2 * Copyright 1995-2021 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
17 #include <openssl/bio.h>
18 #include <openssl/evp.h>
19 #include <openssl/conf.h>
20 #include <openssl/err.h>
21 #include <openssl/asn1.h>
22 #include <openssl/x509.h>
23 #include <openssl/x509v3.h>
24 #include <openssl/objects.h>
25 #include <openssl/pem.h>
26 #include <openssl/bn.h>
27 #include <openssl/lhash.h>
28 #include <openssl/rsa.h>
29 #ifndef OPENSSL_NO_DSA
30 # include <openssl/dsa.h>
33 #define BITS "default_bits"
34 #define KEYFILE "default_keyfile"
35 #define PROMPT "prompt"
36 #define DISTINGUISHED_NAME "distinguished_name"
37 #define ATTRIBUTES "attributes"
38 #define V3_EXTENSIONS "x509_extensions"
39 #define REQ_EXTENSIONS "req_extensions"
40 #define STRING_MASK "string_mask"
41 #define UTF8_IN "utf8"
43 #define DEFAULT_KEY_LENGTH 2048
44 #define MIN_KEY_LENGTH 512
45 #define DEFAULT_DAYS 30 /* default cert validity period in days */
46 #define UNSET_DAYS -2 /* -1 may be used for testing expiration checks */
47 #define EXT_COPY_UNSET -1
49 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
50 int mutlirdn, int attribs, unsigned long chtype);
51 static int prompt_info(X509_REQ *req,
52 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
53 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
54 int attribs, unsigned long chtype);
55 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
56 STACK_OF(CONF_VALUE) *attr, int attribs,
57 unsigned long chtype);
58 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
59 char *value, int nid, int n_min, int n_max,
60 unsigned long chtype);
61 static int add_DN_object(X509_NAME *n, char *text, const char *def,
62 char *value, int nid, int n_min, int n_max,
63 unsigned long chtype, int mval);
64 static int genpkey_cb(EVP_PKEY_CTX *ctx);
65 static int build_data(char *text, const char *def, char *value,
66 int n_min, int n_max, char *buf, const int buf_size,
67 const char *desc1, const char *desc2);
68 static int req_check_len(int len, int n_min, int n_max);
69 static int check_end(const char *str, const char *end);
70 static int join(char buf[], size_t buf_size, const char *name,
71 const char *tail, const char *desc);
72 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
73 int *pkey_type, long *pkeylen,
74 char **palgnam, ENGINE *keygen_engine);
76 static const char *section = "req";
77 static CONF *req_conf = NULL;
78 static CONF *addext_conf = NULL;
81 typedef enum OPTION_choice {
82 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
83 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
84 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
85 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
86 OPT_PKEYOPT, OPT_SIGOPT, OPT_VFYOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
87 OPT_VERIFY, OPT_NOENC, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
88 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
90 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL,
91 OPT_COPY_EXTENSIONS, OPT_ADDEXT, OPT_EXTENSIONS,
92 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
94 OPT_R_ENUM, OPT_PROV_ENUM
97 const OPTIONS req_options[] = {
98 OPT_SECTION("General"),
99 {"help", OPT_HELP, '-', "Display this summary"},
100 #ifndef OPENSSL_NO_ENGINE
101 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
102 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
103 "Specify engine to be used for key generation operations"},
105 {"in", OPT_IN, '<', "X.509 request input file"},
106 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
107 {"verify", OPT_VERIFY, '-', "Verify self-signature on the request"},
109 OPT_SECTION("Certificate"),
110 {"new", OPT_NEW, '-', "New request"},
111 {"config", OPT_CONFIG, '<', "Request template file"},
112 {"section", OPT_SECTION, 's', "Config section to use (default \"req\")"},
113 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
114 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
115 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
116 {"text", OPT_TEXT, '-', "Text form of request"},
117 {"x509", OPT_X509, '-',
118 "Output an x509 structure instead of a cert request"},
119 {"CA", OPT_CA, '<', "Issuer certificate to use with -x509"},
120 {"CAkey", OPT_CAKEY, 's',
121 "Issuer private key to use with -x509; default is -CA arg"},
122 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
123 {"subj", OPT_SUBJ, 's', "Set or modify subject of request or cert"},
124 {"subject", OPT_SUBJECT, '-',
125 "Print the subject of the output request or cert"},
126 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
127 "Deprecated; multi-valued RDNs support is always on."},
128 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
129 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
130 {"copy_extensions", OPT_COPY_EXTENSIONS, 's',
131 "copy extensions from request when using -x509"},
132 {"addext", OPT_ADDEXT, 's',
133 "Additional cert extension key=value pair (may be given more than once)"},
134 {"extensions", OPT_EXTENSIONS, 's',
135 "Cert extension section (override value in config file)"},
136 {"reqexts", OPT_REQEXTS, 's',
137 "Request extension section (override value in config file)"},
138 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
140 OPT_SECTION("Keys and Signing"),
141 {"key", OPT_KEY, 's', "Private key to use"},
142 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
143 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
144 {"keyout", OPT_KEYOUT, '>', "File to save newly created private key"},
145 {"passin", OPT_PASSIN, 's', "Private key and certificate password source"},
146 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
147 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
148 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
149 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
150 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
151 {"", OPT_MD, '-', "Any supported digest"},
153 OPT_SECTION("Output"),
154 {"out", OPT_OUT, '>', "Output file"},
155 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
156 {"batch", OPT_BATCH, '-',
157 "Do not ask anything during request generation"},
158 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
159 {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
160 {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
161 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
162 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
163 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
171 * An LHASH of strings, where each string is an extension name.
173 static unsigned long ext_name_hash(const OPENSSL_STRING *a)
175 return OPENSSL_LH_strhash((const char *)a);
178 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
180 return strcmp((const char *)a, (const char *)b);
183 static void exts_cleanup(OPENSSL_STRING *x)
185 OPENSSL_free((char *)x);
189 * Is the |kv| key already duplicated? This is remarkably tricky to get right.
190 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error.
192 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
198 /* Skip leading whitespace, make a copy. */
199 while (*kv && isspace(*kv))
202 if ((p = strchr(kv, '=')) == NULL)
205 if ((kv = OPENSSL_strdup(kv)) == NULL)
208 /* Skip trailing space before the equal sign. */
209 for (p = kv + off; p > kv; --p)
218 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
219 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING *)kv);
223 } else if (lh_OPENSSL_STRING_error(addexts)) {
231 int req_main(int argc, char **argv)
233 ASN1_INTEGER *serial = NULL;
235 ENGINE *e = NULL, *gen_eng = NULL;
236 EVP_PKEY *pkey = NULL, *CAkey = NULL;
237 EVP_PKEY_CTX *genctx = NULL;
238 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
239 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
240 X509 *new_x509 = NULL, *CAcert = NULL;
241 X509_REQ *req = NULL;
242 const EVP_CIPHER *cipher = NULL;
243 const EVP_MD *md_alg = NULL, *digest = NULL;
244 int ext_copy = EXT_COPY_UNSET;
245 BIO *addext_bio = NULL;
246 char *extensions = NULL;
247 const char *infile = NULL, *CAfile = NULL, *CAkeyfile = NULL;
248 char *outfile = NULL, *keyfile = NULL, *digestname = NULL;
249 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
250 char *passin = NULL, *passout = NULL;
251 char *nofree_passin = NULL, *nofree_passout = NULL;
252 char *req_exts = NULL, *subj = NULL;
253 X509_NAME *fsubj = NULL;
254 char *template = default_config_file, *keyout = NULL;
255 const char *keyalg = NULL;
257 int days = UNSET_DAYS;
258 int ret = 1, gen_x509 = 0, i = 0, newreq = 0, verbose = 0;
260 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
261 int modulus = 0, multirdn = 1, verify = 0, noout = 0, text = 0;
262 int noenc = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
263 long newkey_len = -1;
264 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
266 #ifndef OPENSSL_NO_DES
267 cipher = EVP_des_ede3_cbc();
270 prog = opt_init(argc, argv, req_options);
271 while ((o = opt_next()) != OPT_EOF) {
276 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
279 opt_help(req_options);
283 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
287 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
291 e = setup_engine(opt_arg(), 0);
293 case OPT_KEYGEN_ENGINE:
294 #ifndef OPENSSL_NO_ENGINE
295 gen_eng = setup_engine(opt_arg(), 0);
296 if (gen_eng == NULL) {
297 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
312 template = opt_arg();
318 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
331 passargin = opt_arg();
334 passargout = opt_arg();
341 if (!opt_provider(o))
349 if (pkeyopts == NULL)
350 pkeyopts = sk_OPENSSL_STRING_new_null();
352 || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
357 sigopts = sk_OPENSSL_STRING_new_null();
358 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
363 vfyopts = sk_OPENSSL_STRING_new_null();
364 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
390 chtype = MBSTRING_UTF8;
393 if (!set_nameopt(opt_arg()))
397 if (!set_cert_ex(&reqflag, opt_arg()))
410 CAkeyfile = opt_arg();
413 days = atoi(opt_arg());
415 BIO_printf(bio_err, "%s: -days parameter arg must be >= -1\n",
421 if (serial != NULL) {
422 BIO_printf(bio_err, "Serial number supplied twice\n");
425 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
435 case OPT_MULTIVALUE_RDN:
438 case OPT_COPY_EXTENSIONS:
439 if (!set_ext_copy(&ext_copy, opt_arg())) {
440 BIO_printf(bio_err, "Invalid extension copy option: \"%s\"\n",
447 if (addexts == NULL) {
448 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
449 addext_bio = BIO_new(BIO_s_mem());
450 if (addexts == NULL || addext_bio == NULL)
453 i = duplicated(addexts, p);
455 BIO_printf(bio_err, "Duplicate extension: %s\n", p);
458 if (i < 0 || BIO_printf(addext_bio, "%s\n", p) < 0)
462 extensions = opt_arg();
465 req_exts = opt_arg();
468 newreq = precert = 1;
471 digestname = opt_unknown();
476 /* No extra arguments. */
477 argc = opt_num_rest();
482 if (digestname != NULL) {
483 if (!opt_md(digestname, &md_alg))
489 if (days != UNSET_DAYS)
490 BIO_printf(bio_err, "Ignoring -days without -x509; not generating a certificate\n");
491 if (ext_copy == EXT_COPY_NONE)
492 BIO_printf(bio_err, "Ignoring -copy_extensions 'none' when -x509 is not given\n");
494 if (gen_x509 && infile == NULL)
497 if (!app_passwd(passargin, passargout, &passin, &passout)) {
498 BIO_printf(bio_err, "Error getting passwords\n");
502 if ((req_conf = app_load_config_verbose(template, verbose)) == NULL)
504 if (addext_bio != NULL) {
507 "Using additional configuration from -addext options\n");
508 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
511 if (template != default_config_file && !app_load_modules(req_conf))
514 if (req_conf != NULL) {
515 p = NCONF_get_string(req_conf, NULL, "oid_file");
521 oid_bio = BIO_new_file(p, "r");
522 if (oid_bio == NULL) {
525 "Problems opening '%s' for extra OIDs\n", p);
526 ERR_print_errors(bio_err);
529 OBJ_create_objects(oid_bio);
534 if (!add_oid_section(req_conf))
537 if (md_alg == NULL) {
538 p = NCONF_get_string(req_conf, section, "default_md");
542 if (!opt_md(p, &md_alg))
548 if (extensions == NULL) {
549 extensions = NCONF_get_string(req_conf, section, V3_EXTENSIONS);
550 if (extensions == NULL)
553 if (extensions != NULL) {
554 /* Check syntax of file */
557 X509V3_set_ctx_test(&ctx);
558 X509V3_set_nconf(&ctx, req_conf);
559 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
561 "Error checking x509 extension section %s\n",
566 if (addext_conf != NULL) {
567 /* Check syntax of command line extensions */
570 X509V3_set_ctx_test(&ctx);
571 X509V3_set_nconf(&ctx, addext_conf);
572 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
573 BIO_printf(bio_err, "Error checking extensions defined using -addext\n");
578 if (passin == NULL) {
579 passin = nofree_passin =
580 NCONF_get_string(req_conf, section, "input_password");
585 if (passout == NULL) {
586 passout = nofree_passout =
587 NCONF_get_string(req_conf, section, "output_password");
592 p = NCONF_get_string(req_conf, section, STRING_MASK);
596 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
597 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
601 if (chtype != MBSTRING_UTF8) {
602 p = NCONF_get_string(req_conf, section, UTF8_IN);
605 else if (strcmp(p, "yes") == 0)
606 chtype = MBSTRING_UTF8;
609 if (req_exts == NULL) {
610 req_exts = NCONF_get_string(req_conf, section, REQ_EXTENSIONS);
611 if (req_exts == NULL)
614 if (req_exts != NULL) {
615 /* Check syntax of file */
618 X509V3_set_ctx_test(&ctx);
619 X509V3_set_nconf(&ctx, req_conf);
620 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
622 "Error checking request extension section %s\n",
628 if (keyfile != NULL) {
629 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
632 app_RAND_load_conf(req_conf, section);
635 if (newreq && pkey == NULL) {
636 app_RAND_load_conf(req_conf, section);
638 if (!NCONF_get_number(req_conf, section, BITS, &newkey_len)) {
639 newkey_len = DEFAULT_KEY_LENGTH;
642 if (keyalg != NULL) {
643 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey_len,
644 &keyalgstr, gen_eng);
649 if (newkey_len < MIN_KEY_LENGTH
650 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
651 BIO_printf(bio_err, "Private key length is too short,\n");
652 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld.\n",
653 MIN_KEY_LENGTH, newkey_len);
657 if (pkey_type == EVP_PKEY_RSA
658 && newkey_len > OPENSSL_RSA_MAX_MODULUS_BITS)
660 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
661 " Your key size is %ld! Larger key size may behave not as expected.\n",
662 OPENSSL_RSA_MAX_MODULUS_BITS, newkey_len);
664 #ifndef OPENSSL_NO_DSA
665 if (pkey_type == EVP_PKEY_DSA
666 && newkey_len > OPENSSL_DSA_MAX_MODULUS_BITS)
668 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
669 " Your key size is %ld! Larger key size may behave not as expected.\n",
670 OPENSSL_DSA_MAX_MODULUS_BITS, newkey_len);
673 if (genctx == NULL) {
674 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey_len,
675 &keyalgstr, gen_eng);
680 if (pkeyopts != NULL) {
682 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
683 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
684 if (pkey_ctrl_string(genctx, genopt) <= 0) {
685 BIO_printf(bio_err, "Key parameter error \"%s\"\n", genopt);
691 if (pkey_type == EVP_PKEY_EC) {
692 BIO_printf(bio_err, "Generating an EC private key\n");
694 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr);
697 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
698 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
700 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
701 BIO_puts(bio_err, "Error generating key\n");
705 EVP_PKEY_CTX_free(genctx);
708 if (keyout == NULL) {
709 keyout = NCONF_get_string(req_conf, section, KEYFILE);
715 BIO_printf(bio_err, "Writing new private key to stdout\n");
717 BIO_printf(bio_err, "Writing new private key to '%s'\n", keyout);
718 out = bio_open_owner(keyout, outformat, newreq);
722 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
725 p = NCONF_get_string(req_conf, section, "encrypt_key");
729 if ((p != NULL) && (strcmp(p, "no") == 0))
737 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
738 NULL, 0, NULL, passout)) {
739 if ((ERR_GET_REASON(ERR_peek_error()) ==
740 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
749 BIO_printf(bio_err, "-----\n");
753 * subj is expected to be in the format /type0=value0/type1=value1/type2=...
754 * where characters may be escaped by \
757 && (fsubj = parse_name(subj, chtype, multirdn, "subject")) == NULL)
761 req = load_csr(infile, informat, "X509 request");
766 if (CAkeyfile == NULL)
768 if (CAkeyfile != NULL) {
769 if (CAfile == NULL) {
771 "Ignoring -CAkey option since no -CA option is given\n");
773 if ((CAkey = load_key(CAkeyfile, FORMAT_PEM,
774 0, passin, e, "issuer private key")) == NULL)
778 if (CAfile != NULL) {
781 "Warning: Ignoring -CA option without -x509\n");
783 if (CAkeyfile == NULL) {
785 "Need to give the -CAkey option if using -CA\n");
788 if ((CAcert = load_cert_pass(CAfile, 1, passin,
789 "issuer certificate")) == NULL)
791 if (!X509_check_private_key(CAcert, CAkey)) {
793 "Issuer certificate and key do not match\n");
798 if (newreq || gen_x509) {
799 if (pkey == NULL /* can happen only if !newreq */) {
800 BIO_printf(bio_err, "Must provide a signature key using -key\n");
805 req = X509_REQ_new();
810 if (!make_REQ(req, pkey, fsubj, multirdn, !gen_x509, chtype)){
811 BIO_printf(bio_err, "Error making certificate request\n");
816 EVP_PKEY *pub_key = X509_REQ_get0_pubkey(req);
818 X509_NAME *issuer = CAcert != NULL ? X509_get_subject_name(CAcert) :
819 X509_REQ_get_subject_name(req);
820 X509_NAME *n_subj = fsubj != NULL ? fsubj :
821 X509_REQ_get_subject_name(req);
823 if ((new_x509 = X509_new_ex(app_get0_libctx(),
824 app_get0_propq())) == NULL)
827 if (serial != NULL) {
828 if (!X509_set_serialNumber(new_x509, serial))
831 if (!rand_serial(NULL, X509_get_serialNumber(new_x509)))
835 if (!X509_set_issuer_name(new_x509, issuer))
837 if (days == UNSET_DAYS) {
840 if (!set_cert_times(new_x509, NULL, NULL, days))
842 if (!X509_set_subject_name(new_x509, n_subj))
844 if (!pub_key || !X509_set_pubkey(new_x509, pub_key))
846 if (ext_copy == EXT_COPY_UNSET) {
847 BIO_printf(bio_err, "Warning: No -copy_extensions given; ignoring any extensions in the request\n");
848 } else if (!copy_extensions(new_x509, req, ext_copy)) {
849 BIO_printf(bio_err, "Error copying extensions from request\n");
853 /* Set up V3 context struct */
854 X509V3_set_ctx(&ext_ctx, CAcert != NULL ? CAcert : new_x509,
855 new_x509, NULL, NULL, X509V3_CTX_REPLACE);
856 if (CAcert == NULL) { /* self-issued, possibly self-signed */
857 if (!X509V3_set_issuer_pkey(&ext_ctx, pkey)) /* prepare right AKID */
860 if (!X509_check_private_key(new_x509, pkey))
862 "Warning: Signature key and public key of cert do not match\n");
865 X509V3_set_nconf(&ext_ctx, req_conf);
868 if (extensions != NULL
869 && !X509V3_EXT_add_nconf(req_conf, &ext_ctx, extensions,
871 BIO_printf(bio_err, "Error adding x509 extensions from section %s\n",
875 if (addext_conf != NULL
876 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
878 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
882 /* If a pre-cert was requested, we need to add a poison extension */
884 if (X509_add1_ext_i2d(new_x509, NID_ct_precert_poison,
886 BIO_printf(bio_err, "Error adding poison extension\n");
891 i = do_X509_sign(new_x509, CAcert != NULL ? CAkey : pkey,
892 digest, sigopts, &ext_ctx);
898 /* Set up V3 context struct */
899 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
900 X509V3_set_nconf(&ext_ctx, req_conf);
904 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
906 BIO_printf(bio_err, "Error adding request extensions from section %s\n",
910 if (addext_conf != NULL
911 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
913 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
916 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
922 if (subj != NULL && !newreq && !gen_x509) {
924 BIO_printf(out, "Modifying subject of certificate request\n");
925 print_name(out, "Old subject=", X509_REQ_get_subject_name(req));
928 if (!X509_REQ_set_subject_name(req, fsubj)) {
929 BIO_printf(bio_err, "Error modifying subject of certificate request\n");
934 print_name(out, "New subject=", X509_REQ_get_subject_name(req));
939 EVP_PKEY *tpubkey = pkey;
941 if (tpubkey == NULL) {
942 tpubkey = X509_REQ_get0_pubkey(req);
947 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
952 BIO_printf(bio_err, "Certificate request self-signature verify failure\n");
953 ERR_print_errors(bio_err);
955 BIO_printf(bio_err, "Certificate request self-signature verify OK\n");
959 if (noout && !text && !modulus && !subject && !pubkey) {
964 out = bio_open_default(outfile,
965 keyout != NULL && outfile != NULL &&
966 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
972 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
974 if (tpubkey == NULL) {
975 BIO_printf(bio_err, "Error getting public key\n");
978 PEM_write_bio_PUBKEY(out, tpubkey);
983 ret = X509_print_ex(out, new_x509, get_nameopt(), reqflag);
985 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
989 BIO_printf(bio_err, "Error printing certificate\n");
991 BIO_printf(bio_err, "Error printing certificate request\n");
997 print_name(out, "subject=", gen_x509
998 ? X509_get_subject_name(new_x509)
999 : X509_REQ_get_subject_name(req));
1006 tpubkey = X509_get0_pubkey(new_x509);
1008 tpubkey = X509_REQ_get0_pubkey(req);
1009 if (tpubkey == NULL) {
1010 fprintf(stdout, "Modulus is unavailable\n");
1013 fprintf(stdout, "Modulus=");
1014 if (EVP_PKEY_is_a(tpubkey, "RSA")) {
1017 /* Every RSA key has an 'n' */
1018 EVP_PKEY_get_bn_param(pkey, "n", &n);
1022 fprintf(stdout, "Wrong Algorithm type");
1024 fprintf(stdout, "\n");
1027 if (!noout && !gen_x509) {
1028 if (outformat == FORMAT_ASN1)
1029 i = i2d_X509_REQ_bio(out, req);
1031 i = PEM_write_bio_X509_REQ_NEW(out, req);
1033 i = PEM_write_bio_X509_REQ(out, req);
1035 BIO_printf(bio_err, "Unable to write certificate request\n");
1039 if (!noout && gen_x509 && new_x509 != NULL) {
1040 if (outformat == FORMAT_ASN1)
1041 i = i2d_X509_bio(out, new_x509);
1043 i = PEM_write_bio_X509(out, new_x509);
1045 BIO_printf(bio_err, "Unable to write X509 certificate\n");
1052 ERR_print_errors(bio_err);
1054 NCONF_free(req_conf);
1055 NCONF_free(addext_conf);
1056 BIO_free(addext_bio);
1058 EVP_PKEY_free(pkey);
1059 EVP_PKEY_CTX_free(genctx);
1060 sk_OPENSSL_STRING_free(pkeyopts);
1061 sk_OPENSSL_STRING_free(sigopts);
1062 sk_OPENSSL_STRING_free(vfyopts);
1063 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
1064 lh_OPENSSL_STRING_free(addexts);
1065 #ifndef OPENSSL_NO_ENGINE
1066 release_engine(gen_eng);
1068 OPENSSL_free(keyalgstr);
1070 X509_NAME_free(fsubj);
1071 X509_free(new_x509);
1073 EVP_PKEY_free(CAkey);
1074 ASN1_INTEGER_free(serial);
1076 if (passin != nofree_passin)
1077 OPENSSL_free(passin);
1078 if (passout != nofree_passout)
1079 OPENSSL_free(passout);
1083 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
1084 int multirdn, int attribs, unsigned long chtype)
1088 STACK_OF(CONF_VALUE) *dn_sk = NULL, *attr_sk = NULL;
1089 char *tmp, *dn_sect, *attr_sect;
1091 tmp = NCONF_get_string(req_conf, section, PROMPT);
1094 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1097 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1098 if (dn_sect == NULL) {
1101 dn_sk = NCONF_get_section(req_conf, dn_sect);
1102 if (dn_sk == NULL) {
1103 BIO_printf(bio_err, "Unable to get '%s' section\n", dn_sect);
1108 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1109 if (attr_sect == NULL) {
1112 attr_sk = NCONF_get_section(req_conf, attr_sect);
1113 if (attr_sk == NULL) {
1114 BIO_printf(bio_err, "Unable to get '%s' section\n", attr_sect);
1119 if (!X509_REQ_set_version(req, 0L)) /* so far there is only version 1 */
1123 i = X509_REQ_set_subject_name(req, fsubj);
1125 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1127 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1132 if (!X509_REQ_set_pubkey(req, pkey))
1140 static int prompt_info(X509_REQ *req,
1141 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1142 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1143 int attribs, unsigned long chtype)
1153 X509_NAME *subj = X509_REQ_get_subject_name(req);
1157 "You are about to be asked to enter information that will be incorporated\n");
1158 BIO_printf(bio_err, "into your certificate request.\n");
1160 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1162 "There are quite a few fields but you can leave some blank\n");
1164 "For some fields there will be a default value,\n");
1166 "If you enter '.', the field will be left blank.\n");
1167 BIO_printf(bio_err, "-----\n");
1170 if (sk_CONF_VALUE_num(dn_sk)) {
1175 if (sk_CONF_VALUE_num(dn_sk) <= i)
1178 v = sk_CONF_VALUE_value(dn_sk, i);
1181 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1182 !check_end(type, "_default") || !check_end(type, "_value"))
1185 * Skip past any leading X. X: X, etc to allow for multiple
1188 for (p = v->name; *p; p++)
1189 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1201 /* If OBJ not recognised ignore it */
1202 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1204 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1206 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1211 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1213 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1218 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1220 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1225 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1227 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1232 if (!add_DN_object(subj, v->value, def, value, nid,
1233 n_min, n_max, chtype, mval))
1236 if (X509_NAME_entry_count(subj) == 0) {
1237 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1242 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1245 "\nPlease enter the following 'extra' attributes\n");
1247 "to be sent with your certificate request\n");
1254 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1257 v = sk_CONF_VALUE_value(attr_sk, i);
1259 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1262 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1264 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1270 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1272 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1278 if (!join(buf, sizeof(buf), type, "_min", "Name"))
1280 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1285 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1287 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1292 if (!add_attribute_object(req,
1293 v->value, def, value, nid, n_min,
1299 BIO_printf(bio_err, "No template, please set one up.\n");
1307 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1308 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1309 unsigned long chtype)
1311 int i, spec_char, plus_char;
1317 subj = X509_REQ_get_subject_name(req);
1319 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1321 v = sk_CONF_VALUE_value(dn_sk, i);
1325 * Skip past any leading X. X: X, etc to allow for multiple instances
1327 for (p = v->name; *p; p++) {
1328 #ifndef CHARSET_EBCDIC
1329 spec_char = (*p == ':' || *p == ',' || *p == '.');
1331 spec_char = (*p == os_toascii[':'] || *p == os_toascii[',']
1332 || *p == os_toascii['.']);
1341 #ifndef CHARSET_EBCDIC
1342 plus_char = (*type == '+');
1344 plus_char = (*type == os_toascii['+']);
1352 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1353 (unsigned char *)v->value, -1, -1,
1359 if (!X509_NAME_entry_count(subj)) {
1360 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1364 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1365 v = sk_CONF_VALUE_value(attr_sk, i);
1366 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1367 (unsigned char *)v->value, -1))
1374 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1375 char *value, int nid, int n_min, int n_max,
1376 unsigned long chtype, int mval)
1381 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1382 "DN value", "DN default");
1383 if ((ret == 0) || (ret == 1))
1387 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1388 (unsigned char *)buf, -1, -1, mval))
1394 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1395 char *value, int nid, int n_min,
1396 int n_max, unsigned long chtype)
1401 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1402 "Attribute value", "Attribute default");
1403 if ((ret == 0) || (ret == 1))
1407 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1408 (unsigned char *)buf, -1)) {
1409 BIO_printf(bio_err, "Error adding attribute\n");
1410 ERR_print_errors(bio_err);
1417 static int build_data(char *text, const char *def, char *value,
1418 int n_min, int n_max, char *buf, const int buf_size,
1419 const char *desc1, const char *desc2)
1424 BIO_printf(bio_err, "%s [%s]:", text, def);
1425 (void)BIO_flush(bio_err);
1426 if (value != NULL) {
1427 if (!join(buf, buf_size, value, "\n", desc1))
1429 BIO_printf(bio_err, "%s\n", value);
1433 if (!fgets(buf, buf_size, stdin))
1443 if (buf[0] == '\n') {
1444 if ((def == NULL) || (def[0] == '\0'))
1446 if (!join(buf, buf_size, def, "\n", desc2))
1448 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1453 if (buf[i - 1] != '\n') {
1454 BIO_printf(bio_err, "Missing newline at end of input\n");
1458 #ifdef CHARSET_EBCDIC
1459 ebcdic2ascii(buf, buf, i);
1461 if (!req_check_len(i, n_min, n_max)) {
1469 static int req_check_len(int len, int n_min, int n_max)
1471 if (n_min > 0 && len < n_min) {
1473 "String too short, must be at least %d bytes long\n", n_min);
1476 if (n_max >= 0 && len > n_max) {
1478 "String too long, must be at most %d bytes long\n", n_max);
1484 /* Check if the end of a string matches 'end' */
1485 static int check_end(const char *str, const char *end)
1494 tmp = str + slen - elen;
1495 return strcmp(tmp, end);
1499 * Merge the two strings together into the result buffer checking for
1500 * overflow and producing an error message if there is.
1502 static int join(char buf[], size_t buf_size, const char *name,
1503 const char *tail, const char *desc)
1505 const size_t name_len = strlen(name), tail_len = strlen(tail);
1507 if (name_len + tail_len + 1 > buf_size) {
1508 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1511 memcpy(buf, name, name_len);
1512 memcpy(buf + name_len, tail, tail_len + 1);
1516 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1517 int *pkey_type, long *pkeylen,
1518 char **palgnam, ENGINE *keygen_engine)
1520 EVP_PKEY_CTX *gctx = NULL;
1521 EVP_PKEY *param = NULL;
1524 const char *paramfile = NULL;
1527 *pkey_type = EVP_PKEY_RSA;
1529 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1530 *pkey_type = EVP_PKEY_RSA;
1531 keylen = atol(gstr);
1533 } else if (strncmp(gstr, "param:", 6) == 0) {
1534 paramfile = gstr + 6;
1536 const char *p = strchr(gstr, ':');
1539 const EVP_PKEY_ASN1_METHOD *ameth;
1546 * The lookup of a the string will cover all engines so keep a note
1547 * of the implementation.
1550 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1552 if (ameth == NULL) {
1553 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1557 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1558 #ifndef OPENSSL_NO_ENGINE
1559 finish_engine(tmpeng);
1561 if (*pkey_type == EVP_PKEY_RSA) {
1563 keylen = atol(p + 1);
1568 } else if (p != NULL) {
1573 if (paramfile != NULL) {
1574 pbio = BIO_new_file(paramfile, "r");
1576 BIO_printf(bio_err, "Cannot open parameter file %s\n", paramfile);
1579 param = PEM_read_bio_Parameters(pbio, NULL);
1581 if (param == NULL) {
1584 (void)BIO_reset(pbio);
1585 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1587 param = X509_get_pubkey(x);
1594 if (param == NULL) {
1595 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1598 if (*pkey_type == -1) {
1599 *pkey_type = EVP_PKEY_id(param);
1600 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1601 BIO_printf(bio_err, "Key type does not match parameters\n");
1602 EVP_PKEY_free(param);
1607 if (palgnam != NULL) {
1608 const EVP_PKEY_ASN1_METHOD *ameth;
1612 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1613 if (ameth == NULL) {
1614 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1617 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1618 *palgnam = OPENSSL_strdup(anam);
1619 #ifndef OPENSSL_NO_ENGINE
1620 finish_engine(tmpeng);
1624 if (param != NULL) {
1625 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1626 *pkeylen = EVP_PKEY_bits(param);
1627 EVP_PKEY_free(param);
1629 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1633 BIO_puts(bio_err, "Error allocating keygen context\n");
1637 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1638 BIO_puts(bio_err, "Error initializing keygen context\n");
1639 EVP_PKEY_CTX_free(gctx);
1642 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1643 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1644 BIO_puts(bio_err, "Error setting RSA keysize\n");
1645 EVP_PKEY_CTX_free(gctx);
1653 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1656 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1658 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1667 BIO_write(b, &c, 1);