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, char *subj, unsigned long chtype,
51 static int prompt_info(X509_REQ *req,
52 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
53 STACK_OF(CONF_VALUE) *attr_sk, 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,
85 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, 'p', "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 {"", OPT_MD, '-', "Any supported digest"},
130 #ifndef OPENSSL_NO_ENGINE
131 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
132 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
133 "Specify engine to be used for key generation operations"},
138 int req_main(int argc, char **argv)
140 ASN1_INTEGER *serial = NULL;
141 BIO *in = NULL, *out = NULL;
142 ENGINE *e = NULL, *gen_eng = NULL;
143 EVP_PKEY *pkey = NULL;
144 EVP_PKEY_CTX *genctx = NULL;
145 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL;
147 X509_REQ *req = NULL;
148 const EVP_CIPHER *cipher = NULL;
149 const EVP_MD *md_alg = NULL, *digest = NULL;
150 char *extensions = NULL, *infile = NULL;
151 char *outfile = NULL, *keyfile = NULL, *inrand = NULL;
152 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
153 char *passin = NULL, *passout = NULL;
154 char *nofree_passin = NULL, *nofree_passout = NULL;
155 char *req_exts = NULL, *subj = NULL;
156 char *template = default_config_file, *keyout = NULL;
157 const char *keyalg = NULL;
159 int ret = 1, x509 = 0, days = 30, i = 0, newreq = 0, verbose = 0;
160 int pkey_type = -1, private = 0;
161 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
162 int modulus = 0, multirdn = 0, verify = 0, noout = 0, text = 0;
163 int nodes = 0, newhdr = 0, subject = 0, pubkey = 0;
165 unsigned long chtype = MBSTRING_ASC, nmflag = 0, 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;
280 if (!set_name_ex(&nmflag, opt_arg()))
284 if (!set_cert_ex(&reqflag, opt_arg()))
294 days = atoi(opt_arg());
297 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
307 case OPT_MULTIVALUE_RDN:
311 extensions = opt_arg();
314 req_exts = opt_arg();
317 if (!opt_md(opt_unknown(), &md_alg))
323 argc = opt_num_rest();
328 nmflag = XN_FLAG_ONELINE;
330 /* TODO: simplify this as pkey is still always NULL here */
331 private = newreq && (pkey == NULL) ? 1 : 0;
333 if (!app_passwd(passargin, passargout, &passin, &passout)) {
334 BIO_printf(bio_err, "Error getting passwords\n");
339 BIO_printf(bio_err, "Using configuration from %s\n", template);
340 req_conf = app_load_config(template);
341 if (template != default_config_file && !app_load_modules(req_conf))
344 if (req_conf != NULL) {
345 p = NCONF_get_string(req_conf, NULL, "oid_file");
351 oid_bio = BIO_new_file(p, "r");
352 if (oid_bio == NULL) {
354 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
355 ERR_print_errors(bio_err);
358 OBJ_create_objects(oid_bio);
363 if (!add_oid_section(req_conf))
366 if (md_alg == NULL) {
367 p = NCONF_get_string(req_conf, SECTION, "default_md");
371 if (!opt_md(p, &md_alg))
378 extensions = NCONF_get_string(req_conf, SECTION, V3_EXTENSIONS);
383 /* Check syntax of file */
385 X509V3_set_ctx_test(&ctx);
386 X509V3_set_nconf(&ctx, req_conf);
387 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
389 "Error Loading extension section %s\n", extensions);
394 if (passin == NULL) {
395 passin = nofree_passin =
396 NCONF_get_string(req_conf, SECTION, "input_password");
401 if (passout == NULL) {
402 passout = nofree_passout =
403 NCONF_get_string(req_conf, SECTION, "output_password");
408 p = NCONF_get_string(req_conf, SECTION, STRING_MASK);
412 if (p && !ASN1_STRING_set_default_mask_asc(p)) {
413 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
417 if (chtype != MBSTRING_UTF8) {
418 p = NCONF_get_string(req_conf, SECTION, UTF8_IN);
421 else if (strcmp(p, "yes") == 0)
422 chtype = MBSTRING_UTF8;
426 req_exts = NCONF_get_string(req_conf, SECTION, REQ_EXTENSIONS);
431 /* Check syntax of file */
433 X509V3_set_ctx_test(&ctx);
434 X509V3_set_nconf(&ctx, req_conf);
435 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
437 "Error Loading request extension section %s\n",
443 if (keyfile != NULL) {
444 pkey = load_key(keyfile, keyform, 0, passin, e, "Private Key");
446 /* load_key() has already printed an appropriate message */
449 char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
450 if (randfile == NULL)
452 app_RAND_load_file(randfile, 0);
456 if (newreq && (pkey == NULL)) {
457 char *randfile = NCONF_get_string(req_conf, SECTION, "RANDFILE");
458 if (randfile == NULL)
460 app_RAND_load_file(randfile, 0);
462 app_RAND_load_files(inrand);
464 if (!NCONF_get_number(req_conf, SECTION, BITS, &newkey)) {
465 newkey = DEFAULT_KEY_LENGTH;
469 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
470 &keyalgstr, gen_eng);
475 if (newkey < MIN_KEY_LENGTH
476 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
477 BIO_printf(bio_err, "private key length is too short,\n");
478 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
479 MIN_KEY_LENGTH, newkey);
484 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
485 &keyalgstr, gen_eng);
492 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
493 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
494 if (pkey_ctrl_string(genctx, genopt) <= 0) {
495 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
496 ERR_print_errors(bio_err);
502 if (pkey_type == EVP_PKEY_EC) {
503 BIO_printf(bio_err, "Generating an EC private key\n");
505 BIO_printf(bio_err, "Generating a %ld bit %s private key\n",
509 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
510 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
512 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
513 BIO_puts(bio_err, "Error Generating Key\n");
517 EVP_PKEY_CTX_free(genctx);
520 app_RAND_write_file(randfile);
522 if (keyout == NULL) {
523 keyout = NCONF_get_string(req_conf, SECTION, KEYFILE);
529 BIO_printf(bio_err, "writing new private key to stdout\n");
531 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
532 out = bio_open_owner(keyout, outformat, private);
536 p = NCONF_get_string(req_conf, SECTION, "encrypt_rsa_key");
539 p = NCONF_get_string(req_conf, SECTION, "encrypt_key");
543 if ((p != NULL) && (strcmp(p, "no") == 0))
551 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
552 NULL, 0, NULL, passout)) {
553 if ((ERR_GET_REASON(ERR_peek_error()) ==
554 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
563 BIO_printf(bio_err, "-----\n");
567 in = bio_open_default(infile, 'r', informat);
571 if (informat == FORMAT_ASN1)
572 req = d2i_X509_REQ_bio(in, NULL);
574 req = PEM_read_bio_X509_REQ(in, NULL, NULL, NULL);
576 BIO_printf(bio_err, "unable to load X509 request\n");
581 if (newreq || x509) {
583 BIO_printf(bio_err, "you need to specify a private key\n");
588 req = X509_REQ_new();
593 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
594 subj = NULL; /* done processing '-subj' option */
596 BIO_printf(bio_err, "problems making Certificate Request\n");
603 if ((x509ss = X509_new()) == NULL)
606 /* Set version to V3 */
607 if (extensions && !X509_set_version(x509ss, 2))
610 if (!X509_set_serialNumber(x509ss, serial))
613 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
617 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
619 if (!X509_gmtime_adj(X509_get_notBefore(x509ss), 0))
621 if (!X509_time_adj_ex(X509_get_notAfter(x509ss), days, 0, NULL))
623 if (!X509_set_subject_name
624 (x509ss, X509_REQ_get_subject_name(req)))
626 tmppkey = X509_REQ_get0_pubkey(req);
627 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
630 /* Set up V3 context struct */
632 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, 0);
633 X509V3_set_nconf(&ext_ctx, req_conf);
636 if (extensions && !X509V3_EXT_add_nconf(req_conf,
637 &ext_ctx, extensions,
639 BIO_printf(bio_err, "Error Loading extension section %s\n",
644 i = do_X509_sign(x509ss, pkey, digest, sigopts);
646 ERR_print_errors(bio_err);
652 /* Set up V3 context struct */
654 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
655 X509V3_set_nconf(&ext_ctx, req_conf);
658 if (req_exts && !X509V3_EXT_REQ_add_nconf(req_conf,
661 BIO_printf(bio_err, "Error Loading extension section %s\n",
665 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
667 ERR_print_errors(bio_err);
674 BIO_printf(bio_err, "Cannot modify certificate subject\n");
680 BIO_printf(bio_err, "Modifying Request's Subject\n");
681 print_name(bio_err, "old subject=",
682 X509_REQ_get_subject_name(req), nmflag);
685 if (build_subject(req, subj, chtype, multirdn) == 0) {
686 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
692 print_name(bio_err, "new subject=",
693 X509_REQ_get_subject_name(req), nmflag);
697 if (verify && !x509) {
698 EVP_PKEY *tpubkey = pkey;
700 if (tpubkey == NULL) {
701 tpubkey = X509_REQ_get0_pubkey(req);
706 i = X509_REQ_verify(req, tpubkey);
711 BIO_printf(bio_err, "verify failure\n");
712 ERR_print_errors(bio_err);
713 } else /* if (i > 0) */
714 BIO_printf(bio_err, "verify OK\n");
717 if (noout && !text && !modulus && !subject && !pubkey) {
722 out = bio_open_default(outfile,
723 keyout != NULL && outfile != NULL &&
724 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
731 tpubkey = X509_REQ_get_pubkey(req);
732 if (tpubkey == NULL) {
733 BIO_printf(bio_err, "Error getting public key\n");
734 ERR_print_errors(bio_err);
737 PEM_write_bio_PUBKEY(out, tpubkey);
738 EVP_PKEY_free(tpubkey);
743 X509_print_ex(out, x509ss, nmflag, reqflag);
745 X509_REQ_print_ex(out, req, nmflag, reqflag);
750 print_name(out, "subject=", X509_get_subject_name(x509ss),
753 print_name(out, "subject=", X509_REQ_get_subject_name(req),
761 tpubkey = X509_get_pubkey(x509ss);
763 tpubkey = X509_REQ_get_pubkey(req);
764 if (tpubkey == NULL) {
765 fprintf(stdout, "Modulus=unavailable\n");
768 fprintf(stdout, "Modulus=");
769 #ifndef OPENSSL_NO_RSA
770 if (EVP_PKEY_base_id(tpubkey) == EVP_PKEY_RSA) {
772 RSA_get0_key(EVP_PKEY_get0_RSA(tpubkey), &n, NULL, NULL);
776 fprintf(stdout, "Wrong Algorithm type");
777 EVP_PKEY_free(tpubkey);
778 fprintf(stdout, "\n");
781 if (!noout && !x509) {
782 if (outformat == FORMAT_ASN1)
783 i = i2d_X509_REQ_bio(out, req);
785 i = PEM_write_bio_X509_REQ_NEW(out, req);
787 i = PEM_write_bio_X509_REQ(out, req);
789 BIO_printf(bio_err, "unable to write X509 request\n");
793 if (!noout && x509 && (x509ss != NULL)) {
794 if (outformat == FORMAT_ASN1)
795 i = i2d_X509_bio(out, x509ss);
797 i = PEM_write_bio_X509(out, x509ss);
799 BIO_printf(bio_err, "unable to write X509 certificate\n");
806 ERR_print_errors(bio_err);
808 NCONF_free(req_conf);
812 EVP_PKEY_CTX_free(genctx);
813 sk_OPENSSL_STRING_free(pkeyopts);
814 sk_OPENSSL_STRING_free(sigopts);
815 #ifndef OPENSSL_NO_ENGINE
816 ENGINE_free(gen_eng);
818 OPENSSL_free(keyalgstr);
821 ASN1_INTEGER_free(serial);
822 if (passin != nofree_passin)
823 OPENSSL_free(passin);
824 if (passout != nofree_passout)
825 OPENSSL_free(passout);
829 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
830 int attribs, unsigned long chtype)
834 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
835 char *tmp, *dn_sect, *attr_sect;
837 tmp = NCONF_get_string(req_conf, SECTION, PROMPT);
840 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
843 dn_sect = NCONF_get_string(req_conf, SECTION, DISTINGUISHED_NAME);
844 if (dn_sect == NULL) {
845 BIO_printf(bio_err, "unable to find '%s' in config\n",
849 dn_sk = NCONF_get_section(req_conf, dn_sect);
851 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
855 attr_sect = NCONF_get_string(req_conf, SECTION, ATTRIBUTES);
856 if (attr_sect == NULL) {
860 attr_sk = NCONF_get_section(req_conf, attr_sect);
861 if (attr_sk == NULL) {
862 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
867 /* setup version number */
868 if (!X509_REQ_set_version(req, 0L))
869 goto err; /* version 1 */
872 i = build_subject(req, subj, chtype, multirdn);
874 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
876 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
881 if (!X509_REQ_set_pubkey(req, pkey))
890 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
891 * where characters may be escaped by \
893 static int build_subject(X509_REQ *req, char *subject, unsigned long chtype,
898 if ((n = parse_name(subject, chtype, multirdn)) == NULL)
901 if (!X509_REQ_set_subject_name(req, n)) {
909 static int prompt_info(X509_REQ *req,
910 STACK_OF(CONF_VALUE) *dn_sk, char *dn_sect,
911 STACK_OF(CONF_VALUE) *attr_sk, char *attr_sect,
912 int attribs, unsigned long chtype)
923 subj = X509_REQ_get_subject_name(req);
927 "You are about to be asked to enter information that will be incorporated\n");
928 BIO_printf(bio_err, "into your certificate request.\n");
930 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
932 "There are quite a few fields but you can leave some blank\n");
934 "For some fields there will be a default value,\n");
936 "If you enter '.', the field will be left blank.\n");
937 BIO_printf(bio_err, "-----\n");
940 if (sk_CONF_VALUE_num(dn_sk)) {
944 if (sk_CONF_VALUE_num(dn_sk) <= i)
947 v = sk_CONF_VALUE_value(dn_sk, i);
950 if (!check_end(type, "_min") || !check_end(type, "_max") ||
951 !check_end(type, "_default") || !check_end(type, "_value"))
954 * Skip past any leading X. X: X, etc to allow for multiple
957 for (p = v->name; *p; p++)
958 if ((*p == ':') || (*p == ',') || (*p == '.')) {
969 /* If OBJ not recognised ignore it */
970 if ((nid = OBJ_txt2nid(type)) == NID_undef)
972 if (BIO_snprintf(buf, sizeof buf, "%s_default", v->name)
973 >= (int)sizeof(buf)) {
974 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
978 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
983 BIO_snprintf(buf, sizeof buf, "%s_value", v->name);
984 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
989 BIO_snprintf(buf, sizeof buf, "%s_min", v->name);
990 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
995 BIO_snprintf(buf, sizeof buf, "%s_max", v->name);
996 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1001 if (!add_DN_object(subj, v->value, def, value, nid,
1002 n_min, n_max, chtype, mval))
1005 if (X509_NAME_entry_count(subj) == 0) {
1007 "error, no objects specified in config file\n");
1012 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1015 "\nPlease enter the following 'extra' attributes\n");
1017 "to be sent with your certificate request\n");
1023 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1026 v = sk_CONF_VALUE_value(attr_sk, i);
1028 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1031 if (BIO_snprintf(buf, sizeof buf, "%s_default", type)
1032 >= (int)sizeof(buf)) {
1033 BIO_printf(bio_err, "Name '%s' too long\n", v->name);
1037 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1043 BIO_snprintf(buf, sizeof buf, "%s_value", type);
1044 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1050 BIO_snprintf(buf, sizeof buf, "%s_min", type);
1051 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1056 BIO_snprintf(buf, sizeof buf, "%s_max", type);
1057 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1062 if (!add_attribute_object(req,
1063 v->value, def, value, nid, n_min,
1069 BIO_printf(bio_err, "No template, please set one up.\n");
1077 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1078 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1079 unsigned long chtype)
1081 int i, spec_char, plus_char;
1087 subj = X509_REQ_get_subject_name(req);
1089 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1091 v = sk_CONF_VALUE_value(dn_sk, i);
1095 * Skip past any leading X. X: X, etc to allow for multiple instances
1097 for (p = v->name; *p; p++) {
1098 #ifndef CHARSET_EBCDIC
1099 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1101 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1102 || (*p == os_toascii['.']));
1111 #ifndef CHARSET_EBCDIC
1112 plus_char = (*p == '+');
1114 plus_char = (*p == os_toascii['+']);
1121 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1122 (unsigned char *)v->value, -1, -1,
1128 if (!X509_NAME_entry_count(subj)) {
1129 BIO_printf(bio_err, "error, no objects specified in config file\n");
1133 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1134 v = sk_CONF_VALUE_value(attr_sk, i);
1135 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1136 (unsigned char *)v->value, -1))
1143 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1144 char *value, int nid, int n_min, int n_max,
1145 unsigned long chtype, int mval)
1151 BIO_printf(bio_err, "%s [%s]:", text, def);
1152 (void)BIO_flush(bio_err);
1153 if (value != NULL) {
1154 OPENSSL_strlcpy(buf, value, sizeof buf);
1155 OPENSSL_strlcat(buf, "\n", sizeof buf);
1156 BIO_printf(bio_err, "%s\n", value);
1160 if (!fgets(buf, sizeof buf, stdin))
1170 else if (buf[0] == '\n') {
1171 if ((def == NULL) || (def[0] == '\0'))
1173 OPENSSL_strlcpy(buf, def, sizeof buf);
1174 OPENSSL_strlcat(buf, "\n", sizeof buf);
1175 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1179 if (buf[i - 1] != '\n') {
1180 BIO_printf(bio_err, "weird input :-(\n");
1184 #ifdef CHARSET_EBCDIC
1185 ebcdic2ascii(buf, buf, i);
1187 if (!req_check_len(i, n_min, n_max)) {
1193 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1194 (unsigned char *)buf, -1, -1, mval))
1201 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1202 char *value, int nid, int n_min,
1203 int n_max, unsigned long chtype)
1206 static char buf[1024];
1210 BIO_printf(bio_err, "%s [%s]:", text, def);
1211 (void)BIO_flush(bio_err);
1212 if (value != NULL) {
1213 OPENSSL_strlcpy(buf, value, sizeof buf);
1214 OPENSSL_strlcat(buf, "\n", sizeof buf);
1215 BIO_printf(bio_err, "%s\n", value);
1219 if (!fgets(buf, sizeof buf, stdin))
1229 else if (buf[0] == '\n') {
1230 if ((def == NULL) || (def[0] == '\0'))
1232 OPENSSL_strlcpy(buf, def, sizeof buf);
1233 OPENSSL_strlcat(buf, "\n", sizeof buf);
1234 } else if ((buf[0] == '.') && (buf[1] == '\n'))
1238 if (buf[i - 1] != '\n') {
1239 BIO_printf(bio_err, "weird input :-(\n");
1243 #ifdef CHARSET_EBCDIC
1244 ebcdic2ascii(buf, buf, i);
1246 if (!req_check_len(i, n_min, n_max)) {
1252 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1253 (unsigned char *)buf, -1)) {
1254 BIO_printf(bio_err, "Error adding attribute\n");
1255 ERR_print_errors(bio_err);
1264 static int req_check_len(int len, int n_min, int n_max)
1266 if ((n_min > 0) && (len < n_min)) {
1268 "string is too short, it needs to be at least %d bytes long\n",
1272 if ((n_max >= 0) && (len > n_max)) {
1274 "string is too long, it needs to be less than %d bytes long\n",
1281 /* Check if the end of a string matches 'end' */
1282 static int check_end(const char *str, const char *end)
1290 tmp = str + slen - elen;
1291 return strcmp(tmp, end);
1294 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1295 int *pkey_type, long *pkeylen,
1296 char **palgnam, ENGINE *keygen_engine)
1298 EVP_PKEY_CTX *gctx = NULL;
1299 EVP_PKEY *param = NULL;
1302 const char *paramfile = NULL;
1305 *pkey_type = EVP_PKEY_RSA;
1307 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1308 *pkey_type = EVP_PKEY_RSA;
1309 keylen = atol(gstr);
1311 } else if (strncmp(gstr, "param:", 6) == 0)
1312 paramfile = gstr + 6;
1314 const char *p = strchr(gstr, ':');
1317 const EVP_PKEY_ASN1_METHOD *ameth;
1324 * The lookup of a the string will cover all engines so keep a note
1325 * of the implementation.
1328 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1331 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1335 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1336 #ifndef OPENSSL_NO_ENGINE
1337 ENGINE_finish(tmpeng);
1339 if (*pkey_type == EVP_PKEY_RSA) {
1341 keylen = atol(p + 1);
1350 pbio = BIO_new_file(paramfile, "r");
1352 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1355 param = PEM_read_bio_Parameters(pbio, NULL);
1359 (void)BIO_reset(pbio);
1360 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1362 param = X509_get_pubkey(x);
1370 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1373 if (*pkey_type == -1)
1374 *pkey_type = EVP_PKEY_id(param);
1375 else if (*pkey_type != EVP_PKEY_base_id(param)) {
1376 BIO_printf(bio_err, "Key Type does not match parameters\n");
1377 EVP_PKEY_free(param);
1383 const EVP_PKEY_ASN1_METHOD *ameth;
1386 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1388 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1391 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1392 *palgnam = OPENSSL_strdup(anam);
1393 #ifndef OPENSSL_NO_ENGINE
1394 ENGINE_finish(tmpeng);
1399 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1400 *pkeylen = EVP_PKEY_bits(param);
1401 EVP_PKEY_free(param);
1403 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1406 BIO_puts(bio_err, "Error allocating keygen context\n");
1407 ERR_print_errors(bio_err);
1411 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1412 BIO_puts(bio_err, "Error initializing keygen context\n");
1413 ERR_print_errors(bio_err);
1414 EVP_PKEY_CTX_free(gctx);
1417 #ifndef OPENSSL_NO_RSA
1418 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1419 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1420 BIO_puts(bio_err, "Error setting RSA keysize\n");
1421 ERR_print_errors(bio_err);
1422 EVP_PKEY_CTX_free(gctx);
1431 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1434 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1436 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1445 BIO_write(b, &c, 1);
1450 static int do_sign_init(EVP_MD_CTX *ctx, EVP_PKEY *pkey,
1451 const EVP_MD *md, STACK_OF(OPENSSL_STRING) *sigopts)
1453 EVP_PKEY_CTX *pkctx = NULL;
1458 if (!EVP_DigestSignInit(ctx, &pkctx, md, NULL, pkey))
1460 for (i = 0; i < sk_OPENSSL_STRING_num(sigopts); i++) {
1461 char *sigopt = sk_OPENSSL_STRING_value(sigopts, i);
1462 if (pkey_ctrl_string(pkctx, sigopt) <= 0) {
1463 BIO_printf(bio_err, "parameter error \"%s\"\n", sigopt);
1464 ERR_print_errors(bio_err);
1471 int do_X509_sign(X509 *x, EVP_PKEY *pkey, const EVP_MD *md,
1472 STACK_OF(OPENSSL_STRING) *sigopts)
1475 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1477 rv = do_sign_init(mctx, pkey, md, sigopts);
1479 rv = X509_sign_ctx(x, mctx);
1480 EVP_MD_CTX_free(mctx);
1481 return rv > 0 ? 1 : 0;
1484 int do_X509_REQ_sign(X509_REQ *x, EVP_PKEY *pkey, const EVP_MD *md,
1485 STACK_OF(OPENSSL_STRING) *sigopts)
1488 EVP_MD_CTX *mctx = EVP_MD_CTX_new();
1489 rv = do_sign_init(mctx, pkey, md, sigopts);
1491 rv = X509_REQ_sign_ctx(x, mctx);
1492 EVP_MD_CTX_free(mctx);
1493 return rv > 0 ? 1 : 0;
1496 int do_X509_CRL_sign(X509_CRL *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_CRL_sign_ctx(x, mctx);
1504 EVP_MD_CTX_free(mctx);
1505 return rv > 0 ? 1 : 0;