2 * Copyright 1995-2016 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))
384 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
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 && !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;
432 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
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;
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);
490 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
491 &keyalgstr, gen_eng);
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 && !X509_set_version(x509ss, 2))
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 && !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);
671 if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
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");
730 if (noout && !text && !modulus && !subject && !pubkey) {
735 out = bio_open_default(outfile,
736 keyout != NULL && outfile != NULL &&
737 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
743 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
745 if (tpubkey == NULL) {
746 BIO_printf(bio_err, "Error getting public key\n");
747 ERR_print_errors(bio_err);
750 PEM_write_bio_PUBKEY(out, tpubkey);
755 X509_print_ex(out, x509ss, get_nameopt(), reqflag);
757 X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
762 print_name(out, "subject=", X509_get_subject_name(x509ss),
765 print_name(out, "subject=", X509_REQ_get_subject_name(req),
773 tpubkey = X509_get0_pubkey(x509ss);
775 tpubkey = X509_REQ_get0_pubkey(req);
776 if (tpubkey == NULL) {
777 fprintf(stdout, "Modulus=unavailable\n");
780 fprintf(stdout, "Modulus=");
781 #ifndef OPENSSL_NO_RSA
782 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
784 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
788 fprintf(stdout, "Wrong Algorithm type");
789 fprintf(stdout, "\n");
792 if (!noout && !x509) {
793 if (outformat == FORMAT_ASN1)
794 i = i2d_X509_REQ_bio(out, req);
796 i = PEM_write_bio_X509_REQ_NEW(out, req);
798 i = PEM_write_bio_X509_REQ(out, req);
800 BIO_printf(bio_err, "unable to write X509 request\n");
804 if (!noout && x509 && (x509ss != NULL)) {
805 if (outformat == FORMAT_ASN1)
806 i = i2d_X509_bio(out, x509ss);
808 i = PEM_write_bio_X509(out, x509ss);
810 BIO_printf(bio_err, "unable to write X509 certificate\n");
817 ERR_print_errors(bio_err);
819 NCONF_free(req_conf);
823 EVP_PKEY_CTX_free(genctx);
824 sk_OPENSSL_STRING_free(pkeyopts);
825 sk_OPENSSL_STRING_free(sigopts);
826 #ifndef OPENSSL_NO_ENGINE
827 ENGINE_free(gen_eng);
829 OPENSSL_free(keyalgstr);
832 ASN1_INTEGER_free(serial);
834 if (passin != nofree_passin)
835 OPENSSL_free(passin);
836 if (passout != nofree_passout)
837 OPENSSL_free(passout);
841 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
842 int attribs, unsigned long chtype)
846 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
847 char *tmp, *dn_sect, *attr_sect;
849 tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
852 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
855 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
856 if (dn_sect == NULL) {
857 BIO_printf(bio_err, "unable to find '%s' in config\n",
861 dn_sk = NCONF_get_section(req_conf, dn_sect);
863 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
867 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
868 if (attr_sect == NULL) {
872 attr_sk = NCONF_get_section(req_conf, attr_sect);
873 if (attr_sk == NULL) {
874 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
879 /* setup version number */
880 if (!X509_REQ_set_version(req, 0L))
881 goto err; /* version 1 */
884 i = build_subject(req, subj, chtype, multirdn);
886 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
888 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
893 if (!X509_REQ_set_pubkey(req, pkey))
902 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
903 * where characters may be escaped by \
905 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
910 if ((n = parse_name(subject, chtype, multirdn)) == NULL)
913 if (!X509_REQ_set_subject_name(req, n)) {
921 static int prompt_info(X509_REQ *req,
922 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
923 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
924 int attribs, unsigned long chtype)
935 subj = X509_REQ_get_subject_name(req);
939 "You are about to be asked to enter information that will be incorporated\n");
940 BIO_printf(bio_err, "into your certificate request.\n");
942 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
944 "There are quite a few fields but you can leave some blank\n");
946 "For some fields there will be a default value,\n");
948 "If you enter '.', the field will be left blank.\n");
949 BIO_printf(bio_err, "-----\n");
952 if (sk_CONF_VALUE_num(dn_sk)) {
956 if (sk_CONF_VALUE_num(dn_sk) <= i)
959 v = sk_CONF_VALUE_value(dn_sk, i);
962 if (!check_end(type, "_min") || !check_end(type, "_max") ||
963 !check_end(type, "_default") || !check_end(type, "_value"))
966 * Skip past any leading X. X: X, etc to allow for multiple
969 for (p = v->name; *p; p++)
970 if ((*p == ':') || (*p == ',') || (*p == '.')) {
981 /* If OBJ not recognised ignore it */
982 if ((nid = OBJ_txt2nid(type)) == NID_undef)
984 if (BIO_snprintf(buf, sizeof buf, "%s_default", v->name)
985 >= (int)sizeof(buf)) {
986 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
990 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
995 BIO_snprintf(buf, sizeof buf, "%s_value", v->name);
996 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1001 BIO_snprintf(buf, sizeof buf, "%s_min", v->name);
1002 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1007 BIO_snprintf(buf, sizeof buf, "%s_max", v->name);
1008 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1013 if (!add_DN_object(subj, v->value, def, value, nid,
1014 n_min, n_max, chtype, mval))
1017 if (X509_NAME_entry_count(subj) == 0) {
1019 "error, no objects specified in config file\n");
1024 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1027 "\nPlease enter the following 'extra' attributes\n");
1029 "to be sent with your certificate request\n");
1035 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1038 v = sk_CONF_VALUE_value(attr_sk, i);
1040 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1043 if (BIO_snprintf(buf, sizeof buf, "%s_default", type)
1044 >= (int)sizeof(buf)) {
1045 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
1049 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1055 BIO_snprintf(buf, sizeof buf, "%s_value", type);
1056 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1062 BIO_snprintf(buf, sizeof buf, "%s_min", type);
1063 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1068 BIO_snprintf(buf, sizeof buf, "%s_max", type);
1069 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1074 if (!add_attribute_object(req,
1075 v->value, def, value, nid, n_min,
1081 BIO_printf(bio_err, "No template, please set one up.\n");
1089 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1090 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1091 unsigned long chtype)
1093 int i, spec_char, plus_char;
1099 subj = X509_REQ_get_subject_name(req);
1101 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1103 v = sk_CONF_VALUE_value(dn_sk, i);
1107 * Skip past any leading X. X: X, etc to allow for multiple instances
1109 for (p = v->name; *p; p++) {
1110 #ifndef CHARSET_EBCDIC
1111 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1113 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1114 || (*p == os_toascii['.']));
1123 #ifndef CHARSET_EBCDIC
1124 plus_char = (*type == '+');
1126 plus_char = (*type == os_toascii['+']);
1133 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1134 (unsigned char *)v->value, -1, -1,
1140 if (!X509_NAME_entry_count(subj)) {
1141 BIO_printf(bio_err, "error, no objects specified in config file\n");
1145 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1146 v = sk_CONF_VALUE_value(attr_sk, i);
1147 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1148 (unsigned char *)v->value, -1))
1155 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1156 char *value, int nid, int n_min, int n_max,
1157 unsigned long chtype, int mval)
1163 BIO_printf(bio_err, "%s [%s]:", text, def);
1164 (void)BIO_flush(bio_err);
1165 if (value != NULL) {
1166 OPENSSL_strlcpy(buf, value, sizeof buf);
1167 OPENSSL_strlcat(buf, "\n", sizeof buf);
1168 BIO_printf(bio_err, "%s\n", value);
1172 if (!fgets(buf, sizeof buf, stdin))
1182 else if (buf[0] == '\n') {
1183 if ((def == NULL) || (def[0] == '\0'))
1185 OPENSSL_strlcpy(buf, def, sizeof buf);
1186 OPENSSL_strlcat(buf, "\n", sizeof buf);
1187 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1191 if (buf[i - 1] != '\n') {
1192 BIO_printf(bio_err, "weird input :-(\n");
1196 #ifdef CHARSET_EBCDIC
1197 ebcdic2ascii(buf, buf, i);
1199 if (!req_check_len(i, n_min, n_max)) {
1205 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1206 (unsigned char *)buf, -1, -1, mval))
1213 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1214 char *value, int nid, int n_min,
1215 int n_max, unsigned long chtype)
1218 static char buf[1024];
1222 BIO_printf(bio_err, "%s [%s]:", text, def);
1223 (void)BIO_flush(bio_err);
1224 if (value != NULL) {
1225 OPENSSL_strlcpy(buf, value, sizeof buf);
1226 OPENSSL_strlcat(buf, "\n", sizeof buf);
1227 BIO_printf(bio_err, "%s\n", value);
1231 if (!fgets(buf, sizeof buf, stdin))
1241 else if (buf[0] == '\n') {
1242 if ((def == NULL) || (def[0] == '\0'))
1244 OPENSSL_strlcpy(buf, def, sizeof buf);
1245 OPENSSL_strlcat(buf, "\n", sizeof buf);
1246 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1250 if (buf[i - 1] != '\n') {
1251 BIO_printf(bio_err, "weird input :-(\n");
1255 #ifdef CHARSET_EBCDIC
1256 ebcdic2ascii(buf, buf, i);
1258 if (!req_check_len(i, n_min, n_max)) {
1264 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1265 (unsigned char *)buf, -1)) {
1266 BIO_printf(bio_err, "Error adding attribute\n");
1267 ERR_print_errors(bio_err);
1276 static int req_check_len(int len, int n_min, int n_max)
1278 if ((n_min > 0) && (len < n_min)) {
1280 "string is too short, it needs to be at least %d bytes long\n",
1284 if ((n_max >= 0) && (len > n_max)) {
1286 "string is too long, it needs to be no more than %d bytes long\n",
1293 /* Check if the end of a string matches 'end' */
1294 static int check_end(const char *str, const char *end)
1302 tmp = str + slen - elen;
1303 return strcmp(tmp, end);
1306 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1307 int *pkey_type, long *pkeylen,
1308 char **palgnam, ENGINE *keygen_engine)
1310 EVP_PKEY_CTX *gctx = NULL;
1311 EVP_PKEY *param = NULL;
1314 const char *paramfile = NULL;
1317 *pkey_type = EVP_PKEY_RSA;
1319 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1320 *pkey_type = EVP_PKEY_RSA;
1321 keylen = atol(gstr);
1323 } else if (strncmp(gstr, "param:", 6) == 0)
1324 paramfile = gstr + 6;
1326 const char *p = strchr(gstr, ':');
1329 const EVP_PKEY_ASN1_METHOD *ameth;
1336 * The lookup of a the string will cover all engines so keep a note
1337 * of the implementation.
1340 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1343 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1347 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1348 #ifndef OPENSSL_NO_ENGINE
1349 ENGINE_finish(tmpeng);
1351 if (*pkey_type == EVP_PKEY_RSA) {
1353 keylen = atol(p + 1);
1362 pbio = BIO_new_file(paramfile, "r");
1364 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1367 param = PEM_read_bio_Parameters(pbio, NULL);
1371 (void)BIO_reset(pbio);
1372 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1374 param = X509_get_pubkey(x);
1382 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1385 if (*pkey_type == -1)
1386 *pkey_type = EVP_PKEY_id(param);
1387 else if (*pkey_type != EVP_PKEY_base_id(param)) {
1388 BIO_printf(bio_err, "Key Type does not match parameters\n");
1389 EVP_PKEY_free(param);
1395 const EVP_PKEY_ASN1_METHOD *ameth;
1398 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1400 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1403 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1404 *palgnam = OPENSSL_strdup(anam);
1405 #ifndef OPENSSL_NO_ENGINE
1406 ENGINE_finish(tmpeng);
1411 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1412 *pkeylen = EVP_PKEY_bits(param);
1413 EVP_PKEY_free(param);
1415 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1418 BIO_puts(bio_err, "Error allocating keygen context\n");
1419 ERR_print_errors(bio_err);
1423 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1424 BIO_puts(bio_err, "Error initializing keygen context\n");
1425 ERR_print_errors(bio_err);
1426 EVP_PKEY_CTX_free(gctx);
1429 #ifndef OPENSSL_NO_RSA
1430 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1431 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1432 BIO_puts(bio_err, "Error setting RSA keysize\n");
1433 ERR_print_errors(bio_err);
1434 EVP_PKEY_CTX_free(gctx);
1443 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1446 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1448 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1457 BIO_write(b, &c, 1);
1462 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1463 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1465 EVP_PKEY_CTX *pkctx = NULL;
1470 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1472 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1473 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1474 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1475 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1476 ERR_print_errors(bio_err);
1483 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1484 STACK_OF(OPENSSL_STRING) *sigopts)
1487 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1489 rv = do_sign_init(mctx, pkey, md, sigopts);
1491 rv = X509_sign_ctx(x, mctx);
1492 EVP_MD_CTX_free(mctx);
1493 return rv > 0 ? 1 : 0;
1496 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1497 STACK_OF(OPENSSL_STRING) *sigopts)
1500 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1501 rv = do_sign_init(mctx, pkey, md, sigopts);
1503 rv = X509_REQ_sign_ctx(x, mctx);
1504 EVP_MD_CTX_free(mctx);
1505 return rv > 0 ? 1 : 0;
1508 int do_X509_CRL_sign(X509_CRL *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_CRL_sign_ctx(x, mctx);
1516 EVP_MD_CTX_free(mctx);
1517 return rv > 0 ? 1 : 0;