2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
17 #include <openssl/bio.h>
18 #include <openssl/evp.h>
19 #include <openssl/conf.h>
20 #include <openssl/err.h>
21 #include <openssl/asn1.h>
22 #include <openssl/x509.h>
23 #include <openssl/x509v3.h>
24 #include <openssl/objects.h>
25 #include <openssl/pem.h>
26 #include <openssl/bn.h>
27 #include <openssl/lhash.h>
28 #ifndef OPENSSL_NO_RSA
29 # include <openssl/rsa.h>
31 #ifndef OPENSSL_NO_DSA
32 # include <openssl/dsa.h>
35 #define BITS "default_bits"
36 #define KEYFILE "default_keyfile"
37 #define PROMPT "prompt"
38 #define DISTINGUISHED_NAME "distinguished_name"
39 #define ATTRIBUTES "attributes"
40 #define V3_EXTENSIONS "x509_extensions"
41 #define REQ_EXTENSIONS "req_extensions"
42 #define STRING_MASK "string_mask"
43 #define UTF8_IN "utf8"
45 #define DEFAULT_KEY_LENGTH 2048
46 #define MIN_KEY_LENGTH 512
48 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *dn, int mutlirdn,
49 int attribs, unsigned long chtype);
50 static int build_subject(X509_REQ *req, const char *subj, unsigned long chtype,
52 static int prompt_info(X509_REQ *req,
53 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
54 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
55 int attribs, unsigned long chtype);
56 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
57 STACK_OF(CONF_VALUE) *attr, int attribs,
58 unsigned long chtype);
59 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
60 char *value, int nid, int n_min, int n_max,
61 unsigned long chtype);
62 static int add_DN_object(X509_NAME *n, char *text, const char *def,
63 char *value, int nid, int n_min, int n_max,
64 unsigned long chtype, int mval);
65 static int genpkey_cb(EVP_PKEY_CTX *ctx);
66 static int build_data(char *text, const char *def,
67 char *value, int n_min, int n_max,
68 char *buf, const int buf_size,
69 const char *desc1, const char *desc2
71 static int req_check_len(int len, int n_min, int n_max);
72 static int check_end(const char *str, const char *end);
73 static int join(char buf[], size_t buf_size, const char *name,
74 const char *tail, const char *desc);
75 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
76 int *pkey_type, long *pkeylen,
77 char **palgnam, ENGINE *keygen_engine);
79 static const char *section = "req";
80 static CONF *req_conf = NULL;
81 static CONF *addext_conf = NULL;
84 typedef enum OPTION_choice {
85 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
86 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
87 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
88 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
89 OPT_PKEYOPT, OPT_SIGOPT, OPT_VFYOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
90 OPT_VERIFY, OPT_NOENC, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
91 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
92 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL, OPT_ADDEXT, OPT_EXTENSIONS,
93 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
95 OPT_R_ENUM, OPT_PROV_ENUM
98 const OPTIONS req_options[] = {
99 OPT_SECTION("General"),
100 {"help", OPT_HELP, '-', "Display this summary"},
101 #ifndef OPENSSL_NO_ENGINE
102 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
103 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
104 "Specify engine to be used for key generation operations"},
106 {"in", OPT_IN, '<', "Input file"},
107 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
108 {"verify", OPT_VERIFY, '-', "Verify signature on REQ"},
110 OPT_SECTION("Certificate"),
111 {"new", OPT_NEW, '-', "New request"},
112 {"config", OPT_CONFIG, '<', "Request template file"},
113 {"section", OPT_SECTION, 's', "Config section to use (default \"req\")"},
114 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
115 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
116 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
117 {"text", OPT_TEXT, '-', "Text form of request"},
118 {"x509", OPT_X509, '-',
119 "Output an 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 "Deprecated; multi-valued RDNs support is always on."},
125 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
126 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
127 {"addext", OPT_ADDEXT, 's',
128 "Additional cert extension key=value pair (may be given more than once)"},
129 {"extensions", OPT_EXTENSIONS, 's',
130 "Cert extension section (override value in config file)"},
131 {"reqexts", OPT_REQEXTS, 's',
132 "Request extension section (override value in config file)"},
133 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
135 OPT_SECTION("Keys and Signing"),
136 {"key", OPT_KEY, 's', "Private key to use"},
137 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
138 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
139 {"keyout", OPT_KEYOUT, '>', "File to send the key to"},
140 {"passin", OPT_PASSIN, 's', "Private key password source"},
141 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
142 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
143 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
144 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
145 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
146 {"", OPT_MD, '-', "Any supported digest"},
148 OPT_SECTION("Output"),
149 {"out", OPT_OUT, '>', "Output file"},
150 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
151 {"batch", OPT_BATCH, '-',
152 "Do not ask anything during request generation"},
153 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
154 {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
155 {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
156 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
157 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
158 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
167 * An LHASH of strings, where each string is an extension name.
169 static unsigned long ext_name_hash(const OPENSSL_STRING *a)
171 return OPENSSL_LH_strhash((const char *)a);
174 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
176 return strcmp((const char *)a, (const char *)b);
179 static void exts_cleanup(OPENSSL_STRING *x)
181 OPENSSL_free((char *)x);
185 * Is the |kv| key already duplicated? This is remarkably tricky to get
186 * right. Return 0 if unique, -1 on runtime error; 1 if found or a syntax
189 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
195 /* Skip leading whitespace, make a copy. */
196 while (*kv && isspace(*kv))
199 if ((p = strchr(kv, '=')) == NULL)
202 if ((kv = OPENSSL_strdup(kv)) == NULL)
205 /* Skip trailing space before the equal sign. */
206 for (p = kv + off; p > kv; --p)
215 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
216 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING*)kv);
220 } else if (lh_OPENSSL_STRING_error(addexts)) {
228 int req_main(int argc, char **argv)
230 ASN1_INTEGER *serial = NULL;
232 ENGINE *e = NULL, *gen_eng = NULL;
233 EVP_PKEY *pkey = NULL;
234 EVP_PKEY_CTX *genctx = NULL;
235 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
236 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
238 X509_REQ *req = NULL;
239 const EVP_CIPHER *cipher = NULL;
240 const EVP_MD *md_alg = NULL, *digest = NULL;
241 BIO *addext_bio = NULL;
242 char *extensions = NULL, *infile = NULL;
243 char *outfile = NULL, *keyfile = NULL;
244 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
245 char *passin = NULL, *passout = NULL;
246 char *nofree_passin = NULL, *nofree_passout = NULL;
247 char *req_exts = NULL, *subj = NULL;
248 char *template = default_config_file, *keyout = NULL;
249 const char *keyalg = NULL;
251 int ret = 1, x509 = 0, days = 0, i = 0, newreq = 0, verbose = 0;
252 int pkey_type = -1, private = 0;
253 int informat = FORMAT_PEM, outformat = FORMAT_PEM, keyform = FORMAT_PEM;
254 int modulus = 0, multirdn = 1, verify = 0, noout = 0, text = 0;
255 int noenc = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
257 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
259 #ifndef OPENSSL_NO_DES
260 cipher = EVP_des_ede3_cbc();
263 prog = opt_init(argc, argv, req_options);
264 while ((o = opt_next()) != OPT_EOF) {
269 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
272 opt_help(req_options);
276 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
280 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
284 e = setup_engine(opt_arg(), 0);
286 case OPT_KEYGEN_ENGINE:
287 #ifndef OPENSSL_NO_ENGINE
288 gen_eng = setup_engine(opt_arg(), 0);
289 if (gen_eng == NULL) {
290 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
305 template = opt_arg();
311 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
324 passargin = opt_arg();
327 passargout = opt_arg();
334 if (!opt_provider(o))
342 if (pkeyopts == NULL)
343 pkeyopts = sk_OPENSSL_STRING_new_null();
345 || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
350 sigopts = sk_OPENSSL_STRING_new_null();
351 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
356 vfyopts = sk_OPENSSL_STRING_new_null();
357 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
383 chtype = MBSTRING_UTF8;
386 if (!set_nameopt(opt_arg()))
390 if (!set_cert_ex(&reqflag, opt_arg()))
400 days = atoi(opt_arg());
403 if (serial != NULL) {
404 BIO_printf(bio_err, "Serial number supplied twice\n");
407 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
417 case OPT_MULTIVALUE_RDN:
422 if (addexts == NULL) {
423 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
424 addext_bio = BIO_new(BIO_s_mem());
425 if (addexts == NULL || addext_bio == NULL)
428 i = duplicated(addexts, p);
430 BIO_printf(bio_err, "Duplicate extension: %s\n", p);
433 if (i < 0 || BIO_printf(addext_bio, "%s\n", p) < 0)
437 extensions = opt_arg();
440 req_exts = opt_arg();
443 newreq = precert = 1;
446 if (!opt_md(opt_unknown(), &md_alg))
452 argc = opt_num_rest();
457 BIO_printf(bio_err, "Ignoring -days; not generating a certificate\n");
458 if (x509 && infile == NULL)
461 /* TODO: simplify this as pkey is still always NULL here */
462 private = newreq && (pkey == NULL) ? 1 : 0;
464 if (!app_passwd(passargin, passargout, &passin, &passout)) {
465 BIO_printf(bio_err, "Error getting passwords\n");
470 BIO_printf(bio_err, "Using configuration from %s\n", template);
471 if ((req_conf = app_load_config(template)) == NULL)
473 if (addext_bio != NULL) {
476 "Using additional configuration from -addext options\n");
477 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
480 if (template != default_config_file && !app_load_modules(req_conf))
483 if (req_conf != NULL) {
484 p = NCONF_get_string(req_conf, NULL, "oid_file");
490 oid_bio = BIO_new_file(p, "r");
491 if (oid_bio == NULL) {
493 BIO_printf(bio_err,"problems opening %s for extra oid's\n",p);
494 ERR_print_errors(bio_err);
497 OBJ_create_objects(oid_bio);
502 if (!add_oid_section(req_conf))
505 if (md_alg == NULL) {
506 p = NCONF_get_string(req_conf, section, "default_md");
510 if (!opt_md(p, &md_alg))
516 if (extensions == NULL) {
517 extensions = NCONF_get_string(req_conf, section, V3_EXTENSIONS);
518 if (extensions == NULL)
521 if (extensions != NULL) {
522 /* Check syntax of file */
524 X509V3_set_ctx_test(&ctx);
525 X509V3_set_nconf(&ctx, req_conf);
526 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
528 "Error checking x509 extension section %s\n", extensions);
532 if (addext_conf != NULL) {
533 /* Check syntax of command line extensions */
535 X509V3_set_ctx_test(&ctx);
536 X509V3_set_nconf(&ctx, addext_conf);
537 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
538 BIO_printf(bio_err, "Error checking extensions defined using -addext\n");
543 if (passin == NULL) {
544 passin = nofree_passin =
545 NCONF_get_string(req_conf, section, "input_password");
550 if (passout == NULL) {
551 passout = nofree_passout =
552 NCONF_get_string(req_conf, section, "output_password");
557 p = NCONF_get_string(req_conf, section, STRING_MASK);
561 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
562 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
566 if (chtype != MBSTRING_UTF8) {
567 p = NCONF_get_string(req_conf, section, UTF8_IN);
570 else if (strcmp(p, "yes") == 0)
571 chtype = MBSTRING_UTF8;
574 if (req_exts == NULL) {
575 req_exts = NCONF_get_string(req_conf, section, REQ_EXTENSIONS);
576 if (req_exts == NULL)
579 if (req_exts != NULL) {
580 /* Check syntax of file */
582 X509V3_set_ctx_test(&ctx);
583 X509V3_set_nconf(&ctx, req_conf);
584 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
586 "Error checking request extension section %s\n",
592 if (keyfile != NULL) {
593 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
596 app_RAND_load_conf(req_conf, section);
599 if (newreq && (pkey == NULL)) {
600 app_RAND_load_conf(req_conf, section);
602 if (!NCONF_get_number(req_conf, section, BITS, &newkey)) {
603 newkey = DEFAULT_KEY_LENGTH;
606 if (keyalg != NULL) {
607 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey,
608 &keyalgstr, gen_eng);
613 if (newkey < MIN_KEY_LENGTH
614 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
615 BIO_printf(bio_err, "private key length is too short,\n");
616 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld\n",
617 MIN_KEY_LENGTH, newkey);
621 if (pkey_type == EVP_PKEY_RSA && newkey > OPENSSL_RSA_MAX_MODULUS_BITS)
623 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
624 " Your key size is %ld! Larger key size may behave not as expected.\n",
625 OPENSSL_RSA_MAX_MODULUS_BITS, newkey);
627 #ifndef OPENSSL_NO_DSA
628 if (pkey_type == EVP_PKEY_DSA && newkey > OPENSSL_DSA_MAX_MODULUS_BITS)
630 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
631 " Your key size is %ld! Larger key size may behave not as expected.\n",
632 OPENSSL_DSA_MAX_MODULUS_BITS, newkey);
635 if (genctx == NULL) {
636 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey,
637 &keyalgstr, gen_eng);
642 if (pkeyopts != NULL) {
644 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
645 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
646 if (pkey_ctrl_string(genctx, genopt) <= 0) {
647 BIO_printf(bio_err, "parameter error \"%s\"\n", genopt);
648 ERR_print_errors(bio_err);
654 if (pkey_type == EVP_PKEY_EC) {
655 BIO_printf(bio_err, "Generating an EC private key\n");
657 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr);
660 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
661 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
663 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
664 BIO_puts(bio_err, "Error generating key\n");
668 EVP_PKEY_CTX_free(genctx);
671 if (keyout == NULL) {
672 keyout = NCONF_get_string(req_conf, section, KEYFILE);
678 BIO_printf(bio_err, "writing new private key to stdout\n");
680 BIO_printf(bio_err, "writing new private key to '%s'\n", keyout);
681 out = bio_open_owner(keyout, outformat, private);
685 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
688 p = NCONF_get_string(req_conf, section, "encrypt_key");
692 if ((p != NULL) && (strcmp(p, "no") == 0))
700 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
701 NULL, 0, NULL, passout)) {
702 if ((ERR_GET_REASON(ERR_peek_error()) ==
703 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
712 BIO_printf(bio_err, "-----\n");
716 req = load_csr(infile, informat, "X509 request");
721 if (newreq || x509) {
723 BIO_printf(bio_err, "you need to specify a private key\n");
728 req = X509_REQ_new();
733 i = make_REQ(req, pkey, subj, multirdn, !x509, chtype);
734 subj = NULL; /* done processing '-subj' option */
736 BIO_printf(bio_err, "problems making Certificate Request\n");
743 if ((x509ss = X509_new_ex(app_get0_libctx(), app_get0_propq())) == NULL)
746 /* Set version to V3 */
747 if (serial != NULL) {
748 if (!X509_set_serialNumber(x509ss, serial))
751 if (!rand_serial(NULL, X509_get_serialNumber(x509ss)))
755 if (!X509_set_issuer_name(x509ss, X509_REQ_get_subject_name(req)))
758 /* set default days if it's not specified */
761 if (!set_cert_times(x509ss, NULL, NULL, days))
763 if (!X509_set_subject_name
764 (x509ss, X509_REQ_get_subject_name(req)))
766 tmppkey = X509_REQ_get0_pubkey(req);
767 if (!tmppkey || !X509_set_pubkey(x509ss, tmppkey))
770 /* Set up V3 context struct */
772 X509V3_set_ctx(&ext_ctx, x509ss, x509ss, NULL, NULL, X509V3_CTX_REPLACE);
773 X509V3_set_nconf(&ext_ctx, req_conf);
776 if (extensions != NULL && !X509V3_EXT_add_nconf(req_conf,
777 &ext_ctx, extensions,
779 BIO_printf(bio_err, "Error adding x509 extensions from section %s\n",
783 if (addext_conf != NULL
784 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
786 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
790 /* If a pre-cert was requested, we need to add a poison extension */
792 if (X509_add1_ext_i2d(x509ss, NID_ct_precert_poison, NULL, 1, 0)
794 BIO_printf(bio_err, "Error adding poison extension\n");
799 i = do_X509_sign(x509ss, pkey, digest, sigopts);
801 ERR_print_errors(bio_err);
807 /* Set up V3 context struct */
809 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
810 X509V3_set_nconf(&ext_ctx, req_conf);
814 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
816 BIO_printf(bio_err, "Error adding request extensions from section %s\n",
820 if (addext_conf != NULL
821 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
823 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
826 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
828 ERR_print_errors(bio_err);
835 BIO_printf(bio_err, "Cannot modify certificate subject\n");
841 BIO_printf(bio_err, "Modifying Request's Subject\n");
842 print_name(bio_err, "old subject=",
843 X509_REQ_get_subject_name(req), get_nameopt());
846 if (build_subject(req, subj, chtype, multirdn) == 0) {
847 BIO_printf(bio_err, "ERROR: cannot modify subject\n");
853 print_name(bio_err, "new subject=",
854 X509_REQ_get_subject_name(req), get_nameopt());
858 if (verify && !x509) {
859 EVP_PKEY *tpubkey = pkey;
861 if (tpubkey == NULL) {
862 tpubkey = X509_REQ_get0_pubkey(req);
867 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
872 BIO_printf(bio_err, "verify failure\n");
873 ERR_print_errors(bio_err);
874 } else { /* if (i > 0) */
875 BIO_printf(bio_err, "verify OK\n");
879 if (noout && !text && !modulus && !subject && !pubkey) {
884 out = bio_open_default(outfile,
885 keyout != NULL && outfile != NULL &&
886 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
892 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
894 if (tpubkey == NULL) {
895 BIO_printf(bio_err, "Error getting public key\n");
896 ERR_print_errors(bio_err);
899 PEM_write_bio_PUBKEY(out, tpubkey);
904 ret = X509_print_ex(out, x509ss, get_nameopt(), reqflag);
906 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
910 BIO_printf(bio_err, "Error printing certificate\n");
912 BIO_printf(bio_err, "Error printing certificate request\n");
914 ERR_print_errors(bio_err);
921 print_name(out, "subject=", X509_get_subject_name(x509ss),
924 print_name(out, "subject=", X509_REQ_get_subject_name(req),
932 tpubkey = X509_get0_pubkey(x509ss);
934 tpubkey = X509_REQ_get0_pubkey(req);
935 if (tpubkey == NULL) {
936 fprintf(stdout, "Modulus=unavailable\n");
939 fprintf(stdout, "Modulus=");
940 #ifndef OPENSSL_NO_RSA
941 if (EVP_PKEY_is_a(tpubkey, "RSA")) {
944 /* Every RSA key has an 'n' */
945 EVP_PKEY_get_bn_param(pkey, "n", &n);
950 fprintf(stdout, "Wrong Algorithm type");
951 fprintf(stdout, "\n");
954 if (!noout && !x509) {
955 if (outformat == FORMAT_ASN1)
956 i = i2d_X509_REQ_bio(out, req);
958 i = PEM_write_bio_X509_REQ_NEW(out, req);
960 i = PEM_write_bio_X509_REQ(out, req);
962 BIO_printf(bio_err, "unable to write X509 request\n");
966 if (!noout && x509 && (x509ss != NULL)) {
967 if (outformat == FORMAT_ASN1)
968 i = i2d_X509_bio(out, x509ss);
970 i = PEM_write_bio_X509(out, x509ss);
972 BIO_printf(bio_err, "unable to write X509 certificate\n");
979 ERR_print_errors(bio_err);
981 NCONF_free(req_conf);
982 NCONF_free(addext_conf);
983 BIO_free(addext_bio);
986 EVP_PKEY_CTX_free(genctx);
987 sk_OPENSSL_STRING_free(pkeyopts);
988 sk_OPENSSL_STRING_free(sigopts);
989 sk_OPENSSL_STRING_free(vfyopts);
990 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
991 lh_OPENSSL_STRING_free(addexts);
992 #ifndef OPENSSL_NO_ENGINE
993 release_engine(gen_eng);
995 OPENSSL_free(keyalgstr);
998 ASN1_INTEGER_free(serial);
1000 if (passin != nofree_passin)
1001 OPENSSL_free(passin);
1002 if (passout != nofree_passout)
1003 OPENSSL_free(passout);
1007 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, char *subj, int multirdn,
1008 int attribs, unsigned long chtype)
1012 STACK_OF(CONF_VALUE) *dn_sk, *attr_sk = NULL;
1013 char *tmp, *dn_sect, *attr_sect;
1015 tmp = NCONF_get_string(req_conf, section, PROMPT);
1018 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1021 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1022 if (dn_sect == NULL) {
1023 BIO_printf(bio_err, "unable to find '%s' in config\n",
1024 DISTINGUISHED_NAME);
1027 dn_sk = NCONF_get_section(req_conf, dn_sect);
1028 if (dn_sk == NULL) {
1029 BIO_printf(bio_err, "unable to get '%s' section\n", dn_sect);
1033 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1034 if (attr_sect == NULL) {
1038 attr_sk = NCONF_get_section(req_conf, attr_sect);
1039 if (attr_sk == NULL) {
1040 BIO_printf(bio_err, "unable to get '%s' section\n", attr_sect);
1045 /* setup version number */
1046 if (!X509_REQ_set_version(req, 0L))
1047 goto err; /* version 1 */
1050 i = build_subject(req, subj, chtype, multirdn);
1052 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1054 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1059 if (!X509_REQ_set_pubkey(req, pkey))
1068 * subject is expected to be in the format /type0=value0/type1=value1/type2=...
1069 * where characters may be escaped by \
1071 static int build_subject(X509_REQ *req, const char *subject, unsigned long chtype,
1076 if ((n = parse_name(subject, chtype, multirdn, "subject")) == NULL)
1079 if (!X509_REQ_set_subject_name(req, n)) {
1087 static int prompt_info(X509_REQ *req,
1088 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1089 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1090 int attribs, unsigned long chtype)
1100 X509_NAME *subj = X509_REQ_get_subject_name(req);
1104 "You are about to be asked to enter information that will be incorporated\n");
1105 BIO_printf(bio_err, "into your certificate request.\n");
1107 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1109 "There are quite a few fields but you can leave some blank\n");
1111 "For some fields there will be a default value,\n");
1113 "If you enter '.', the field will be left blank.\n");
1114 BIO_printf(bio_err, "-----\n");
1117 if (sk_CONF_VALUE_num(dn_sk)) {
1122 if (sk_CONF_VALUE_num(dn_sk) <= i)
1125 v = sk_CONF_VALUE_value(dn_sk, i);
1128 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1129 !check_end(type, "_default") || !check_end(type, "_value"))
1132 * Skip past any leading X. X: X, etc to allow for multiple
1135 for (p = v->name; *p; p++)
1136 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1148 /* If OBJ not recognised ignore it */
1149 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1151 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1153 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1158 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1160 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1165 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1167 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1173 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1175 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1180 if (!add_DN_object(subj, v->value, def, value, nid,
1181 n_min, n_max, chtype, mval))
1184 if (X509_NAME_entry_count(subj) == 0) {
1185 BIO_printf(bio_err, "error, no objects specified in config file\n");
1190 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1193 "\nPlease enter the following 'extra' attributes\n");
1195 "to be sent with your certificate request\n");
1202 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1205 v = sk_CONF_VALUE_value(attr_sk, i);
1207 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1210 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1212 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1218 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1220 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1226 if (!join(buf, sizeof(buf), type,"_min", "Name"))
1228 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1233 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1235 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1240 if (!add_attribute_object(req,
1241 v->value, def, value, nid, n_min,
1247 BIO_printf(bio_err, "No template, please set one up.\n");
1255 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1256 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1257 unsigned long chtype)
1259 int i, spec_char, plus_char;
1265 subj = X509_REQ_get_subject_name(req);
1267 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1269 v = sk_CONF_VALUE_value(dn_sk, i);
1273 * Skip past any leading X. X: X, etc to allow for multiple instances
1275 for (p = v->name; *p; p++) {
1276 #ifndef CHARSET_EBCDIC
1277 spec_char = ((*p == ':') || (*p == ',') || (*p == '.'));
1279 spec_char = ((*p == os_toascii[':']) || (*p == os_toascii[','])
1280 || (*p == os_toascii['.']));
1289 #ifndef CHARSET_EBCDIC
1290 plus_char = (*type == '+');
1292 plus_char = (*type == os_toascii['+']);
1300 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1301 (unsigned char *)v->value, -1, -1,
1307 if (!X509_NAME_entry_count(subj)) {
1308 BIO_printf(bio_err, "error, no objects specified in config file\n");
1312 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1313 v = sk_CONF_VALUE_value(attr_sk, i);
1314 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1315 (unsigned char *)v->value, -1))
1322 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1323 char *value, int nid, int n_min, int n_max,
1324 unsigned long chtype, int mval)
1329 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1330 "DN value", "DN default");
1331 if ((ret == 0) || (ret == 1))
1335 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1336 (unsigned char *)buf, -1, -1, mval))
1342 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1343 char *value, int nid, int n_min,
1344 int n_max, unsigned long chtype)
1349 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1350 "Attribute value", "Attribute default");
1351 if ((ret == 0) || (ret == 1))
1355 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1356 (unsigned char *)buf, -1)) {
1357 BIO_printf(bio_err, "Error adding attribute\n");
1358 ERR_print_errors(bio_err);
1366 static int build_data(char *text, const char *def,
1367 char *value, int n_min, int n_max,
1368 char *buf, const int buf_size,
1369 const char *desc1, const char *desc2
1375 BIO_printf(bio_err, "%s [%s]:", text, def);
1376 (void)BIO_flush(bio_err);
1377 if (value != NULL) {
1378 if (!join(buf, buf_size, value, "\n", desc1))
1380 BIO_printf(bio_err, "%s\n", value);
1384 if (!fgets(buf, buf_size, stdin))
1394 if (buf[0] == '\n') {
1395 if ((def == NULL) || (def[0] == '\0'))
1397 if (!join(buf, buf_size, def, "\n", desc2))
1399 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1404 if (buf[i - 1] != '\n') {
1405 BIO_printf(bio_err, "weird input :-(\n");
1409 #ifdef CHARSET_EBCDIC
1410 ebcdic2ascii(buf, buf, i);
1412 if (!req_check_len(i, n_min, n_max)) {
1420 static int req_check_len(int len, int n_min, int n_max)
1422 if ((n_min > 0) && (len < n_min)) {
1424 "string is too short, it needs to be at least %d bytes long\n",
1428 if ((n_max >= 0) && (len > n_max)) {
1430 "string is too long, it needs to be no more than %d bytes long\n",
1437 /* Check if the end of a string matches 'end' */
1438 static int check_end(const char *str, const char *end)
1447 tmp = str + slen - elen;
1448 return strcmp(tmp, end);
1452 * Merge the two strings together into the result buffer checking for
1453 * overflow and producing an error message if there is.
1455 static int join(char buf[], size_t buf_size, const char *name,
1456 const char *tail, const char *desc)
1458 const size_t name_len = strlen(name), tail_len = strlen(tail);
1460 if (name_len + tail_len + 1 > buf_size) {
1461 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1464 memcpy(buf, name, name_len);
1465 memcpy(buf + name_len, tail, tail_len + 1);
1469 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1470 int *pkey_type, long *pkeylen,
1471 char **palgnam, ENGINE *keygen_engine)
1473 EVP_PKEY_CTX *gctx = NULL;
1474 EVP_PKEY *param = NULL;
1477 const char *paramfile = NULL;
1480 *pkey_type = EVP_PKEY_RSA;
1482 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1483 *pkey_type = EVP_PKEY_RSA;
1484 keylen = atol(gstr);
1486 } else if (strncmp(gstr, "param:", 6) == 0) {
1487 paramfile = gstr + 6;
1489 const char *p = strchr(gstr, ':');
1492 const EVP_PKEY_ASN1_METHOD *ameth;
1499 * The lookup of a the string will cover all engines so keep a note
1500 * of the implementation.
1503 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1505 if (ameth == NULL) {
1506 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1510 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1511 #ifndef OPENSSL_NO_ENGINE
1512 finish_engine(tmpeng);
1514 if (*pkey_type == EVP_PKEY_RSA) {
1516 keylen = atol(p + 1);
1521 } else if (p != NULL) {
1526 if (paramfile != NULL) {
1527 pbio = BIO_new_file(paramfile, "r");
1529 BIO_printf(bio_err, "Can't open parameter file %s\n", paramfile);
1532 param = PEM_read_bio_Parameters(pbio, NULL);
1534 if (param == NULL) {
1537 (void)BIO_reset(pbio);
1538 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1540 param = X509_get_pubkey(x);
1547 if (param == NULL) {
1548 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1551 if (*pkey_type == -1) {
1552 *pkey_type = EVP_PKEY_id(param);
1553 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1554 BIO_printf(bio_err, "Key Type does not match parameters\n");
1555 EVP_PKEY_free(param);
1560 if (palgnam != NULL) {
1561 const EVP_PKEY_ASN1_METHOD *ameth;
1565 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1566 if (ameth == NULL) {
1567 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1570 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1571 *palgnam = OPENSSL_strdup(anam);
1572 #ifndef OPENSSL_NO_ENGINE
1573 finish_engine(tmpeng);
1577 if (param != NULL) {
1578 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1579 *pkeylen = EVP_PKEY_bits(param);
1580 EVP_PKEY_free(param);
1582 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1586 BIO_puts(bio_err, "Error allocating keygen context\n");
1587 ERR_print_errors(bio_err);
1591 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1592 BIO_puts(bio_err, "Error initializing keygen context\n");
1593 ERR_print_errors(bio_err);
1594 EVP_PKEY_CTX_free(gctx);
1597 #ifndef OPENSSL_NO_RSA
1598 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1599 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1600 BIO_puts(bio_err, "Error setting RSA keysize\n");
1601 ERR_print_errors(bio_err);
1602 EVP_PKEY_CTX_free(gctx);
1611 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1614 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1616 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1625 BIO_write(b, &c, 1);