2 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
15 #include <openssl/bio.h>
16 #include <openssl/evp.h>
17 #include <openssl/conf.h>
18 #include <openssl/err.h>
19 #include <openssl/asn1.h>
20 #include <openssl/x509.h>
21 #include <openssl/x509v3.h>
22 #include <openssl/objects.h>
23 #include <openssl/pem.h>
24 #include <openssl/bn.h>
25 #ifndef OPENSSL_NO_RSA
26 # include <openssl/rsa.h>
28 #ifndef OPENSSL_NO_DSA
29 # include <openssl/dsa.h>
34 #define BITS "default_bits"
35 #define KEYFILE "default_keyfile"
36 #define PROMPT "prompt"
37 #define DISTINGUISHED_NAME "distinguished_name"
38 #define ATTRIBUTES "attributes"
39 #define V3_EXTENSIONS "x509_extensions"
40 #define REQ_EXTENSIONS "req_extensions"
41 #define STRING_MASK "string_mask"
42 #define UTF8_IN "utf8"
44 #define DEFAULT_KEY_LENGTH 2048
45 #define MIN_KEY_LENGTH 512
47 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn,
48 int attribs, unsigned long chtype);
49 static int build_subject(X509_REQ *req, const char *subj, 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 req_check_len(int len, int n_min, int n_max);
66 static int check_end(const char *str, const char *end);
67 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
68 int *pkey_type, long *pkeylen,
69 char **palgnam, ENGINE *keygen_engine);
70 static CONF *req_conf = NULL;
73 typedef enum OPTION_choice {
74 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
75 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
76 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
77 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_RAND, OPT_NEWKEY,
78 OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
79 OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
80 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
81 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_EXTENSIONS,
82 OPT_REQEXTS, OPT_PRECERT, OPT_MD
85 const OPTIONS req_options[] = {
86 {"help", OPT_HELP, '-', "Display this summary"},
87 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
88 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
89 {"in", OPT_IN, '<', "Input file"},
90 {"out", OPT_OUT, '>', "Output file"},
91 {"key", OPT_KEY, 's', "Private key to use"},
92 {"keyform", OPT_KEYFORM, 'f', "Key file format"},
93 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
94 {"new", OPT_NEW, '-', "New request"},
95 {"config", OPT_CONFIG, '<', "Request template file"},
96 {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
97 {"passin", OPT_PASSIN, 's', "Private key password source"},
98 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
99 {"rand", OPT_RAND, 's',
100 "Load the file(s) into the random number generator"},
101 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
102 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
103 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
104 {"batch", OPT_BATCH, '-',
105 "Do not ask anything during request generation"},
106 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
107 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
108 {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
109 {"nodes", OPT_NODES, '-', "Don't encrypt the output key"},
110 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
111 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
112 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
113 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
114 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
115 {"text", OPT_TEXT, '-', "Text form of request"},
116 {"x509", OPT_X509, '-',
117 "Output a x509 structure instead of a cert request"},
118 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
119 {"subj", OPT_SUBJ, 's', "Set or modify request subject"},
120 {"subject", OPT_SUBJECT, '-', "Output the request's subject"},
121 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
122 "Enable support for multivalued RDNs"},
123 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
124 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
125 {"extensions", OPT_EXTENSIONS, 's',
126 "Cert extension section (override value in config file)"},
127 {"reqexts", OPT_REQEXTS, 's',
128 "Request extension section (override value in config file)"},
129 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
130 {"", OPT_MD, '-', "Any supported digest"},
131 #ifndef OPENSSL_NO_ENGINE
132 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
133 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
134 "Specify engine to be used for key generation operations"},
139 int req_main(int argc, char **argv)
141 ASN1_INTEGER *serial = NULL;
142 BIO *in = NULL, *out = NULL;
143 ENGINE *e = NULL, *gen_eng = NULL;
144 EVP_PKEY *pkey = NULL;
145 EVP_PKEY_CTX *genctx = NULL;
146 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
148 X509_REQ *req = NULL;
149 const EVP_CIPHER *cipher = NULL;
150 const EVP_MD *md_alg = NULL, *digest = NULL;
151 char *extensions = NULL, *infile = NULL;
152 char *outfile = NULL, *keyfile = NULL, *inrand = NULL;
153 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
154 char *passin = NULL, *passout = NULL;
155 char *nofree_passin = NULL, *nofree_passout = NULL;
156 char *req_exts = NULL, *subj = NULL;
157 char *template = default_config_file, *keyout = NULL;
158 const char *keyalg = NULL;
160 int ret = 1, x509 = 0, days = 30, i = 0, newreq = 0, verbose = 0;
161 int pkey_type = -1, private = 0;
162 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
163 int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
164 int nodes = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
166 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
168 #ifndef OPENSSL_NO_DES
169 cipher = EVP_des_ede3_cbc();
172 prog = opt_init(argc, argv, req_options);
173 while ((o = opt_next()) != OPT_EOF) {
178 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
181 opt_help(req_options);
185 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
189 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
193 e = setup_engine(opt_arg(), 0);
195 case OPT_KEYGEN_ENGINE:
196 #ifndef OPENSSL_NO_ENGINE
197 gen_eng = ENGINE_by_id(opt_arg());
198 if (gen_eng == NULL) {
199 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
214 template = opt_arg();
217 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
230 passargin = opt_arg();
233 passargout = opt_arg();
244 pkeyopts = sk_OPENSSL_STRING_new_null();
245 if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
250 sigopts = sk_OPENSSL_STRING_new_null();
251 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
276 chtype = MBSTRING_UTF8;
279 if (!set_nameopt(opt_arg()))
283 if (!set_cert_ex(&reqflag, opt_arg()))
293 days = atoi(opt_arg());
296 if (serial != NULL) {
297 BIO_printf(bio_err, "Serial number supplied twice\n");
300 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
310 case OPT_MULTIVALUE_RDN:
314 extensions = opt_arg();
317 req_exts = opt_arg();
320 newreq = precert = 1;
323 if (!opt_md(opt_unknown(), &md_alg))
329 argc = opt_num_rest();
333 if (x509 && infile == NULL)
336 /* TODO: simplify this as pkey is still always NULL here */
337 private = newreq && (pkey == NULL) ? 1 : 0;
339 if (!app_passwd(passargin, passargout, &passin, &passout)) {
340 BIO_printf(bio_err, "Error getting passwords\n");
345 BIO_printf(bio_err, "Using configuration from %s\n", template);
346 req_conf = app_load_config(template);
347 if (template != default_config_file && !app_load_modules(req_conf))
350 if (req_conf != NULL) {
351 p = NCONF_get_string(req_conf, NULL, "oid_file");
357 oid_bio = BIO_new_file(p, "r");
358 if (oid_bio == NULL) {
360 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
361 ERR_print_errors(bio_err);
364 OBJ_create_objects(oid_bio);
369 if (!add_oid_section(req_conf))
372 if (md_alg == NULL) {
373 p = NCONF_get_string(req_conf, SECTION, "default_md");
377 if (!opt_md(p, &md_alg))
383 if (extensions == NULL) {
384 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
385 if (extensions == NULL)
388 if (extensions != NULL) {
389 /* Check syntax of file */
391 X509V3_set_ctx_test(&ctx);
392 X509V3_set_nconf(&ctx, req_conf);
393 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
395 "Error Loading extension section %s\n", extensions);
400 if (passin == NULL) {
401 passin = nofree_passin =
402 NCONF_get_string(req_conf, SECTION, "input_password");
407 if (passout == NULL) {
408 passout = nofree_passout =
409 NCONF_get_string(req_conf, SECTION, "output_password");
414 p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
418 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
419 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
423 if (chtype != MBSTRING_UTF8) {
424 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
427 else if (strcmp(p, "yes") == 0)
428 chtype = MBSTRING_UTF8;
431 if (req_exts == NULL) {
432 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
433 if (req_exts == NULL)
436 if (req_exts != NULL) {
437 /* Check syntax of file */
439 X509V3_set_ctx_test(&ctx);
440 X509V3_set_nconf(&ctx, req_conf);
441 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
443 "Error Loading request extension section %s\n",
449 if (keyfile != NULL) {
450 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
452 /* load_key() has already printed an appropriate message */
455 char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
456 if (randfile == NULL)
458 app_RAND_load_file(randfile, 0);
462 if (newreq && (pkey == NULL)) {
463 char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
464 if (randfile == NULL)
466 app_RAND_load_file(randfile, 0);
468 app_RAND_load_files(inrand);
470 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
471 newkey = DEFAULT_KEY_LENGTH;
474 if (keyalg != NULL) {
475 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
476 &keyalgstr, gen_eng);
481 if (newkey < MIN_KEY_LENGTH
482 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
483 BIO_printf(bio_err, "private key length is too short,\n");
484 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
485 MIN_KEY_LENGTH, newkey);
489 if (genctx == NULL) {
490 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
491 &keyalgstr, gen_eng);
496 if (pkeyopts != NULL) {
498 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
499 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
500 if (pkey_ctrl_string(genctx, genopt) <= 0) {
501 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
502 ERR_print_errors(bio_err);
508 if (pkey_type == EVP_PKEY_EC) {
509 BIO_printf(bio_err, "Generating an EC private key\n");
511 BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
515 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
516 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
518 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
519 BIO_puts(bio_err, "Error Generating Key\n");
523 EVP_PKEY_CTX_free(genctx);
526 app_RAND_write_file(randfile);
528 if (keyout == NULL) {
529 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
535 BIO_printf(bio_err, "writing new private key to stdout\n");
537 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
538 out = bio_open_owner(keyout, outformat, private);
542 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
545 p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
549 if ((p != NULL) && (strcmp(p, "no") == 0))
557 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
558 NULL, 0, NULL, passout)) {
559 if ((ERR_GET_REASON(ERR_peek_error()) ==
560 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
569 BIO_printf(bio_err, "-----\n");
573 in = bio_open_default(infile, 'r', informat);
577 if (informat == FORMAT_ASN1)
578 req = d2i_X509_REQ_bio(in, NULL);
580 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
582 BIO_printf(bio_err, "unable to load X509 request\n");
587 if (newreq || x509) {
589 BIO_printf(bio_err, "you need to specify a private key\n");
594 req = X509_REQ_new();
599 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
600 subj = NULL; /* done processing '-subj' option */
602 BIO_printf(bio_err, "problems making Certificate Request\n");
609 if ((x509ss = X509_new()) == NULL)
612 /* Set version to V3 */
613 if (extensions != NULL && !X509_set_version(x509ss, 2))
615 if (serial != NULL) {
616 if (!X509_set_serialNumber(x509ss, serial))
619 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
623 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
625 if (!set_cert_times(x509ss, NULL, NULL, days))
627 if (!X509_set_subject_name
628 (x509ss, X509_REQ_get_subject_name(req)))
630 tmppkey = X509_REQ_get0_pubkey(req);
631 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
634 /* Set up V3 context struct */
636 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
637 X509V3_set_nconf(&ext_ctx, req_conf);
640 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf,
641 &ext_ctx, extensions,
643 BIO_printf(bio_err, "Error Loading extension section %s\n",
648 /* If a pre-cert was requested, we need to add a poison extension */
650 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0)
652 BIO_printf(bio_err, "Error adding poison extension\n");
657 i = do_X509_sign(x509ss, pkey, digest, sigopts);
659 ERR_print_errors(bio_err);
665 /* Set up V3 context struct */
667 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
668 X509V3_set_nconf(&ext_ctx, req_conf);
672 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
674 BIO_printf(bio_err, "Error Loading extension section %s\n",
678 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
680 ERR_print_errors(bio_err);
687 BIO_printf(bio_err, "Cannot modify certificate subject\n");
693 BIO_printf(bio_err, "Modifying Request's Subject\n");
694 print_name(bio_err, "old subject=",
695 X509_REQ_get_subject_name(req), get_nameopt());
698 if (build_subject(req, subj, chtype, multirdn) == 0) {
699 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
705 print_name(bio_err, "new subject=",
706 X509_REQ_get_subject_name(req), get_nameopt());
710 if (verify && !x509) {
711 EVP_PKEY *tpubkey = pkey;
713 if (tpubkey == NULL) {
714 tpubkey = X509_REQ_get0_pubkey(req);
719 i = X509_REQ_verify(req, tpubkey);
724 BIO_printf(bio_err, "verify failure\n");
725 ERR_print_errors(bio_err);
726 } else { /* if (i > 0) */
727 BIO_printf(bio_err, "verify OK\n");
731 if (noout && !text && !modulus && !subject && !pubkey) {
736 out = bio_open_default(outfile,
737 keyout != NULL && outfile != NULL &&
738 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
744 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
746 if (tpubkey == NULL) {
747 BIO_printf(bio_err, "Error getting public key\n");
748 ERR_print_errors(bio_err);
751 PEM_write_bio_PUBKEY(out, tpubkey);
756 X509_print_ex(out, x509ss, get_nameopt(), reqflag);
758 X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
763 print_name(out, "subject=", X509_get_subject_name(x509ss),
766 print_name(out, "subject=", X509_REQ_get_subject_name(req),
774 tpubkey = X509_get0_pubkey(x509ss);
776 tpubkey = X509_REQ_get0_pubkey(req);
777 if (tpubkey == NULL) {
778 fprintf(stdout, "Modulus=unavailable\n");
781 fprintf(stdout, "Modulus=");
782 #ifndef OPENSSL_NO_RSA
783 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
785 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
789 fprintf(stdout, "Wrong Algorithm type");
790 fprintf(stdout, "\n");
793 if (!noout && !x509) {
794 if (outformat == FORMAT_ASN1)
795 i = i2d_X509_REQ_bio(out, req);
797 i = PEM_write_bio_X509_REQ_NEW(out, req);
799 i = PEM_write_bio_X509_REQ(out, req);
801 BIO_printf(bio_err, "unable to write X509 request\n");
805 if (!noout && x509 && (x509ss != NULL)) {
806 if (outformat == FORMAT_ASN1)
807 i = i2d_X509_bio(out, x509ss);
809 i = PEM_write_bio_X509(out, x509ss);
811 BIO_printf(bio_err, "unable to write X509 certificate\n");
818 ERR_print_errors(bio_err);
820 NCONF_free(req_conf);
824 EVP_PKEY_CTX_free(genctx);
825 sk_OPENSSL_STRING_free(pkeyopts);
826 sk_OPENSSL_STRING_free(sigopts);
827 #ifndef OPENSSL_NO_ENGINE
828 ENGINE_free(gen_eng);
830 OPENSSL_free(keyalgstr);
833 ASN1_INTEGER_free(serial);
835 if (passin != nofree_passin)
836 OPENSSL_free(passin);
837 if (passout != nofree_passout)
838 OPENSSL_free(passout);
842 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
843 int attribs, unsigned long chtype)
847 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
848 char *tmp, *dn_sect, *attr_sect;
850 tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
853 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
856 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
857 if (dn_sect == NULL) {
858 BIO_printf(bio_err, "unable to find '%s' in config\n",
862 dn_sk = NCONF_get_section(req_conf, dn_sect);
864 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
868 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
869 if (attr_sect == NULL) {
873 attr_sk = NCONF_get_section(req_conf, attr_sect);
874 if (attr_sk == NULL) {
875 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
880 /* setup version number */
881 if (!X509_REQ_set_version(req, 0L))
882 goto err; /* version 1 */
885 i = build_subject(req, subj, chtype, multirdn);
887 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
889 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
894 if (!X509_REQ_set_pubkey(req, pkey))
903 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
904 * where characters may be escaped by \
906 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
911 if ((n = parse_name(subject, chtype, multirdn)) == NULL)
914 if (!X509_REQ_set_subject_name(req, n)) {
922 static int prompt_info(X509_REQ *req,
923 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
924 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
925 int attribs, unsigned long chtype)
936 subj = X509_REQ_get_subject_name(req);
940 "You are about to be asked to enter information that will be incorporated\n");
941 BIO_printf(bio_err, "into your certificate request.\n");
943 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
945 "There are quite a few fields but you can leave some blank\n");
947 "For some fields there will be a default value,\n");
949 "If you enter '.', the field will be left blank.\n");
950 BIO_printf(bio_err, "-----\n");
953 if (sk_CONF_VALUE_num(dn_sk)) {
958 if (sk_CONF_VALUE_num(dn_sk) <= i)
961 v = sk_CONF_VALUE_value(dn_sk, i);
964 if (!check_end(type, "_min") || !check_end(type, "_max") ||
965 !check_end(type, "_default") || !check_end(type, "_value"))
968 * Skip past any leading X. X: X, etc to allow for multiple
971 for (p = v->name; *p; p++)
972 if ((*p == ':') || (*p == ',') || (*p == '.')) {
984 /* If OBJ not recognised ignore it */
985 if ((nid = OBJ_txt2nid(type)) == NID_undef)
987 if (BIO_snprintf(buf, sizeof buf, "%s_default", v->name)
988 >= (int)sizeof(buf)) {
989 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
993 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
998 BIO_snprintf(buf, sizeof buf, "%s_value", v->name);
999 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1004 BIO_snprintf(buf, sizeof buf, "%s_min", v->name);
1005 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1010 BIO_snprintf(buf, sizeof buf, "%s_max", v->name);
1011 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1016 if (!add_DN_object(subj, v->value, def, value, nid,
1017 n_min, n_max, chtype, mval))
1020 if (X509_NAME_entry_count(subj) == 0) {
1022 "error, no objects specified in config file\n");
1027 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1030 "\nPlease enter the following 'extra' attributes\n");
1032 "to be sent with your certificate request\n");
1039 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1042 v = sk_CONF_VALUE_value(attr_sk, i);
1044 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1047 if (BIO_snprintf(buf, sizeof buf, "%s_default", type)
1048 >= (int)sizeof(buf)) {
1049 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
1053 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1059 BIO_snprintf(buf, sizeof buf, "%s_value", type);
1060 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1066 BIO_snprintf(buf, sizeof buf, "%s_min", type);
1067 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1072 BIO_snprintf(buf, sizeof buf, "%s_max", type);
1073 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1078 if (!add_attribute_object(req,
1079 v->value, def, value, nid, n_min,
1085 BIO_printf(bio_err, "No template, please set one up.\n");
1093 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1094 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1095 unsigned long chtype)
1097 int i, spec_char, plus_char;
1103 subj = X509_REQ_get_subject_name(req);
1105 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1107 v = sk_CONF_VALUE_value(dn_sk, i);
1111 * Skip past any leading X. X: X, etc to allow for multiple instances
1113 for (p = v->name; *p; p++) {
1114 #ifndef CHARSET_EBCDIC
1115 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1117 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1118 || (*p == os_toascii['.']));
1127 #ifndef CHARSET_EBCDIC
1128 plus_char = (*type == '+');
1130 plus_char = (*type == os_toascii['+']);
1138 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1139 (unsigned char *)v->value, -1, -1,
1145 if (!X509_NAME_entry_count(subj)) {
1146 BIO_printf(bio_err, "error, no objects specified in config file\n");
1150 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1151 v = sk_CONF_VALUE_value(attr_sk, i);
1152 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1153 (unsigned char *)v->value, -1))
1160 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1161 char *value, int nid, int n_min, int n_max,
1162 unsigned long chtype, int mval)
1168 BIO_printf(bio_err, "%s [%s]:", text, def);
1169 (void)BIO_flush(bio_err);
1170 if (value != NULL) {
1171 OPENSSL_strlcpy(buf, value, sizeof buf);
1172 OPENSSL_strlcat(buf, "\n", sizeof buf);
1173 BIO_printf(bio_err, "%s\n", value);
1177 if (!fgets(buf, sizeof buf, stdin))
1187 if (buf[0] == '\n') {
1188 if ((def == NULL) || (def[0] == '\0'))
1190 OPENSSL_strlcpy(buf, def, sizeof buf);
1191 OPENSSL_strlcat(buf, "\n", sizeof buf);
1192 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1197 if (buf[i - 1] != '\n') {
1198 BIO_printf(bio_err, "weird input :-(\n");
1202 #ifdef CHARSET_EBCDIC
1203 ebcdic2ascii(buf, buf, i);
1205 if (!req_check_len(i, n_min, n_max)) {
1211 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1212 (unsigned char *)buf, -1, -1, mval))
1219 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1220 char *value, int nid, int n_min,
1221 int n_max, unsigned long chtype)
1224 static char buf[1024];
1228 BIO_printf(bio_err, "%s [%s]:", text, def);
1229 (void)BIO_flush(bio_err);
1230 if (value != NULL) {
1231 OPENSSL_strlcpy(buf, value, sizeof buf);
1232 OPENSSL_strlcat(buf, "\n", sizeof buf);
1233 BIO_printf(bio_err, "%s\n", value);
1237 if (!fgets(buf, sizeof buf, stdin))
1247 if (buf[0] == '\n') {
1248 if ((def == NULL) || (def[0] == '\0'))
1250 OPENSSL_strlcpy(buf, def, sizeof buf);
1251 OPENSSL_strlcat(buf, "\n", sizeof buf);
1252 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1257 if (buf[i - 1] != '\n') {
1258 BIO_printf(bio_err, "weird input :-(\n");
1262 #ifdef CHARSET_EBCDIC
1263 ebcdic2ascii(buf, buf, i);
1265 if (!req_check_len(i, n_min, n_max)) {
1271 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1272 (unsigned char *)buf, -1)) {
1273 BIO_printf(bio_err, "Error adding attribute\n");
1274 ERR_print_errors(bio_err);
1283 static int req_check_len(int len, int n_min, int n_max)
1285 if ((n_min > 0) && (len < n_min)) {
1287 "string is too short, it needs to be at least %d bytes long\n",
1291 if ((n_max >= 0) && (len > n_max)) {
1293 "string is too long, it needs to be no more than %d bytes long\n",
1300 /* Check if the end of a string matches 'end' */
1301 static int check_end(const char *str, const char *end)
1309 tmp = str + slen - elen;
1310 return strcmp(tmp, end);
1313 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1314 int *pkey_type, long *pkeylen,
1315 char **palgnam, ENGINE *keygen_engine)
1317 EVP_PKEY_CTX *gctx = NULL;
1318 EVP_PKEY *param = NULL;
1321 const char *paramfile = NULL;
1324 *pkey_type = EVP_PKEY_RSA;
1326 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1327 *pkey_type = EVP_PKEY_RSA;
1328 keylen = atol(gstr);
1330 } else if (strncmp(gstr, "param:", 6) == 0) {
1331 paramfile = gstr + 6;
1333 const char *p = strchr(gstr, ':');
1336 const EVP_PKEY_ASN1_METHOD *ameth;
1343 * The lookup of a the string will cover all engines so keep a note
1344 * of the implementation.
1347 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1349 if (ameth == NULL) {
1350 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1354 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1355 #ifndef OPENSSL_NO_ENGINE
1356 ENGINE_finish(tmpeng);
1358 if (*pkey_type == EVP_PKEY_RSA) {
1360 keylen = atol(p + 1);
1365 } else if (p != NULL) {
1370 if (paramfile != NULL) {
1371 pbio = BIO_new_file(paramfile, "r");
1373 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1376 param = PEM_read_bio_Parameters(pbio, NULL);
1378 if (param == NULL) {
1381 (void)BIO_reset(pbio);
1382 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1384 param = X509_get_pubkey(x);
1391 if (param == NULL) {
1392 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1395 if (*pkey_type == -1) {
1396 *pkey_type = EVP_PKEY_id(param);
1397 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1398 BIO_printf(bio_err, "Key Type does not match parameters\n");
1399 EVP_PKEY_free(param);
1404 if (palgnam != NULL) {
1405 const EVP_PKEY_ASN1_METHOD *ameth;
1409 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1410 if (ameth == NULL) {
1411 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1414 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1415 *palgnam = OPENSSL_strdup(anam);
1416 #ifndef OPENSSL_NO_ENGINE
1417 ENGINE_finish(tmpeng);
1421 if (param != NULL) {
1422 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1423 *pkeylen = EVP_PKEY_bits(param);
1424 EVP_PKEY_free(param);
1426 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1430 BIO_puts(bio_err, "Error allocating keygen context\n");
1431 ERR_print_errors(bio_err);
1435 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1436 BIO_puts(bio_err, "Error initializing keygen context\n");
1437 ERR_print_errors(bio_err);
1438 EVP_PKEY_CTX_free(gctx);
1441 #ifndef OPENSSL_NO_RSA
1442 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1443 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1444 BIO_puts(bio_err, "Error setting RSA keysize\n");
1445 ERR_print_errors(bio_err);
1446 EVP_PKEY_CTX_free(gctx);
1455 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1458 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1460 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1469 BIO_write(b, &c, 1);
1474 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1475 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1477 EVP_PKEY_CTX *pkctx = NULL;
1482 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1484 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1485 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1486 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1487 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1488 ERR_print_errors(bio_err);
1495 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1496 STACK_OF(OPENSSL_STRING) *sigopts)
1499 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1501 rv = do_sign_init(mctx, pkey, md, sigopts);
1503 rv = X509_sign_ctx(x, mctx);
1504 EVP_MD_CTX_free(mctx);
1505 return rv > 0 ? 1 : 0;
1508 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1509 STACK_OF(OPENSSL_STRING) *sigopts)
1512 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1513 rv = do_sign_init(mctx, pkey, md, sigopts);
1515 rv = X509_REQ_sign_ctx(x, mctx);
1516 EVP_MD_CTX_free(mctx);
1517 return rv > 0 ? 1 : 0;
1520 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1521 STACK_OF(OPENSSL_STRING) *sigopts)
1524 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1525 rv = do_sign_init(mctx, pkey, md, sigopts);
1527 rv = X509_CRL_sign_ctx(x, mctx);
1528 EVP_MD_CTX_free(mctx);
1529 return rv > 0 ? 1 : 0;