ret = mbedtls_x509_dn_gets(issuer_name, sizeof(issuer_name), |
| &issuer_crt.subject); |
| if (ret < 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509_dn_gets " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| opt.issuer_name = issuer_name; |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| #if defined(MBEDTLS_X509_CSR_PARSE_C) |
| // Parse certificate request if present |
| // |
| if (!opt.selfsign && strlen(opt.request_file)) { |
| /* |
| * 1.0.b. Load the CSR |
| */ |
| mbedtls_printf(" . Loading the certificate request ..."); |
| fflush(stdout); |
| |
| if ((ret = mbedtls_x509_csr_parse_file(&csr, opt.request_file)) != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509_csr_parse_file " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| ret = mbedtls_x509_dn_gets(subject_name, sizeof(subject_name), |
| &csr.subject); |
| if (ret < 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509_dn_gets " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| opt.subject_name = subject_name; |
| subject_key = &csr.pk; |
| |
| mbedtls_printf(" ok\n"); |
| } |
| #endif /* MBEDTLS_X509_CSR_PARSE_C */ |
| |
| /* |
| * 1.1. Load the keys |
| */ |
| if (!opt.selfsign && !strlen(opt.request_file)) { |
| mbedtls_printf(" . Loading the subject key ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_pk_parse_keyfile(&loaded_subject_key, opt.subject_key, |
| opt.subject_pwd, mbedtls_ctr_drbg_random, &ctr_drbg); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_pk_parse_keyfile " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| mbedtls_printf(" . Loading the issuer key ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_pk_parse_keyfile(&loaded_issuer_key, opt.issuer_key, |
| opt.issuer_pwd, mbedtls_ctr_drbg_random, &ctr_drbg); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_pk_parse_keyfile " |
| "returned -x%02x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| // Check if key and issuer certificate match |
| // |
| if (strlen(opt.issuer_crt)) { |
| if (mbedtls_pk_check_pair(&issuer_crt.pk, issuer_key, |
| mbedtls_ctr_drbg_random, &ctr_drbg) != 0) { |
| mbedtls_printf(" failed\n ! issuer_key does not match " |
| "issuer certificate\n\n"); |
| goto exit; |
| } |
| } |
| |
| mbedtls_printf(" ok\n"); |
| |
| if (opt.selfsign) { |
| opt.subject_name = opt.issuer_name; |
| subject_key = issuer_key; |
| } |
| |
| mbedtls_x509write_crt_set_subject_key(&crt, subject_key); |
| mbedtls_x509write_crt_set_issuer_key(&crt, issuer_key); |
| |
| /* |
| * 1.0. Check the names for validity |
| */ |
| if ((ret = mbedtls_x509write_crt_set_subject_name(&crt, opt.subject_name)) != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_subject_name " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| if ((ret = mbedtls_x509write_crt_set_issuer_name(&crt, opt.issuer_name)) != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_issuer_name " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" . Setting certificate values ..."); |
| fflush(stdout); |
| |
| mbedtls_x509write_crt_set_version(&crt, opt.version); |
| mbedtls_x509write_crt_set_md_alg(&crt, opt.md); |
| |
| ret = mbedtls_x509write_crt_set_serial_raw(&crt, serial, serial_len); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_serial_raw " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| ret = mbedtls_x509write_crt_set_validity(&crt, opt.not_before, opt.not_after); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_validity " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| |
| if (opt.version == MBEDTLS_X509_CRT_VERSION_3 && |
| opt.basic_constraints != 0) { |
| mbedtls_printf(" . Adding the Basic Constraints extension ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_x509write_crt_set_basic_constraints(&crt, opt.is_ca, |
| opt.max_pathlen); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! x509write_crt_set_basic_constraints " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| #if defined(MBEDTLS_MD_CAN_SHA1) |
| if (opt.version == MBEDTLS_X509_CRT_VERSION_3 && |
| opt.subject_identifier != 0) { |
| mbedtls_printf(" . Adding the Subject Key Identifier ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_x509write_crt_set_subject_key_identifier(&crt); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_subject" |
| "_key_identifier returned -0x%04x - %s\n\n", |
| (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| if (opt.version == MBEDTLS_X509_CRT_VERSION_3 && |
| opt.authority_identifier != 0) { |
| mbedtls_printf(" . Adding the Authority Key Identifier ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_x509write_crt_set_authority_key_identifier(&crt); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_authority_" |
| "key_identifier returned -0x%04x - %s\n\n", |
| (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| #endif /* MBEDTLS_MD_CAN_SHA1 */ |
| |
| if (opt.version == MBEDTLS_X509_CRT_VERSION_3 && |
| opt.key_usage != 0) { |
| mbedtls_printf(" . Adding the Key Usage extension ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_x509write_crt_set_key_usage(&crt, opt.key_usage); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_key_usage " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| if (opt.ext_key_usage) { |
| mbedtls_printf(" . Adding the Extended Key Usage extension ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_x509write_crt_set_ext_key_usage(&crt, opt.ext_key_usage); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf( |
| " failed\n ! mbedtls_x509write_crt_set_ext_key_usage returned -0x%02x - %s\n\n", |
| (unsigned int) -ret, |
| buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| if (opt.version == MBEDTLS_X509_CRT_VERSION_3 && |
| opt.ns_cert_type != 0) { |
| mbedtls_printf(" . Adding the NS Cert Type extension ..."); |
| fflush(stdout); |
| |
| ret = mbedtls_x509write_crt_set_ns_cert_type(&crt, opt.ns_cert_type); |
| if (ret != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! mbedtls_x509write_crt_set_ns_cert_type " |
| "returned -0x%04x - %s\n\n", (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| } |
| |
| /* |
| * 1.2. Writing the certificate |
| */ |
| mbedtls_printf(" . Writing the certificate..."); |
| fflush(stdout); |
| |
| if ((ret = write_certificate(&crt, opt.output_file, |
| mbedtls_ctr_drbg_random, &ctr_drbg)) != 0) { |
| mbedtls_strerror(ret, buf, sizeof(buf)); |
| mbedtls_printf(" failed\n ! write_certificate -0x%04x - %s\n\n", |
| (unsigned int) -ret, buf); |
| goto exit; |
| } |
| |
| mbedtls_printf(" ok\n"); |
| |
| exit_code = MBEDTLS_EXIT_SUCCESS; |
| |
| exit: |
| #if defined(MBEDTLS_X509_CSR_PARSE_C) |
| mbedtls_x509_csr_free(&csr); |
| #endif /* MBEDTLS_X509_CSR_PARSE_C */ |
| mbedtls_x509_crt_free(&issuer_crt); |
| mbedtls_x509write_crt_free(&crt); |
| mbedtls_pk_free(&loaded_subject_key); |
| mbedtls_pk_free(&loaded_issuer_key); |
| mbedtls_ctr_drbg_free(&ctr_drbg); |
| mbedtls_entropy_free(&entropy); |
| #if defined(MBEDTLS_USE_PSA_CRYPTO) |
| mbedtls_psa_crypto_free(); |
| #endif /* MBEDTLS_USE_PSA_CRYPTO */ |
| |
| mbedtls_exit(exit_code); |
| } |
| #endif /* MBEDTLS_X509_CRT_WRITE_C && MBEDTLS_X509_CRT_PARSE_C && |
| MBEDTLS_FS_IO && MBEDTLS_ENTROPY_C && MBEDTLS_CTR_DRBG_C && |
| MBEDTLS_ERROR_C && MBEDTLS_PEM_WRITE_C */ |