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 int join(char buf[], size_t buf_size, const char *name,
68 const char *tail, const char *desc);
69 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
70 int *pkey_type, long *pkeylen,
71 char **palgnam, ENGINE *keygen_engine);
72 static CONF *req_conf = NULL;
75 typedef enum OPTION_choice {
76 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
77 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
78 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
79 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
80 OPT_PKEYOPT, OPT_SIGOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
81 OPT_VERIFY, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
82 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
83 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_EXTENSIONS,
84 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
88 const OPTIONS req_options[] = {
89 {"help", OPT_HELP, '-', "Display this summary"},
90 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
91 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
92 {"in", OPT_IN, '<', "Input file"},
93 {"out", OPT_OUT, '>', "Output file"},
94 {"key", OPT_KEY, 's', "Private key to use"},
95 {"keyform", OPT_KEYFORM, 'f', "Key file format"},
96 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
97 {"new", OPT_NEW, '-', "New request"},
98 {"config", OPT_CONFIG, '<', "Request template file"},
99 {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
100 {"passin", OPT_PASSIN, 's', "Private key password source"},
101 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
103 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
104 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
105 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
106 {"batch", OPT_BATCH, '-',
107 "Do not ask anything during request generation"},
108 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
109 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
110 {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
111 {"nodes", OPT_NODES, '-', "Don't encrypt the output key"},
112 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
113 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
114 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
115 {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
116 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
117 {"text", OPT_TEXT, '-', "Text form of request"},
118 {"x509", OPT_X509, '-',
119 "Output a x509 structure instead of a cert request"},
120 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
121 {"subj", OPT_SUBJ, 's', "Set or modify request subject"},
122 {"subject", OPT_SUBJECT, '-', "Output the request's subject"},
123 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
124 "Enable support for multivalued RDNs"},
125 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
126 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
127 {"extensions", OPT_EXTENSIONS, 's',
128 "Cert extension section (override value in config file)"},
129 {"reqexts", OPT_REQEXTS, 's',
130 "Request extension section (override value in config file)"},
131 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
132 {"", OPT_MD, '-', "Any supported digest"},
133 #ifndef OPENSSL_NO_ENGINE
134 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
135 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
136 "Specify engine to be used for key generation operations"},
141 int req_main(int argc, char **argv)
143 ASN1_INTEGER *serial = NULL;
144 BIO *in = NULL, *out = NULL;
145 ENGINE *e = NULL, *gen_eng = NULL;
146 EVP_PKEY *pkey = NULL;
147 EVP_PKEY_CTX *genctx = NULL;
148 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
150 X509_REQ *req = NULL;
151 const EVP_CIPHER *cipher = NULL;
152 const EVP_MD *md_alg = NULL, *digest = NULL;
153 char *extensions = NULL, *infile = NULL;
154 char *outfile = NULL, *keyfile = NULL;
155 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
156 char *passin = NULL, *passout = NULL;
157 char *nofree_passin = NULL, *nofree_passout = NULL;
158 char *req_exts = NULL, *subj = NULL;
159 char *template = default_config_file, *keyout = NULL;
160 const char *keyalg = NULL;
162 int ret = 1, x509 = 0, days = 0, i = 0, newreq = 0, verbose = 0;
163 int pkey_type = -1, private = 0;
164 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
165 int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
166 int nodes = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
168 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
170 #ifndef OPENSSL_NO_DES
171 cipher = EVP_des_ede3_cbc();
174 prog = opt_init(argc, argv, req_options);
175 while ((o = opt_next()) != OPT_EOF) {
180 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
183 opt_help(req_options);
187 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
191 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
195 e = setup_engine(opt_arg(), 0);
197 case OPT_KEYGEN_ENGINE:
198 #ifndef OPENSSL_NO_ENGINE
199 gen_eng = ENGINE_by_id(opt_arg());
200 if (gen_eng == NULL) {
201 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
216 template = opt_arg();
219 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
232 passargin = opt_arg();
235 passargout = opt_arg();
247 pkeyopts = sk_OPENSSL_STRING_new_null();
248 if (!pkeyopts || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
253 sigopts = sk_OPENSSL_STRING_new_null();
254 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
279 chtype = MBSTRING_UTF8;
282 if (!set_nameopt(opt_arg()))
286 if (!set_cert_ex(&reqflag, opt_arg()))
296 days = atoi(opt_arg());
299 if (serial != NULL) {
300 BIO_printf(bio_err, "Serial number supplied twice\n");
303 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
313 case OPT_MULTIVALUE_RDN:
317 extensions = opt_arg();
320 req_exts = opt_arg();
323 newreq = precert = 1;
326 if (!opt_md(opt_unknown(), &md_alg))
332 argc = opt_num_rest();
337 BIO_printf(bio_err, "Ignoring -days; not generating a certificate\n");
338 if (x509 && infile == NULL)
341 /* TODO: simplify this as pkey is still always NULL here */
342 private = newreq && (pkey == NULL) ? 1 : 0;
344 if (!app_passwd(passargin, passargout, &passin, &passout)) {
345 BIO_printf(bio_err, "Error getting passwords\n");
350 BIO_printf(bio_err, "Using configuration from %s\n", template);
351 req_conf = app_load_config(template);
352 if (template != default_config_file && !app_load_modules(req_conf))
355 if (req_conf != NULL) {
356 p = NCONF_get_string(req_conf, NULL, "oid_file");
362 oid_bio = BIO_new_file(p, "r");
363 if (oid_bio == NULL) {
365 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
366 ERR_print_errors(bio_err);
369 OBJ_create_objects(oid_bio);
374 if (!add_oid_section(req_conf))
377 if (md_alg == NULL) {
378 p = NCONF_get_string(req_conf, SECTION, "default_md");
382 if (!opt_md(p, &md_alg))
388 if (extensions == NULL) {
389 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
390 if (extensions == NULL)
393 if (extensions != NULL) {
394 /* Check syntax of file */
396 X509V3_set_ctx_test(&ctx);
397 X509V3_set_nconf(&ctx, req_conf);
398 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
400 "Error Loading extension section %s\n", extensions);
405 if (passin == NULL) {
406 passin = nofree_passin =
407 NCONF_get_string(req_conf, SECTION, "input_password");
412 if (passout == NULL) {
413 passout = nofree_passout =
414 NCONF_get_string(req_conf, SECTION, "output_password");
419 p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
423 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
424 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
428 if (chtype != MBSTRING_UTF8) {
429 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
432 else if (strcmp(p, "yes") == 0)
433 chtype = MBSTRING_UTF8;
436 if (req_exts == NULL) {
437 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
438 if (req_exts == NULL)
441 if (req_exts != NULL) {
442 /* Check syntax of file */
444 X509V3_set_ctx_test(&ctx);
445 X509V3_set_nconf(&ctx, req_conf);
446 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
448 "Error Loading request extension section %s\n",
454 if (keyfile != NULL) {
455 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
457 /* load_key() has already printed an appropriate message */
460 app_RAND_load_conf(req_conf, SECTION);
464 if (newreq && (pkey == NULL)) {
465 app_RAND_load_conf(req_conf, SECTION);
467 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
468 newkey = DEFAULT_KEY_LENGTH;
471 if (keyalg != NULL) {
472 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
473 &keyalgstr, gen_eng);
478 if (newkey < MIN_KEY_LENGTH
479 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
480 BIO_printf(bio_err, "private key length is too short,\n");
481 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
482 MIN_KEY_LENGTH, newkey);
486 if (genctx == NULL) {
487 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
488 &keyalgstr, gen_eng);
493 if (pkeyopts != NULL) {
495 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
496 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
497 if (pkey_ctrl_string(genctx, genopt) <= 0) {
498 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
499 ERR_print_errors(bio_err);
505 if (pkey_type == EVP_PKEY_EC) {
506 BIO_printf(bio_err, "Generating an EC private key\n");
508 BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
512 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
513 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
515 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
516 BIO_puts(bio_err, "Error Generating Key\n");
520 EVP_PKEY_CTX_free(genctx);
523 if (keyout == NULL) {
524 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
530 BIO_printf(bio_err, "writing new private key to stdout\n");
532 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
533 out = bio_open_owner(keyout, outformat, private);
537 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
540 p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
544 if ((p != NULL) && (strcmp(p, "no") == 0))
552 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
553 NULL, 0, NULL, passout)) {
554 if ((ERR_GET_REASON(ERR_peek_error()) ==
555 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
564 BIO_printf(bio_err, "-----\n");
568 in = bio_open_default(infile, 'r', informat);
572 if (informat == FORMAT_ASN1)
573 req = d2i_X509_REQ_bio(in, NULL);
575 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
577 BIO_printf(bio_err, "unable to load X509 request\n");
582 if (newreq || x509) {
584 BIO_printf(bio_err, "you need to specify a private key\n");
589 req = X509_REQ_new();
594 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
595 subj = NULL; /* done processing '-subj' option */
597 BIO_printf(bio_err, "problems making Certificate Request\n");
604 if ((x509ss = X509_new()) == NULL)
607 /* Set version to V3 */
608 if (extensions != NULL && !X509_set_version(x509ss, 2))
610 if (serial != NULL) {
611 if (!X509_set_serialNumber(x509ss, serial))
614 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
618 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
621 /* set default days if it's not specified */
624 if (!set_cert_times(x509ss, NULL, NULL, days))
626 if (!X509_set_subject_name
627 (x509ss, X509_REQ_get_subject_name(req)))
629 tmppkey = X509_REQ_get0_pubkey(req);
630 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
633 /* Set up V3 context struct */
635 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
636 X509V3_set_nconf(&ext_ctx, req_conf);
639 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf,
640 &ext_ctx, extensions,
642 BIO_printf(bio_err, "Error Loading extension section %s\n",
647 /* If a pre-cert was requested, we need to add a poison extension */
649 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0)
651 BIO_printf(bio_err, "Error adding poison extension\n");
656 i = do_X509_sign(x509ss, pkey, digest, sigopts);
658 ERR_print_errors(bio_err);
664 /* Set up V3 context struct */
666 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
667 X509V3_set_nconf(&ext_ctx, req_conf);
671 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
673 BIO_printf(bio_err, "Error Loading extension section %s\n",
677 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
679 ERR_print_errors(bio_err);
686 BIO_printf(bio_err, "Cannot modify certificate subject\n");
692 BIO_printf(bio_err, "Modifying Request's Subject\n");
693 print_name(bio_err, "old subject=",
694 X509_REQ_get_subject_name(req), get_nameopt());
697 if (build_subject(req, subj, chtype, multirdn) == 0) {
698 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
704 print_name(bio_err, "new subject=",
705 X509_REQ_get_subject_name(req), get_nameopt());
709 if (verify && !x509) {
710 EVP_PKEY *tpubkey = pkey;
712 if (tpubkey == NULL) {
713 tpubkey = X509_REQ_get0_pubkey(req);
718 i = X509_REQ_verify(req, tpubkey);
723 BIO_printf(bio_err, "verify failure\n");
724 ERR_print_errors(bio_err);
725 } else { /* if (i > 0) */
726 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)) {
957 if (sk_CONF_VALUE_num(dn_sk) <= i)
960 v = sk_CONF_VALUE_value(dn_sk, i);
963 if (!check_end(type, "_min") || !check_end(type, "_max") ||
964 !check_end(type, "_default") || !check_end(type, "_value"))
967 * Skip past any leading X. X: X, etc to allow for multiple
970 for (p = v->name; *p; p++)
971 if ((*p == ':') || (*p == ',') || (*p == '.')) {
983 /* If OBJ not recognised ignore it */
984 if ((nid = OBJ_txt2nid(type)) == NID_undef)
986 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
988 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
993 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
995 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1000 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1002 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1008 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1010 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1015 if (!add_DN_object(subj, v->value, def, value, nid,
1016 n_min, n_max, chtype, mval))
1019 if (X509_NAME_entry_count(subj) == 0) {
1021 "error, no objects specified in config file\n");
1026 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1029 "\nPlease enter the following 'extra' attributes\n");
1031 "to be sent with your certificate request\n");
1038 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1041 v = sk_CONF_VALUE_value(attr_sk, i);
1043 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1046 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1048 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1054 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1056 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1062 if (!join(buf, sizeof(buf), type,"_min", "Name"))
1064 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1069 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1071 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1076 if (!add_attribute_object(req,
1077 v->value, def, value, nid, n_min,
1083 BIO_printf(bio_err, "No template, please set one up.\n");
1091 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1092 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1093 unsigned long chtype)
1095 int i, spec_char, plus_char;
1101 subj = X509_REQ_get_subject_name(req);
1103 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1105 v = sk_CONF_VALUE_value(dn_sk, i);
1109 * Skip past any leading X. X: X, etc to allow for multiple instances
1111 for (p = v->name; *p; p++) {
1112 #ifndef CHARSET_EBCDIC
1113 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1115 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1116 || (*p == os_toascii['.']));
1125 #ifndef CHARSET_EBCDIC
1126 plus_char = (*type == '+');
1128 plus_char = (*type == os_toascii['+']);
1136 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1137 (unsigned char *)v->value, -1, -1,
1143 if (!X509_NAME_entry_count(subj)) {
1144 BIO_printf(bio_err, "error, no objects specified in config file\n");
1148 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1149 v = sk_CONF_VALUE_value(attr_sk, i);
1150 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1151 (unsigned char *)v->value, -1))
1158 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1159 char *value, int nid, int n_min, int n_max,
1160 unsigned long chtype, int mval)
1166 BIO_printf(bio_err, "%s [%s]:", text, def);
1167 (void)BIO_flush(bio_err);
1168 if (value != NULL) {
1169 if (!join(buf, sizeof(buf), value, "\n", "DN value"))
1171 BIO_printf(bio_err, "%s\n", value);
1175 if (!fgets(buf, sizeof(buf), stdin))
1185 if (buf[0] == '\n') {
1186 if ((def == NULL) || (def[0] == '\0'))
1188 if (!join(buf, sizeof(buf), def, "\n", "DN default"))
1190 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1195 if (buf[i - 1] != '\n') {
1196 BIO_printf(bio_err, "weird input :-(\n");
1200 #ifdef CHARSET_EBCDIC
1201 ebcdic2ascii(buf, buf, i);
1203 if (!req_check_len(i, n_min, n_max)) {
1209 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1210 (unsigned char *)buf, -1, -1, mval))
1217 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1218 char *value, int nid, int n_min,
1219 int n_max, unsigned long chtype)
1222 static char buf[1024];
1226 BIO_printf(bio_err, "%s [%s]:", text, def);
1227 (void)BIO_flush(bio_err);
1228 if (value != NULL) {
1229 if (!join(buf, sizeof(buf), value, "\n", "Attribute value"))
1231 BIO_printf(bio_err, "%s\n", value);
1235 if (!fgets(buf, sizeof(buf), stdin))
1245 if (buf[0] == '\n') {
1246 if ((def == NULL) || (def[0] == '\0'))
1248 if (!join(buf, sizeof(buf), def, "\n", "Attribute default"))
1250 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1255 if (buf[i - 1] != '\n') {
1256 BIO_printf(bio_err, "weird input :-(\n");
1260 #ifdef CHARSET_EBCDIC
1261 ebcdic2ascii(buf, buf, i);
1263 if (!req_check_len(i, n_min, n_max)) {
1269 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1270 (unsigned char *)buf, -1)) {
1271 BIO_printf(bio_err, "Error adding attribute\n");
1272 ERR_print_errors(bio_err);
1281 static int req_check_len(int len, int n_min, int n_max)
1283 if ((n_min > 0) && (len < n_min)) {
1285 "string is too short, it needs to be at least %d bytes long\n",
1289 if ((n_max >= 0) && (len > n_max)) {
1291 "string is too long, it needs to be no more than %d bytes long\n",
1298 /* Check if the end of a string matches 'end' */
1299 static int check_end(const char *str, const char *end)
1308 tmp = str + slen - elen;
1309 return strcmp(tmp, end);
1313 * Merge the two strings together into the result buffer checking for
1314 * overflow and producing an error message if there is.
1316 static int join(char buf[], size_t buf_size, const char *name,
1317 const char *tail, const char *desc)
1319 const size_t name_len = strlen(name), tail_len = strlen(tail);
1321 if (name_len + tail_len + 1 > buf_size) {
1322 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1325 memcpy(buf, name, name_len);
1326 memcpy(buf + name_len, tail, tail_len + 1);
1330 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1331 int *pkey_type, long *pkeylen,
1332 char **palgnam, ENGINE *keygen_engine)
1334 EVP_PKEY_CTX *gctx = NULL;
1335 EVP_PKEY *param = NULL;
1338 const char *paramfile = NULL;
1341 *pkey_type = EVP_PKEY_RSA;
1343 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1344 *pkey_type = EVP_PKEY_RSA;
1345 keylen = atol(gstr);
1347 } else if (strncmp(gstr, "param:", 6) == 0) {
1348 paramfile = gstr + 6;
1350 const char *p = strchr(gstr, ':');
1353 const EVP_PKEY_ASN1_METHOD *ameth;
1360 * The lookup of a the string will cover all engines so keep a note
1361 * of the implementation.
1364 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1366 if (ameth == NULL) {
1367 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1371 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1372 #ifndef OPENSSL_NO_ENGINE
1373 ENGINE_finish(tmpeng);
1375 if (*pkey_type == EVP_PKEY_RSA) {
1377 keylen = atol(p + 1);
1382 } else if (p != NULL) {
1387 if (paramfile != NULL) {
1388 pbio = BIO_new_file(paramfile, "r");
1390 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1393 param = PEM_read_bio_Parameters(pbio, NULL);
1395 if (param == NULL) {
1398 (void)BIO_reset(pbio);
1399 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1401 param = X509_get_pubkey(x);
1408 if (param == NULL) {
1409 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1412 if (*pkey_type == -1) {
1413 *pkey_type = EVP_PKEY_id(param);
1414 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1415 BIO_printf(bio_err, "Key Type does not match parameters\n");
1416 EVP_PKEY_free(param);
1421 if (palgnam != NULL) {
1422 const EVP_PKEY_ASN1_METHOD *ameth;
1426 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1427 if (ameth == NULL) {
1428 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1431 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1432 *palgnam = OPENSSL_strdup(anam);
1433 #ifndef OPENSSL_NO_ENGINE
1434 ENGINE_finish(tmpeng);
1438 if (param != NULL) {
1439 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1440 *pkeylen = EVP_PKEY_bits(param);
1441 EVP_PKEY_free(param);
1443 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1447 BIO_puts(bio_err, "Error allocating keygen context\n");
1448 ERR_print_errors(bio_err);
1452 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1453 BIO_puts(bio_err, "Error initializing keygen context\n");
1454 ERR_print_errors(bio_err);
1455 EVP_PKEY_CTX_free(gctx);
1458 #ifndef OPENSSL_NO_RSA
1459 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1460 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1461 BIO_puts(bio_err, "Error setting RSA keysize\n");
1462 ERR_print_errors(bio_err);
1463 EVP_PKEY_CTX_free(gctx);
1472 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1475 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1477 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1486 BIO_write(b, &c, 1);
1491 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1492 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1494 EVP_PKEY_CTX *pkctx = NULL;
1499 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1501 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1502 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1503 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1504 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1505 ERR_print_errors(bio_err);
1512 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1513 STACK_OF(OPENSSL_STRING) *sigopts)
1516 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1518 rv = do_sign_init(mctx, pkey, md, sigopts);
1520 rv = X509_sign_ctx(x, mctx);
1521 EVP_MD_CTX_free(mctx);
1522 return rv > 0 ? 1 : 0;
1525 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1526 STACK_OF(OPENSSL_STRING) *sigopts)
1529 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1530 rv = do_sign_init(mctx, pkey, md, sigopts);
1532 rv = X509_REQ_sign_ctx(x, mctx);
1533 EVP_MD_CTX_free(mctx);
1534 return rv > 0 ? 1 : 0;
1537 int do_X509_CRL_sign(X509_CRL *x, EVP_PKEY *pkey, const EVP_MD *md,
1538 STACK_OF(OPENSSL_STRING) *sigopts)
1541 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1542 rv = do_sign_init(mctx, pkey, md, sigopts);
1544 rv = X509_CRL_sign_ctx(x, mctx);
1545 EVP_MD_CTX_free(mctx);
1546 return rv > 0 ? 1 : 0;