2 * Copyright 1995-2021 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/core_names.h>
18 #include <openssl/bio.h>
19 #include <openssl/evp.h>
20 #include <openssl/conf.h>
21 #include <openssl/err.h>
22 #include <openssl/asn1.h>
23 #include <openssl/x509.h>
24 #include <openssl/x509v3.h>
25 #include <openssl/objects.h>
26 #include <openssl/pem.h>
27 #include <openssl/bn.h>
28 #include <openssl/lhash.h>
29 #include <openssl/rsa.h>
30 #ifndef OPENSSL_NO_DSA
31 # 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
46 #define DEFAULT_DAYS 30 /* default cert validity period in days */
47 #define UNSET_DAYS -2 /* -1 may be used for testing expiration checks */
48 #define EXT_COPY_UNSET -1
50 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
51 int mutlirdn, int attribs, 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, char *value,
67 int n_min, int n_max, char *buf, const int buf_size,
68 const char *desc1, const char *desc2);
69 static int req_check_len(int len, int n_min, int n_max);
70 static int check_end(const char *str, const char *end);
71 static int join(char buf[], size_t buf_size, const char *name,
72 const char *tail, const char *desc);
73 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
74 char **pkeytype, long *pkeylen,
75 ENGINE *keygen_engine);
77 static const char *section = "req";
78 static CONF *req_conf = NULL;
79 static CONF *addext_conf = NULL;
82 typedef enum OPTION_choice {
84 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
85 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
86 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
87 OPT_PKEYOPT, OPT_SIGOPT, OPT_VFYOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
88 OPT_VERIFY, OPT_NOENC, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
89 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
91 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL,
92 OPT_COPY_EXTENSIONS, 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, '<', "X.509 request input file"},
107 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
108 {"verify", OPT_VERIFY, '-', "Verify self-signature on the request"},
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 {"CA", OPT_CA, '<', "Issuer certificate to use with -x509"},
121 {"CAkey", OPT_CAKEY, 's',
122 "Issuer private key to use with -x509; default is -CA arg"},
123 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
124 {"subj", OPT_SUBJ, 's', "Set or modify subject of request or cert"},
125 {"subject", OPT_SUBJECT, '-',
126 "Print the subject of the output request or cert"},
127 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
128 "Deprecated; multi-valued RDNs support is always on."},
129 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
130 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
131 {"copy_extensions", OPT_COPY_EXTENSIONS, 's',
132 "copy extensions from request when using -x509"},
133 {"addext", OPT_ADDEXT, 's',
134 "Additional cert extension key=value pair (may be given more than once)"},
135 {"extensions", OPT_EXTENSIONS, 's',
136 "Cert extension section (override value in config file)"},
137 {"reqexts", OPT_REQEXTS, 's',
138 "Request extension section (override value in config file)"},
139 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
141 OPT_SECTION("Keys and Signing"),
142 {"key", OPT_KEY, 's', "Private key to use"},
143 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
144 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
145 {"keyout", OPT_KEYOUT, '>', "File to save newly created private key"},
146 {"passin", OPT_PASSIN, 's', "Private key and certificate password source"},
147 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
148 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
149 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
150 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
151 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
152 {"", OPT_MD, '-', "Any supported digest"},
154 OPT_SECTION("Output"),
155 {"out", OPT_OUT, '>', "Output file"},
156 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
157 {"batch", OPT_BATCH, '-',
158 "Do not ask anything during request generation"},
159 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
160 {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
161 {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
162 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
163 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
164 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
172 * An LHASH of strings, where each string is an extension name.
174 static unsigned long ext_name_hash(const OPENSSL_STRING *a)
176 return OPENSSL_LH_strhash((const char *)a);
179 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
181 return strcmp((const char *)a, (const char *)b);
184 static void exts_cleanup(OPENSSL_STRING *x)
186 OPENSSL_free((char *)x);
190 * Is the |kv| key already duplicated? This is remarkably tricky to get right.
191 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error.
193 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
199 /* Skip leading whitespace, make a copy. */
200 while (*kv && isspace(*kv))
203 if ((p = strchr(kv, '=')) == NULL)
206 if ((kv = OPENSSL_strdup(kv)) == NULL)
209 /* Skip trailing space before the equal sign. */
210 for (p = kv + off; p > kv; --p)
219 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
220 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING *)kv);
224 } else if (lh_OPENSSL_STRING_error(addexts)) {
232 int req_main(int argc, char **argv)
234 ASN1_INTEGER *serial = NULL;
236 ENGINE *e = NULL, *gen_eng = NULL;
237 EVP_PKEY *pkey = NULL, *CAkey = NULL;
238 EVP_PKEY_CTX *genctx = NULL;
239 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
240 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
241 X509 *new_x509 = NULL, *CAcert = NULL;
242 X509_REQ *req = NULL;
243 EVP_CIPHER *cipher = NULL;
244 int ext_copy = EXT_COPY_UNSET;
245 BIO *addext_bio = NULL;
246 char *extensions = NULL;
247 const char *infile = NULL, *CAfile = NULL, *CAkeyfile = NULL;
248 char *outfile = NULL, *keyfile = NULL, *digest = NULL;
249 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
250 char *passin = NULL, *passout = NULL;
251 char *nofree_passin = NULL, *nofree_passout = NULL;
252 char *req_exts = NULL, *subj = NULL;
253 X509_NAME *fsubj = NULL;
254 char *template = default_config_file, *keyout = NULL;
255 const char *keyalg = NULL;
257 int days = UNSET_DAYS;
258 int ret = 1, gen_x509 = 0, i = 0, newreq = 0, verbose = 0;
259 int informat = FORMAT_UNDEF, outformat = FORMAT_PEM, keyform = FORMAT_UNDEF;
260 int modulus = 0, multirdn = 1, verify = 0, noout = 0, text = 0;
261 int noenc = 0, newhdr = 0, subject = 0, pubkey = 0, precert = 0;
262 long newkey_len = -1;
263 unsigned long chtype = MBSTRING_ASC, reqflag = 0;
265 #ifndef OPENSSL_NO_DES
266 cipher = (EVP_CIPHER *)EVP_des_ede3_cbc();
269 prog = opt_init(argc, argv, req_options);
270 while ((o = opt_next()) != OPT_EOF) {
275 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
278 opt_help(req_options);
282 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
286 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &outformat))
290 e = setup_engine(opt_arg(), 0);
292 case OPT_KEYGEN_ENGINE:
293 #ifndef OPENSSL_NO_ENGINE
294 gen_eng = setup_engine(opt_arg(), 0);
295 if (gen_eng == NULL) {
296 BIO_printf(bio_err, "Can't find keygen engine %s\n", *argv);
311 template = opt_arg();
317 if (!opt_format(opt_arg(), OPT_FMT_ANY, &keyform))
330 passargin = opt_arg();
333 passargout = opt_arg();
340 if (!opt_provider(o))
348 if (pkeyopts == NULL)
349 pkeyopts = sk_OPENSSL_STRING_new_null();
351 || !sk_OPENSSL_STRING_push(pkeyopts, opt_arg()))
356 sigopts = sk_OPENSSL_STRING_new_null();
357 if (!sigopts || !sk_OPENSSL_STRING_push(sigopts, opt_arg()))
362 vfyopts = sk_OPENSSL_STRING_new_null();
363 if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
389 chtype = MBSTRING_UTF8;
392 if (!set_nameopt(opt_arg()))
396 if (!set_cert_ex(&reqflag, opt_arg()))
409 CAkeyfile = opt_arg();
412 days = atoi(opt_arg());
414 BIO_printf(bio_err, "%s: -days parameter arg must be >= -1\n",
420 if (serial != NULL) {
421 BIO_printf(bio_err, "Serial number supplied twice\n");
424 serial = s2i_ASN1_INTEGER(NULL, opt_arg());
434 case OPT_MULTIVALUE_RDN:
437 case OPT_COPY_EXTENSIONS:
438 if (!set_ext_copy(&ext_copy, opt_arg())) {
439 BIO_printf(bio_err, "Invalid extension copy option: \"%s\"\n",
446 if (addexts == NULL) {
447 addexts = lh_OPENSSL_STRING_new(ext_name_hash, ext_name_cmp);
448 addext_bio = BIO_new(BIO_s_mem());
449 if (addexts == NULL || addext_bio == NULL)
452 i = duplicated(addexts, p);
454 BIO_printf(bio_err, "Duplicate extension: %s\n", p);
457 if (i < 0 || BIO_printf(addext_bio, "%s\n", p) < 0)
461 extensions = opt_arg();
464 req_exts = opt_arg();
467 newreq = precert = 1;
470 digest = opt_unknown();
475 /* No extra arguments. */
476 argc = opt_num_rest();
480 if (!app_RAND_load())
484 if (days != UNSET_DAYS)
485 BIO_printf(bio_err, "Ignoring -days without -x509; not generating a certificate\n");
486 if (ext_copy == EXT_COPY_NONE)
487 BIO_printf(bio_err, "Ignoring -copy_extensions 'none' when -x509 is not given\n");
489 if (gen_x509 && infile == NULL)
492 if (!app_passwd(passargin, passargout, &passin, &passout)) {
493 BIO_printf(bio_err, "Error getting passwords\n");
497 if ((req_conf = app_load_config_verbose(template, verbose)) == NULL)
499 if (addext_bio != NULL) {
502 "Using additional configuration from -addext options\n");
503 if ((addext_conf = app_load_config_bio(addext_bio, NULL)) == NULL)
506 if (template != default_config_file && !app_load_modules(req_conf))
509 if (req_conf != NULL) {
510 p = NCONF_get_string(req_conf, NULL, "oid_file");
516 oid_bio = BIO_new_file(p, "r");
517 if (oid_bio == NULL) {
520 "Problems opening '%s' for extra OIDs\n", p);
521 ERR_print_errors(bio_err);
524 OBJ_create_objects(oid_bio);
529 if (!add_oid_section(req_conf))
532 if (digest == NULL) {
533 p = NCONF_get_string(req_conf, section, "default_md");
540 if (extensions == NULL) {
541 extensions = NCONF_get_string(req_conf, section, V3_EXTENSIONS);
542 if (extensions == NULL)
545 if (extensions != NULL) {
546 /* Check syntax of file */
549 X509V3_set_ctx_test(&ctx);
550 X509V3_set_nconf(&ctx, req_conf);
551 if (!X509V3_EXT_add_nconf(req_conf, &ctx, extensions, NULL)) {
553 "Error checking x509 extension section %s\n",
558 if (addext_conf != NULL) {
559 /* Check syntax of command line extensions */
562 X509V3_set_ctx_test(&ctx);
563 X509V3_set_nconf(&ctx, addext_conf);
564 if (!X509V3_EXT_add_nconf(addext_conf, &ctx, "default", NULL)) {
565 BIO_printf(bio_err, "Error checking extensions defined using -addext\n");
570 if (passin == NULL) {
571 passin = nofree_passin =
572 NCONF_get_string(req_conf, section, "input_password");
577 if (passout == NULL) {
578 passout = nofree_passout =
579 NCONF_get_string(req_conf, section, "output_password");
584 p = NCONF_get_string(req_conf, section, STRING_MASK);
588 if (p != NULL && !ASN1_STRING_set_default_mask_asc(p)) {
589 BIO_printf(bio_err, "Invalid global string mask setting %s\n", p);
593 if (chtype != MBSTRING_UTF8) {
594 p = NCONF_get_string(req_conf, section, UTF8_IN);
597 else if (strcmp(p, "yes") == 0)
598 chtype = MBSTRING_UTF8;
601 if (req_exts == NULL) {
602 req_exts = NCONF_get_string(req_conf, section, REQ_EXTENSIONS);
603 if (req_exts == NULL)
606 if (req_exts != NULL) {
607 /* Check syntax of file */
610 X509V3_set_ctx_test(&ctx);
611 X509V3_set_nconf(&ctx, req_conf);
612 if (!X509V3_EXT_add_nconf(req_conf, &ctx, req_exts, NULL)) {
614 "Error checking request extension section %s\n",
620 if (keyfile != NULL) {
621 pkey = load_key(keyfile, keyform, 0, passin, e, "private key");
624 app_RAND_load_conf(req_conf, section);
627 if (newreq && pkey == NULL) {
628 app_RAND_load_conf(req_conf, section);
630 if (!NCONF_get_number(req_conf, section, BITS, &newkey_len)) {
631 newkey_len = DEFAULT_KEY_LENGTH;
634 genctx = set_keygen_ctx(keyalg, &keyalgstr, &newkey_len, gen_eng);
638 if (newkey_len < MIN_KEY_LENGTH
639 && (EVP_PKEY_CTX_is_a(genctx, "RSA")
640 || EVP_PKEY_CTX_is_a(genctx, "RSA-PSS")
641 || EVP_PKEY_CTX_is_a(genctx, "DSA"))) {
642 BIO_printf(bio_err, "Private key length is too short,\n");
643 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld.\n",
644 MIN_KEY_LENGTH, newkey_len);
648 if (newkey_len > OPENSSL_RSA_MAX_MODULUS_BITS
649 && (EVP_PKEY_CTX_is_a(genctx, "RSA")
650 || EVP_PKEY_CTX_is_a(genctx, "RSA-PSS")))
652 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
653 " Your key size is %ld! Larger key size may behave not as expected.\n",
654 OPENSSL_RSA_MAX_MODULUS_BITS, newkey_len);
656 #ifndef OPENSSL_NO_DSA
657 if (EVP_PKEY_CTX_is_a(genctx, "DSA")
658 && newkey_len > OPENSSL_DSA_MAX_MODULUS_BITS)
660 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
661 " Your key size is %ld! Larger key size may behave not as expected.\n",
662 OPENSSL_DSA_MAX_MODULUS_BITS, newkey_len);
665 if (pkeyopts != NULL) {
667 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
668 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
669 if (pkey_ctrl_string(genctx, genopt) <= 0) {
670 BIO_printf(bio_err, "Key parameter error \"%s\"\n", genopt);
676 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr);
678 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
679 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
681 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
682 BIO_puts(bio_err, "Error generating key\n");
686 EVP_PKEY_CTX_free(genctx);
689 if (keyout == NULL) {
690 keyout = NCONF_get_string(req_conf, section, KEYFILE);
696 BIO_printf(bio_err, "Writing new private key to stdout\n");
698 BIO_printf(bio_err, "Writing new private key to '%s'\n", keyout);
699 out = bio_open_owner(keyout, outformat, newreq);
703 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
706 p = NCONF_get_string(req_conf, section, "encrypt_key");
710 if ((p != NULL) && (strcmp(p, "no") == 0))
718 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
719 NULL, 0, NULL, passout)) {
720 if ((ERR_GET_REASON(ERR_peek_error()) ==
721 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
730 BIO_printf(bio_err, "-----\n");
734 * subj is expected to be in the format /type0=value0/type1=value1/type2=...
735 * where characters may be escaped by \
738 && (fsubj = parse_name(subj, chtype, multirdn, "subject")) == NULL)
742 req = load_csr(infile, informat, "X509 request");
747 if (CAkeyfile == NULL)
749 if (CAkeyfile != NULL) {
750 if (CAfile == NULL) {
752 "Ignoring -CAkey option since no -CA option is given\n");
754 if ((CAkey = load_key(CAkeyfile, FORMAT_UNDEF,
755 0, passin, e, "issuer private key")) == NULL)
759 if (CAfile != NULL) {
762 "Warning: Ignoring -CA option without -x509\n");
764 if (CAkeyfile == NULL) {
766 "Need to give the -CAkey option if using -CA\n");
769 if ((CAcert = load_cert_pass(CAfile, FORMAT_UNDEF, 1, passin,
770 "issuer certificate")) == NULL)
772 if (!X509_check_private_key(CAcert, CAkey)) {
774 "Issuer certificate and key do not match\n");
779 if (newreq || gen_x509) {
780 if (pkey == NULL /* can happen only if !newreq */) {
781 BIO_printf(bio_err, "Must provide a signature key using -key\n");
786 req = X509_REQ_new_ex(app_get0_libctx(), app_get0_propq());
791 if (!make_REQ(req, pkey, fsubj, multirdn, !gen_x509, chtype)){
792 BIO_printf(bio_err, "Error making certificate request\n");
797 EVP_PKEY *pub_key = X509_REQ_get0_pubkey(req);
799 X509_NAME *issuer = CAcert != NULL ? X509_get_subject_name(CAcert) :
800 X509_REQ_get_subject_name(req);
801 X509_NAME *n_subj = fsubj != NULL ? fsubj :
802 X509_REQ_get_subject_name(req);
804 if ((new_x509 = X509_new_ex(app_get0_libctx(),
805 app_get0_propq())) == NULL)
808 if (serial != NULL) {
809 if (!X509_set_serialNumber(new_x509, serial))
812 if (!rand_serial(NULL, X509_get_serialNumber(new_x509)))
816 if (!X509_set_issuer_name(new_x509, issuer))
818 if (days == UNSET_DAYS) {
821 if (!set_cert_times(new_x509, NULL, NULL, days))
823 if (!X509_set_subject_name(new_x509, n_subj))
825 if (!pub_key || !X509_set_pubkey(new_x509, pub_key))
827 if (ext_copy == EXT_COPY_UNSET) {
828 BIO_printf(bio_err, "Warning: No -copy_extensions given; ignoring any extensions in the request\n");
829 } else if (!copy_extensions(new_x509, req, ext_copy)) {
830 BIO_printf(bio_err, "Error copying extensions from request\n");
834 /* Set up V3 context struct */
835 X509V3_set_ctx(&ext_ctx, CAcert != NULL ? CAcert : new_x509,
836 new_x509, NULL, NULL, X509V3_CTX_REPLACE);
837 if (CAcert == NULL) { /* self-issued, possibly self-signed */
838 if (!X509V3_set_issuer_pkey(&ext_ctx, pkey)) /* prepare right AKID */
841 if (!X509_check_private_key(new_x509, pkey))
843 "Warning: Signature key and public key of cert do not match\n");
846 X509V3_set_nconf(&ext_ctx, req_conf);
849 if (extensions != NULL
850 && !X509V3_EXT_add_nconf(req_conf, &ext_ctx, extensions,
852 BIO_printf(bio_err, "Error adding x509 extensions from section %s\n",
856 if (addext_conf != NULL
857 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
859 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
863 /* If a pre-cert was requested, we need to add a poison extension */
865 if (X509_add1_ext_i2d(new_x509, NID_ct_precert_poison,
867 BIO_printf(bio_err, "Error adding poison extension\n");
872 i = do_X509_sign(new_x509, CAcert != NULL ? CAkey : pkey,
873 digest, sigopts, &ext_ctx);
879 /* Set up V3 context struct */
880 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
881 X509V3_set_nconf(&ext_ctx, req_conf);
885 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
887 BIO_printf(bio_err, "Error adding request extensions from section %s\n",
891 if (addext_conf != NULL
892 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
894 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
897 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
903 if (subj != NULL && !newreq && !gen_x509) {
905 BIO_printf(out, "Modifying subject of certificate request\n");
906 print_name(out, "Old subject=", X509_REQ_get_subject_name(req));
909 if (!X509_REQ_set_subject_name(req, fsubj)) {
910 BIO_printf(bio_err, "Error modifying subject of certificate request\n");
915 print_name(out, "New subject=", X509_REQ_get_subject_name(req));
920 EVP_PKEY *tpubkey = pkey;
922 if (tpubkey == NULL) {
923 tpubkey = X509_REQ_get0_pubkey(req);
928 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
933 BIO_printf(bio_err, "Certificate request self-signature verify failure\n");
934 ERR_print_errors(bio_err);
936 BIO_printf(bio_err, "Certificate request self-signature verify OK\n");
940 if (noout && !text && !modulus && !subject && !pubkey) {
945 out = bio_open_default(outfile,
946 keyout != NULL && outfile != NULL &&
947 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
953 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
955 if (tpubkey == NULL) {
956 BIO_printf(bio_err, "Error getting public key\n");
959 PEM_write_bio_PUBKEY(out, tpubkey);
964 ret = X509_print_ex(out, new_x509, get_nameopt(), reqflag);
966 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
970 BIO_printf(bio_err, "Error printing certificate\n");
972 BIO_printf(bio_err, "Error printing certificate request\n");
978 print_name(out, "subject=", gen_x509
979 ? X509_get_subject_name(new_x509)
980 : X509_REQ_get_subject_name(req));
987 tpubkey = X509_get0_pubkey(new_x509);
989 tpubkey = X509_REQ_get0_pubkey(req);
990 if (tpubkey == NULL) {
991 fprintf(stdout, "Modulus is unavailable\n");
994 fprintf(stdout, "Modulus=");
995 if (EVP_PKEY_is_a(tpubkey, "RSA")) {
998 /* Every RSA key has an 'n' */
999 EVP_PKEY_get_bn_param(pkey, "n", &n);
1003 fprintf(stdout, "Wrong Algorithm type");
1005 fprintf(stdout, "\n");
1008 if (!noout && !gen_x509) {
1009 if (outformat == FORMAT_ASN1)
1010 i = i2d_X509_REQ_bio(out, req);
1012 i = PEM_write_bio_X509_REQ_NEW(out, req);
1014 i = PEM_write_bio_X509_REQ(out, req);
1016 BIO_printf(bio_err, "Unable to write certificate request\n");
1020 if (!noout && gen_x509 && new_x509 != NULL) {
1021 if (outformat == FORMAT_ASN1)
1022 i = i2d_X509_bio(out, new_x509);
1024 i = PEM_write_bio_X509(out, new_x509);
1026 BIO_printf(bio_err, "Unable to write X509 certificate\n");
1033 ERR_print_errors(bio_err);
1035 NCONF_free(req_conf);
1036 NCONF_free(addext_conf);
1037 BIO_free(addext_bio);
1039 EVP_PKEY_free(pkey);
1040 EVP_PKEY_CTX_free(genctx);
1041 sk_OPENSSL_STRING_free(pkeyopts);
1042 sk_OPENSSL_STRING_free(sigopts);
1043 sk_OPENSSL_STRING_free(vfyopts);
1044 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
1045 lh_OPENSSL_STRING_free(addexts);
1046 #ifndef OPENSSL_NO_ENGINE
1047 release_engine(gen_eng);
1049 OPENSSL_free(keyalgstr);
1051 X509_NAME_free(fsubj);
1052 X509_free(new_x509);
1054 EVP_PKEY_free(CAkey);
1055 ASN1_INTEGER_free(serial);
1057 if (passin != nofree_passin)
1058 OPENSSL_free(passin);
1059 if (passout != nofree_passout)
1060 OPENSSL_free(passout);
1064 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
1065 int multirdn, int attribs, unsigned long chtype)
1069 STACK_OF(CONF_VALUE) *dn_sk = NULL, *attr_sk = NULL;
1070 char *tmp, *dn_sect, *attr_sect;
1072 tmp = NCONF_get_string(req_conf, section, PROMPT);
1075 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1078 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1079 if (dn_sect == NULL) {
1082 dn_sk = NCONF_get_section(req_conf, dn_sect);
1083 if (dn_sk == NULL) {
1084 BIO_printf(bio_err, "Unable to get '%s' section\n", dn_sect);
1089 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1090 if (attr_sect == NULL) {
1093 attr_sk = NCONF_get_section(req_conf, attr_sect);
1094 if (attr_sk == NULL) {
1095 BIO_printf(bio_err, "Unable to get '%s' section\n", attr_sect);
1100 /* so far there is only version 1 */
1101 if (!X509_REQ_set_version(req, X509_REQ_VERSION_1))
1105 i = X509_REQ_set_subject_name(req, fsubj);
1107 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1109 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1114 if (!X509_REQ_set_pubkey(req, pkey))
1122 static int prompt_info(X509_REQ *req,
1123 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1124 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1125 int attribs, unsigned long chtype)
1135 X509_NAME *subj = X509_REQ_get_subject_name(req);
1139 "You are about to be asked to enter information that will be incorporated\n");
1140 BIO_printf(bio_err, "into your certificate request.\n");
1142 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1144 "There are quite a few fields but you can leave some blank\n");
1146 "For some fields there will be a default value,\n");
1148 "If you enter '.', the field will be left blank.\n");
1149 BIO_printf(bio_err, "-----\n");
1152 if (sk_CONF_VALUE_num(dn_sk)) {
1157 if (sk_CONF_VALUE_num(dn_sk) <= i)
1160 v = sk_CONF_VALUE_value(dn_sk, i);
1163 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1164 !check_end(type, "_default") || !check_end(type, "_value"))
1167 * Skip past any leading X. X: X, etc to allow for multiple
1170 for (p = v->name; *p; p++)
1171 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1183 /* If OBJ not recognised ignore it */
1184 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1186 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1188 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1193 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1195 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1200 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1202 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1207 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1209 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1214 if (!add_DN_object(subj, v->value, def, value, nid,
1215 n_min, n_max, chtype, mval))
1218 if (X509_NAME_entry_count(subj) == 0) {
1219 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1224 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1227 "\nPlease enter the following 'extra' attributes\n");
1229 "to be sent with your certificate request\n");
1236 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1239 v = sk_CONF_VALUE_value(attr_sk, i);
1241 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1244 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1246 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1252 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1254 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1260 if (!join(buf, sizeof(buf), type, "_min", "Name"))
1262 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1267 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1269 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1274 if (!add_attribute_object(req,
1275 v->value, def, value, nid, n_min,
1281 BIO_printf(bio_err, "No template, please set one up.\n");
1289 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1290 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1291 unsigned long chtype)
1293 int i, spec_char, plus_char;
1299 subj = X509_REQ_get_subject_name(req);
1301 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1303 v = sk_CONF_VALUE_value(dn_sk, i);
1307 * Skip past any leading X. X: X, etc to allow for multiple instances
1309 for (p = v->name; *p; p++) {
1310 #ifndef CHARSET_EBCDIC
1311 spec_char = (*p == ':' || *p == ',' || *p == '.');
1313 spec_char = (*p == os_toascii[':'] || *p == os_toascii[',']
1314 || *p == os_toascii['.']);
1323 #ifndef CHARSET_EBCDIC
1324 plus_char = (*type == '+');
1326 plus_char = (*type == os_toascii['+']);
1334 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1335 (unsigned char *)v->value, -1, -1,
1341 if (!X509_NAME_entry_count(subj)) {
1342 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1346 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1347 v = sk_CONF_VALUE_value(attr_sk, i);
1348 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1349 (unsigned char *)v->value, -1))
1356 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1357 char *value, int nid, int n_min, int n_max,
1358 unsigned long chtype, int mval)
1363 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1364 "DN value", "DN default");
1365 if ((ret == 0) || (ret == 1))
1369 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1370 (unsigned char *)buf, -1, -1, mval))
1376 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1377 char *value, int nid, int n_min,
1378 int n_max, unsigned long chtype)
1383 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1384 "Attribute value", "Attribute default");
1385 if ((ret == 0) || (ret == 1))
1389 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1390 (unsigned char *)buf, -1)) {
1391 BIO_printf(bio_err, "Error adding attribute\n");
1392 ERR_print_errors(bio_err);
1399 static int build_data(char *text, const char *def, char *value,
1400 int n_min, int n_max, char *buf, const int buf_size,
1401 const char *desc1, const char *desc2)
1406 BIO_printf(bio_err, "%s [%s]:", text, def);
1407 (void)BIO_flush(bio_err);
1408 if (value != NULL) {
1409 if (!join(buf, buf_size, value, "\n", desc1))
1411 BIO_printf(bio_err, "%s\n", value);
1415 if (!fgets(buf, buf_size, stdin))
1425 if (buf[0] == '\n') {
1426 if ((def == NULL) || (def[0] == '\0'))
1428 if (!join(buf, buf_size, def, "\n", desc2))
1430 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1435 if (buf[i - 1] != '\n') {
1436 BIO_printf(bio_err, "Missing newline at end of input\n");
1440 #ifdef CHARSET_EBCDIC
1441 ebcdic2ascii(buf, buf, i);
1443 if (!req_check_len(i, n_min, n_max)) {
1451 static int req_check_len(int len, int n_min, int n_max)
1453 if (n_min > 0 && len < n_min) {
1455 "String too short, must be at least %d bytes long\n", n_min);
1458 if (n_max >= 0 && len > n_max) {
1460 "String too long, must be at most %d bytes long\n", n_max);
1466 /* Check if the end of a string matches 'end' */
1467 static int check_end(const char *str, const char *end)
1476 tmp = str + slen - elen;
1477 return strcmp(tmp, end);
1481 * Merge the two strings together into the result buffer checking for
1482 * overflow and producing an error message if there is.
1484 static int join(char buf[], size_t buf_size, const char *name,
1485 const char *tail, const char *desc)
1487 const size_t name_len = strlen(name), tail_len = strlen(tail);
1489 if (name_len + tail_len + 1 > buf_size) {
1490 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1493 memcpy(buf, name, name_len);
1494 memcpy(buf + name_len, tail, tail_len + 1);
1498 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1499 char **pkeytype, long *pkeylen,
1500 ENGINE *keygen_engine)
1502 EVP_PKEY_CTX *gctx = NULL;
1503 EVP_PKEY *param = NULL;
1506 const char *keytype = NULL;
1507 size_t keytypelen = 0;
1508 int expect_paramfile = 0;
1509 const char *paramfile = NULL;
1511 /* Treat the first part of gstr, and only that */
1514 * Special case: when no string given, default to RSA and the
1515 * key length given by |*pkeylen|.
1519 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1520 /* Special case: only keylength given from string, so default to RSA */
1522 /* The second part treatment will do the rest */
1524 const char *p = strchr(gstr, ':');
1532 if (strncmp(gstr, "param", len) == 0) {
1533 expect_paramfile = 1;
1540 gstr = gstr + len + 1;
1545 /* Treat the second part of gstr, if there is one */
1547 /* If the second part starts with a digit, we assume it's a size */
1548 if (!expect_paramfile && gstr[0] >= '0' && gstr[0] <= '9')
1549 keylen = atol(gstr);
1554 if (paramfile != NULL) {
1555 pbio = BIO_new_file(paramfile, "r");
1557 BIO_printf(bio_err, "Cannot open parameter file %s\n", paramfile);
1560 param = PEM_read_bio_Parameters(pbio, NULL);
1562 if (param == NULL) {
1565 (void)BIO_reset(pbio);
1566 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1568 param = X509_get_pubkey(x);
1575 if (param == NULL) {
1576 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1579 if (keytype == NULL) {
1580 keytype = EVP_PKEY_get0_type_name(param);
1585 *pkeytype = OPENSSL_strndup(keytype, keytypelen);
1587 *pkeytype = OPENSSL_strdup(keytype);
1590 if (param != NULL) {
1591 if (!EVP_PKEY_is_a(param, *pkeytype)) {
1592 BIO_printf(bio_err, "Key type does not match parameters\n");
1593 EVP_PKEY_free(param);
1597 if (keygen_engine != NULL)
1598 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1600 gctx = EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(),
1601 param, app_get0_propq());
1602 *pkeylen = EVP_PKEY_bits(param);
1603 EVP_PKEY_free(param);
1605 if (keygen_engine != NULL) {
1606 int pkey_id = get_legacy_pkey_id(app_get0_libctx(), keytype,
1609 if (pkey_id != NID_undef)
1610 gctx = EVP_PKEY_CTX_new_id(pkey_id, keygen_engine);
1612 gctx = EVP_PKEY_CTX_new_from_name(app_get0_libctx(),
1613 keytype, app_get0_propq());
1618 BIO_puts(bio_err, "Error allocating keygen context\n");
1622 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1623 BIO_puts(bio_err, "Error initializing keygen context\n");
1624 EVP_PKEY_CTX_free(gctx);
1628 OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
1629 size_t bits = keylen;
1632 OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_BITS, &bits);
1633 if (EVP_PKEY_CTX_set_params(gctx, params) <= 0) {
1634 BIO_puts(bio_err, "Error setting keysize\n");
1635 EVP_PKEY_CTX_free(gctx);
1643 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1646 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1648 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1657 BIO_write(b, &c, 1);