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/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 #include <openssl/rsa.h>
29 #ifndef OPENSSL_NO_DSA
30 # include <openssl/dsa.h>
33 #define BITS "default_bits"
34 #define KEYFILE "default_keyfile"
35 #define PROMPT "prompt"
36 #define DISTINGUISHED_NAME "distinguished_name"
37 #define ATTRIBUTES "attributes"
38 #define V3_EXTENSIONS "x509_extensions"
39 #define REQ_EXTENSIONS "req_extensions"
40 #define STRING_MASK "string_mask"
41 #define UTF8_IN "utf8"
43 #define DEFAULT_KEY_LENGTH 2048
44 #define MIN_KEY_LENGTH 512
45 #define DEFAULT_DAYS 30 /* default cert validity period in days */
46 #define UNSET_DAYS -2 /* -1 may be used for testing expiration checks */
47 #define EXT_COPY_UNSET -1
49 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
50 int mutlirdn, int attribs, unsigned long chtype);
51 static int prompt_info(X509_REQ *req,
52 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
53 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
54 int attribs, unsigned long chtype);
55 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *sk,
56 STACK_OF(CONF_VALUE) *attr, int attribs,
57 unsigned long chtype);
58 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
59 char *value, int nid, int n_min, int n_max,
60 unsigned long chtype);
61 static int add_DN_object(X509_NAME *n, char *text, const char *def,
62 char *value, int nid, int n_min, int n_max,
63 unsigned long chtype, int mval);
64 static int genpkey_cb(EVP_PKEY_CTX *ctx);
65 static int build_data(char *text, const char *def, char *value,
66 int n_min, int n_max, char *buf, const int buf_size,
67 const char *desc1, const char *desc2);
68 static int req_check_len(int len, int n_min, int n_max);
69 static int check_end(const char *str, const char *end);
70 static int join(char buf[], size_t buf_size, const char *name,
71 const char *tail, const char *desc);
72 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
73 int *pkey_type, long *pkeylen,
74 char **palgnam, ENGINE *keygen_engine);
76 static const char *section = "req";
77 static CONF *req_conf = NULL;
78 static CONF *addext_conf = NULL;
81 typedef enum OPTION_choice {
83 OPT_INFORM, OPT_OUTFORM, OPT_ENGINE, OPT_KEYGEN_ENGINE, OPT_KEY,
84 OPT_PUBKEY, OPT_NEW, OPT_CONFIG, OPT_KEYFORM, OPT_IN, OPT_OUT,
85 OPT_KEYOUT, OPT_PASSIN, OPT_PASSOUT, OPT_NEWKEY,
86 OPT_PKEYOPT, OPT_SIGOPT, OPT_VFYOPT, OPT_BATCH, OPT_NEWHDR, OPT_MODULUS,
87 OPT_VERIFY, OPT_NOENC, OPT_NODES, OPT_NOOUT, OPT_VERBOSE, OPT_UTF8,
88 OPT_NAMEOPT, OPT_REQOPT, OPT_SUBJ, OPT_SUBJECT, OPT_TEXT, OPT_X509,
90 OPT_MULTIVALUE_RDN, OPT_DAYS, OPT_SET_SERIAL,
91 OPT_COPY_EXTENSIONS, OPT_ADDEXT, OPT_EXTENSIONS,
92 OPT_REQEXTS, OPT_PRECERT, OPT_MD,
94 OPT_R_ENUM, OPT_PROV_ENUM
97 const OPTIONS req_options[] = {
98 OPT_SECTION("General"),
99 {"help", OPT_HELP, '-', "Display this summary"},
100 #ifndef OPENSSL_NO_ENGINE
101 {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
102 {"keygen_engine", OPT_KEYGEN_ENGINE, 's',
103 "Specify engine to be used for key generation operations"},
105 {"in", OPT_IN, '<', "X.509 request input file"},
106 {"inform", OPT_INFORM, 'F', "Input format - DER or PEM"},
107 {"verify", OPT_VERIFY, '-', "Verify self-signature on the request"},
109 OPT_SECTION("Certificate"),
110 {"new", OPT_NEW, '-', "New request"},
111 {"config", OPT_CONFIG, '<', "Request template file"},
112 {"section", OPT_SECTION, 's', "Config section to use (default \"req\")"},
113 {"utf8", OPT_UTF8, '-', "Input characters are UTF8 (default ASCII)"},
114 {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
115 {"reqopt", OPT_REQOPT, 's', "Various request text options"},
116 {"text", OPT_TEXT, '-', "Text form of request"},
117 {"x509", OPT_X509, '-',
118 "Output an x509 structure instead of a cert request"},
119 {"CA", OPT_CA, '<', "Issuer certificate to use with -x509"},
120 {"CAkey", OPT_CAKEY, 's',
121 "Issuer private key to use with -x509; default is -CA arg"},
122 {OPT_MORE_STR, 1, 1, "(Required by some CA's)"},
123 {"subj", OPT_SUBJ, 's', "Set or modify subject of request or cert"},
124 {"subject", OPT_SUBJECT, '-',
125 "Print the subject of the output request or cert"},
126 {"multivalue-rdn", OPT_MULTIVALUE_RDN, '-',
127 "Deprecated; multi-valued RDNs support is always on."},
128 {"days", OPT_DAYS, 'p', "Number of days cert is valid for"},
129 {"set_serial", OPT_SET_SERIAL, 's', "Serial number to use"},
130 {"copy_extensions", OPT_COPY_EXTENSIONS, 's',
131 "copy extensions from request when using -x509"},
132 {"addext", OPT_ADDEXT, 's',
133 "Additional cert extension key=value pair (may be given more than once)"},
134 {"extensions", OPT_EXTENSIONS, 's',
135 "Cert extension section (override value in config file)"},
136 {"reqexts", OPT_REQEXTS, 's',
137 "Request extension section (override value in config file)"},
138 {"precert", OPT_PRECERT, '-', "Add a poison extension (implies -new)"},
140 OPT_SECTION("Keys and Signing"),
141 {"key", OPT_KEY, 's', "Private key to use"},
142 {"keyform", OPT_KEYFORM, 'f', "Key file format (ENGINE, other values ignored)"},
143 {"pubkey", OPT_PUBKEY, '-', "Output public key"},
144 {"keyout", OPT_KEYOUT, '>', "File to save newly created private key"},
145 {"passin", OPT_PASSIN, 's', "Private key and certificate password source"},
146 {"passout", OPT_PASSOUT, 's', "Output file pass phrase source"},
147 {"newkey", OPT_NEWKEY, 's', "Specify as type:bits"},
148 {"pkeyopt", OPT_PKEYOPT, 's', "Public key options as opt:value"},
149 {"sigopt", OPT_SIGOPT, 's', "Signature parameter in n:v form"},
150 {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
151 {"", OPT_MD, '-', "Any supported digest"},
153 OPT_SECTION("Output"),
154 {"out", OPT_OUT, '>', "Output file"},
155 {"outform", OPT_OUTFORM, 'F', "Output format - DER or PEM"},
156 {"batch", OPT_BATCH, '-',
157 "Do not ask anything during request generation"},
158 {"verbose", OPT_VERBOSE, '-', "Verbose output"},
159 {"noenc", OPT_NOENC, '-', "Don't encrypt private keys"},
160 {"nodes", OPT_NODES, '-', "Don't encrypt private keys; deprecated"},
161 {"noout", OPT_NOOUT, '-', "Do not output REQ"},
162 {"newhdr", OPT_NEWHDR, '-', "Output \"NEW\" in the header lines"},
163 {"modulus", OPT_MODULUS, '-', "RSA modulus"},
171 * An LHASH of strings, where each string is an extension name.
173 static unsigned long ext_name_hash(const OPENSSL_STRING *a)
175 return OPENSSL_LH_strhash((const char *)a);
178 static int ext_name_cmp(const OPENSSL_STRING *a, const OPENSSL_STRING *b)
180 return strcmp((const char *)a, (const char *)b);
183 static void exts_cleanup(OPENSSL_STRING *x)
185 OPENSSL_free((char *)x);
189 * Is the |kv| key already duplicated? This is remarkably tricky to get right.
190 * Return 0 if unique, -1 on runtime error; 1 if found or a syntax error.
192 static int duplicated(LHASH_OF(OPENSSL_STRING) *addexts, char *kv)
198 /* Skip leading whitespace, make a copy. */
199 while (*kv && isspace(*kv))
202 if ((p = strchr(kv, '=')) == NULL)
205 if ((kv = OPENSSL_strdup(kv)) == NULL)
208 /* Skip trailing space before the equal sign. */
209 for (p = kv + off; p > kv; --p)
218 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
219 p = (char *)lh_OPENSSL_STRING_insert(addexts, (OPENSSL_STRING *)kv);
223 } else if (lh_OPENSSL_STRING_error(addexts)) {
231 int req_main(int argc, char **argv)
233 ASN1_INTEGER *serial = NULL;
235 ENGINE *e = NULL, *gen_eng = NULL;
236 EVP_PKEY *pkey = NULL, *CAkey = NULL;
237 EVP_PKEY_CTX *genctx = NULL;
238 STACK_OF(OPENSSL_STRING) *pkeyopts = NULL, *sigopts = NULL, *vfyopts = NULL;
239 LHASH_OF(OPENSSL_STRING) *addexts = NULL;
240 X509 *new_x509 = NULL, *CAcert = NULL;
241 X509_REQ *req = NULL;
242 EVP_CIPHER *cipher = NULL;
243 int ext_copy = EXT_COPY_UNSET;
244 BIO *addext_bio = NULL;
245 char *extensions = NULL;
246 const char *infile = NULL, *CAfile = NULL, *CAkeyfile = NULL;
247 char *outfile = NULL, *keyfile = NULL, *digest = NULL;
248 char *keyalgstr = NULL, *p, *prog, *passargin = NULL, *passargout = NULL;
249 char *passin = NULL, *passout = NULL;
250 char *nofree_passin = NULL, *nofree_passout = NULL;
251 char *req_exts = NULL, *subj = NULL;
252 X509_NAME *fsubj = NULL;
253 char *template = default_config_file, *keyout = NULL;
254 const char *keyalg = NULL;
256 int days = UNSET_DAYS;
257 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 if (keyalg != NULL) {
635 genctx = set_keygen_ctx(keyalg, &pkey_type, &newkey_len,
636 &keyalgstr, gen_eng);
641 if (newkey_len < MIN_KEY_LENGTH
642 && (pkey_type == EVP_PKEY_RSA || pkey_type == EVP_PKEY_DSA)) {
643 BIO_printf(bio_err, "Private key length is too short,\n");
644 BIO_printf(bio_err, "it needs to be at least %d bits, not %ld.\n",
645 MIN_KEY_LENGTH, newkey_len);
649 if (pkey_type == EVP_PKEY_RSA
650 && newkey_len > OPENSSL_RSA_MAX_MODULUS_BITS)
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 (pkey_type == EVP_PKEY_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 (genctx == NULL) {
666 genctx = set_keygen_ctx(NULL, &pkey_type, &newkey_len,
667 &keyalgstr, gen_eng);
672 if (pkeyopts != NULL) {
674 for (i = 0; i < sk_OPENSSL_STRING_num(pkeyopts); i++) {
675 genopt = sk_OPENSSL_STRING_value(pkeyopts, i);
676 if (pkey_ctrl_string(genctx, genopt) <= 0) {
677 BIO_printf(bio_err, "Key parameter error \"%s\"\n", genopt);
683 if (pkey_type == EVP_PKEY_EC) {
684 BIO_printf(bio_err, "Generating an EC private key\n");
686 BIO_printf(bio_err, "Generating a %s private key\n", keyalgstr);
689 EVP_PKEY_CTX_set_cb(genctx, genpkey_cb);
690 EVP_PKEY_CTX_set_app_data(genctx, bio_err);
692 if (EVP_PKEY_keygen(genctx, &pkey) <= 0) {
693 BIO_puts(bio_err, "Error generating key\n");
697 EVP_PKEY_CTX_free(genctx);
700 if (keyout == NULL) {
701 keyout = NCONF_get_string(req_conf, section, KEYFILE);
707 BIO_printf(bio_err, "Writing new private key to stdout\n");
709 BIO_printf(bio_err, "Writing new private key to '%s'\n", keyout);
710 out = bio_open_owner(keyout, outformat, newreq);
714 p = NCONF_get_string(req_conf, section, "encrypt_rsa_key");
717 p = NCONF_get_string(req_conf, section, "encrypt_key");
721 if ((p != NULL) && (strcmp(p, "no") == 0))
729 if (!PEM_write_bio_PrivateKey(out, pkey, cipher,
730 NULL, 0, NULL, passout)) {
731 if ((ERR_GET_REASON(ERR_peek_error()) ==
732 PEM_R_PROBLEMS_GETTING_PASSWORD) && (i < 3)) {
741 BIO_printf(bio_err, "-----\n");
745 * subj is expected to be in the format /type0=value0/type1=value1/type2=...
746 * where characters may be escaped by \
749 && (fsubj = parse_name(subj, chtype, multirdn, "subject")) == NULL)
753 req = load_csr(infile, informat, "X509 request");
758 if (CAkeyfile == NULL)
760 if (CAkeyfile != NULL) {
761 if (CAfile == NULL) {
763 "Ignoring -CAkey option since no -CA option is given\n");
765 if ((CAkey = load_key(CAkeyfile, FORMAT_UNDEF,
766 0, passin, e, "issuer private key")) == NULL)
770 if (CAfile != NULL) {
773 "Warning: Ignoring -CA option without -x509\n");
775 if (CAkeyfile == NULL) {
777 "Need to give the -CAkey option if using -CA\n");
780 if ((CAcert = load_cert_pass(CAfile, FORMAT_UNDEF, 1, passin,
781 "issuer certificate")) == NULL)
783 if (!X509_check_private_key(CAcert, CAkey)) {
785 "Issuer certificate and key do not match\n");
790 if (newreq || gen_x509) {
791 if (pkey == NULL /* can happen only if !newreq */) {
792 BIO_printf(bio_err, "Must provide a signature key using -key\n");
797 req = X509_REQ_new_ex(app_get0_libctx(), app_get0_propq());
802 if (!make_REQ(req, pkey, fsubj, multirdn, !gen_x509, chtype)){
803 BIO_printf(bio_err, "Error making certificate request\n");
808 EVP_PKEY *pub_key = X509_REQ_get0_pubkey(req);
810 X509_NAME *issuer = CAcert != NULL ? X509_get_subject_name(CAcert) :
811 X509_REQ_get_subject_name(req);
812 X509_NAME *n_subj = fsubj != NULL ? fsubj :
813 X509_REQ_get_subject_name(req);
815 if ((new_x509 = X509_new_ex(app_get0_libctx(),
816 app_get0_propq())) == NULL)
819 if (serial != NULL) {
820 if (!X509_set_serialNumber(new_x509, serial))
823 if (!rand_serial(NULL, X509_get_serialNumber(new_x509)))
827 if (!X509_set_issuer_name(new_x509, issuer))
829 if (days == UNSET_DAYS) {
832 if (!set_cert_times(new_x509, NULL, NULL, days))
834 if (!X509_set_subject_name(new_x509, n_subj))
836 if (!pub_key || !X509_set_pubkey(new_x509, pub_key))
838 if (ext_copy == EXT_COPY_UNSET) {
839 BIO_printf(bio_err, "Warning: No -copy_extensions given; ignoring any extensions in the request\n");
840 } else if (!copy_extensions(new_x509, req, ext_copy)) {
841 BIO_printf(bio_err, "Error copying extensions from request\n");
845 /* Set up V3 context struct */
846 X509V3_set_ctx(&ext_ctx, CAcert != NULL ? CAcert : new_x509,
847 new_x509, NULL, NULL, X509V3_CTX_REPLACE);
848 if (CAcert == NULL) { /* self-issued, possibly self-signed */
849 if (!X509V3_set_issuer_pkey(&ext_ctx, pkey)) /* prepare right AKID */
852 if (!X509_check_private_key(new_x509, pkey))
854 "Warning: Signature key and public key of cert do not match\n");
857 X509V3_set_nconf(&ext_ctx, req_conf);
860 if (extensions != NULL
861 && !X509V3_EXT_add_nconf(req_conf, &ext_ctx, extensions,
863 BIO_printf(bio_err, "Error adding x509 extensions from section %s\n",
867 if (addext_conf != NULL
868 && !X509V3_EXT_add_nconf(addext_conf, &ext_ctx, "default",
870 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
874 /* If a pre-cert was requested, we need to add a poison extension */
876 if (X509_add1_ext_i2d(new_x509, NID_ct_precert_poison,
878 BIO_printf(bio_err, "Error adding poison extension\n");
883 i = do_X509_sign(new_x509, CAcert != NULL ? CAkey : pkey,
884 digest, sigopts, &ext_ctx);
890 /* Set up V3 context struct */
891 X509V3_set_ctx(&ext_ctx, NULL, NULL, req, NULL, 0);
892 X509V3_set_nconf(&ext_ctx, req_conf);
896 && !X509V3_EXT_REQ_add_nconf(req_conf, &ext_ctx,
898 BIO_printf(bio_err, "Error adding request extensions from section %s\n",
902 if (addext_conf != NULL
903 && !X509V3_EXT_REQ_add_nconf(addext_conf, &ext_ctx, "default",
905 BIO_printf(bio_err, "Error adding extensions defined via -addext\n");
908 i = do_X509_REQ_sign(req, pkey, digest, sigopts);
914 if (subj != NULL && !newreq && !gen_x509) {
916 BIO_printf(out, "Modifying subject of certificate request\n");
917 print_name(out, "Old subject=", X509_REQ_get_subject_name(req));
920 if (!X509_REQ_set_subject_name(req, fsubj)) {
921 BIO_printf(bio_err, "Error modifying subject of certificate request\n");
926 print_name(out, "New subject=", X509_REQ_get_subject_name(req));
931 EVP_PKEY *tpubkey = pkey;
933 if (tpubkey == NULL) {
934 tpubkey = X509_REQ_get0_pubkey(req);
939 i = do_X509_REQ_verify(req, tpubkey, vfyopts);
944 BIO_printf(bio_err, "Certificate request self-signature verify failure\n");
945 ERR_print_errors(bio_err);
947 BIO_printf(bio_err, "Certificate request self-signature verify OK\n");
951 if (noout && !text && !modulus && !subject && !pubkey) {
956 out = bio_open_default(outfile,
957 keyout != NULL && outfile != NULL &&
958 strcmp(keyout, outfile) == 0 ? 'a' : 'w',
964 EVP_PKEY *tpubkey = X509_REQ_get0_pubkey(req);
966 if (tpubkey == NULL) {
967 BIO_printf(bio_err, "Error getting public key\n");
970 PEM_write_bio_PUBKEY(out, tpubkey);
975 ret = X509_print_ex(out, new_x509, get_nameopt(), reqflag);
977 ret = X509_REQ_print_ex(out, req, get_nameopt(), reqflag);
981 BIO_printf(bio_err, "Error printing certificate\n");
983 BIO_printf(bio_err, "Error printing certificate request\n");
989 print_name(out, "subject=", gen_x509
990 ? X509_get_subject_name(new_x509)
991 : X509_REQ_get_subject_name(req));
998 tpubkey = X509_get0_pubkey(new_x509);
1000 tpubkey = X509_REQ_get0_pubkey(req);
1001 if (tpubkey == NULL) {
1002 fprintf(stdout, "Modulus is unavailable\n");
1005 fprintf(stdout, "Modulus=");
1006 if (EVP_PKEY_is_a(tpubkey, "RSA")) {
1009 /* Every RSA key has an 'n' */
1010 EVP_PKEY_get_bn_param(pkey, "n", &n);
1014 fprintf(stdout, "Wrong Algorithm type");
1016 fprintf(stdout, "\n");
1019 if (!noout && !gen_x509) {
1020 if (outformat == FORMAT_ASN1)
1021 i = i2d_X509_REQ_bio(out, req);
1023 i = PEM_write_bio_X509_REQ_NEW(out, req);
1025 i = PEM_write_bio_X509_REQ(out, req);
1027 BIO_printf(bio_err, "Unable to write certificate request\n");
1031 if (!noout && gen_x509 && new_x509 != NULL) {
1032 if (outformat == FORMAT_ASN1)
1033 i = i2d_X509_bio(out, new_x509);
1035 i = PEM_write_bio_X509(out, new_x509);
1037 BIO_printf(bio_err, "Unable to write X509 certificate\n");
1044 ERR_print_errors(bio_err);
1046 NCONF_free(req_conf);
1047 NCONF_free(addext_conf);
1048 BIO_free(addext_bio);
1050 EVP_PKEY_free(pkey);
1051 EVP_PKEY_CTX_free(genctx);
1052 sk_OPENSSL_STRING_free(pkeyopts);
1053 sk_OPENSSL_STRING_free(sigopts);
1054 sk_OPENSSL_STRING_free(vfyopts);
1055 lh_OPENSSL_STRING_doall(addexts, exts_cleanup);
1056 lh_OPENSSL_STRING_free(addexts);
1057 #ifndef OPENSSL_NO_ENGINE
1058 release_engine(gen_eng);
1060 OPENSSL_free(keyalgstr);
1062 X509_NAME_free(fsubj);
1063 X509_free(new_x509);
1065 EVP_PKEY_free(CAkey);
1066 ASN1_INTEGER_free(serial);
1068 if (passin != nofree_passin)
1069 OPENSSL_free(passin);
1070 if (passout != nofree_passout)
1071 OPENSSL_free(passout);
1075 static int make_REQ(X509_REQ *req, EVP_PKEY *pkey, X509_NAME *fsubj,
1076 int multirdn, int attribs, unsigned long chtype)
1080 STACK_OF(CONF_VALUE) *dn_sk = NULL, *attr_sk = NULL;
1081 char *tmp, *dn_sect, *attr_sect;
1083 tmp = NCONF_get_string(req_conf, section, PROMPT);
1086 if ((tmp != NULL) && strcmp(tmp, "no") == 0)
1089 dn_sect = NCONF_get_string(req_conf, section, DISTINGUISHED_NAME);
1090 if (dn_sect == NULL) {
1093 dn_sk = NCONF_get_section(req_conf, dn_sect);
1094 if (dn_sk == NULL) {
1095 BIO_printf(bio_err, "Unable to get '%s' section\n", dn_sect);
1100 attr_sect = NCONF_get_string(req_conf, section, ATTRIBUTES);
1101 if (attr_sect == NULL) {
1104 attr_sk = NCONF_get_section(req_conf, attr_sect);
1105 if (attr_sk == NULL) {
1106 BIO_printf(bio_err, "Unable to get '%s' section\n", attr_sect);
1111 /* so far there is only version 1 */
1112 if (!X509_REQ_set_version(req, X509_REQ_VERSION_1))
1116 i = X509_REQ_set_subject_name(req, fsubj);
1118 i = auto_info(req, dn_sk, attr_sk, attribs, chtype);
1120 i = prompt_info(req, dn_sk, dn_sect, attr_sk, attr_sect, attribs,
1125 if (!X509_REQ_set_pubkey(req, pkey))
1133 static int prompt_info(X509_REQ *req,
1134 STACK_OF(CONF_VALUE) *dn_sk, const char *dn_sect,
1135 STACK_OF(CONF_VALUE) *attr_sk, const char *attr_sect,
1136 int attribs, unsigned long chtype)
1146 X509_NAME *subj = X509_REQ_get_subject_name(req);
1150 "You are about to be asked to enter information that will be incorporated\n");
1151 BIO_printf(bio_err, "into your certificate request.\n");
1153 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1155 "There are quite a few fields but you can leave some blank\n");
1157 "For some fields there will be a default value,\n");
1159 "If you enter '.', the field will be left blank.\n");
1160 BIO_printf(bio_err, "-----\n");
1163 if (sk_CONF_VALUE_num(dn_sk)) {
1168 if (sk_CONF_VALUE_num(dn_sk) <= i)
1171 v = sk_CONF_VALUE_value(dn_sk, i);
1174 if (!check_end(type, "_min") || !check_end(type, "_max") ||
1175 !check_end(type, "_default") || !check_end(type, "_value"))
1178 * Skip past any leading X. X: X, etc to allow for multiple
1181 for (p = v->name; *p; p++)
1182 if ((*p == ':') || (*p == ',') || (*p == '.')) {
1194 /* If OBJ not recognised ignore it */
1195 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1197 if (!join(buf, sizeof(buf), v->name, "_default", "Name"))
1199 if ((def = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1204 if (!join(buf, sizeof(buf), v->name, "_value", "Name"))
1206 if ((value = NCONF_get_string(req_conf, dn_sect, buf)) == NULL) {
1211 if (!join(buf, sizeof(buf), v->name, "_min", "Name"))
1213 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_min)) {
1218 if (!join(buf, sizeof(buf), v->name, "_max", "Name"))
1220 if (!NCONF_get_number(req_conf, dn_sect, buf, &n_max)) {
1225 if (!add_DN_object(subj, v->value, def, value, nid,
1226 n_min, n_max, chtype, mval))
1229 if (X509_NAME_entry_count(subj) == 0) {
1230 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1235 if ((attr_sk != NULL) && (sk_CONF_VALUE_num(attr_sk) > 0)
1238 "\nPlease enter the following 'extra' attributes\n");
1240 "to be sent with your certificate request\n");
1247 if ((attr_sk == NULL) || (sk_CONF_VALUE_num(attr_sk) <= i))
1250 v = sk_CONF_VALUE_value(attr_sk, i);
1252 if ((nid = OBJ_txt2nid(type)) == NID_undef)
1255 if (!join(buf, sizeof(buf), type, "_default", "Name"))
1257 if ((def = NCONF_get_string(req_conf, attr_sect, buf))
1263 if (!join(buf, sizeof(buf), type, "_value", "Name"))
1265 if ((value = NCONF_get_string(req_conf, attr_sect, buf))
1271 if (!join(buf, sizeof(buf), type, "_min", "Name"))
1273 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_min)) {
1278 if (!join(buf, sizeof(buf), type, "_max", "Name"))
1280 if (!NCONF_get_number(req_conf, attr_sect, buf, &n_max)) {
1285 if (!add_attribute_object(req,
1286 v->value, def, value, nid, n_min,
1292 BIO_printf(bio_err, "No template, please set one up.\n");
1300 static int auto_info(X509_REQ *req, STACK_OF(CONF_VALUE) *dn_sk,
1301 STACK_OF(CONF_VALUE) *attr_sk, int attribs,
1302 unsigned long chtype)
1304 int i, spec_char, plus_char;
1310 subj = X509_REQ_get_subject_name(req);
1312 for (i = 0; i < sk_CONF_VALUE_num(dn_sk); i++) {
1314 v = sk_CONF_VALUE_value(dn_sk, i);
1318 * Skip past any leading X. X: X, etc to allow for multiple instances
1320 for (p = v->name; *p; p++) {
1321 #ifndef CHARSET_EBCDIC
1322 spec_char = (*p == ':' || *p == ',' || *p == '.');
1324 spec_char = (*p == os_toascii[':'] || *p == os_toascii[',']
1325 || *p == os_toascii['.']);
1334 #ifndef CHARSET_EBCDIC
1335 plus_char = (*type == '+');
1337 plus_char = (*type == os_toascii['+']);
1345 if (!X509_NAME_add_entry_by_txt(subj, type, chtype,
1346 (unsigned char *)v->value, -1, -1,
1352 if (!X509_NAME_entry_count(subj)) {
1353 BIO_printf(bio_err, "Error: No objects specified in config file\n");
1357 for (i = 0; i < sk_CONF_VALUE_num(attr_sk); i++) {
1358 v = sk_CONF_VALUE_value(attr_sk, i);
1359 if (!X509_REQ_add1_attr_by_txt(req, v->name, chtype,
1360 (unsigned char *)v->value, -1))
1367 static int add_DN_object(X509_NAME *n, char *text, const char *def,
1368 char *value, int nid, int n_min, int n_max,
1369 unsigned long chtype, int mval)
1374 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1375 "DN value", "DN default");
1376 if ((ret == 0) || (ret == 1))
1380 if (!X509_NAME_add_entry_by_NID(n, nid, chtype,
1381 (unsigned char *)buf, -1, -1, mval))
1387 static int add_attribute_object(X509_REQ *req, char *text, const char *def,
1388 char *value, int nid, int n_min,
1389 int n_max, unsigned long chtype)
1394 ret = build_data(text, def, value, n_min, n_max, buf, sizeof(buf),
1395 "Attribute value", "Attribute default");
1396 if ((ret == 0) || (ret == 1))
1400 if (!X509_REQ_add1_attr_by_NID(req, nid, chtype,
1401 (unsigned char *)buf, -1)) {
1402 BIO_printf(bio_err, "Error adding attribute\n");
1403 ERR_print_errors(bio_err);
1410 static int build_data(char *text, const char *def, char *value,
1411 int n_min, int n_max, char *buf, const int buf_size,
1412 const char *desc1, const char *desc2)
1417 BIO_printf(bio_err, "%s [%s]:", text, def);
1418 (void)BIO_flush(bio_err);
1419 if (value != NULL) {
1420 if (!join(buf, buf_size, value, "\n", desc1))
1422 BIO_printf(bio_err, "%s\n", value);
1426 if (!fgets(buf, buf_size, stdin))
1436 if (buf[0] == '\n') {
1437 if ((def == NULL) || (def[0] == '\0'))
1439 if (!join(buf, buf_size, def, "\n", desc2))
1441 } else if ((buf[0] == '.') && (buf[1] == '\n')) {
1446 if (buf[i - 1] != '\n') {
1447 BIO_printf(bio_err, "Missing newline at end of input\n");
1451 #ifdef CHARSET_EBCDIC
1452 ebcdic2ascii(buf, buf, i);
1454 if (!req_check_len(i, n_min, n_max)) {
1462 static int req_check_len(int len, int n_min, int n_max)
1464 if (n_min > 0 && len < n_min) {
1466 "String too short, must be at least %d bytes long\n", n_min);
1469 if (n_max >= 0 && len > n_max) {
1471 "String too long, must be at most %d bytes long\n", n_max);
1477 /* Check if the end of a string matches 'end' */
1478 static int check_end(const char *str, const char *end)
1487 tmp = str + slen - elen;
1488 return strcmp(tmp, end);
1492 * Merge the two strings together into the result buffer checking for
1493 * overflow and producing an error message if there is.
1495 static int join(char buf[], size_t buf_size, const char *name,
1496 const char *tail, const char *desc)
1498 const size_t name_len = strlen(name), tail_len = strlen(tail);
1500 if (name_len + tail_len + 1 > buf_size) {
1501 BIO_printf(bio_err, "%s '%s' too long\n", desc, name);
1504 memcpy(buf, name, name_len);
1505 memcpy(buf + name_len, tail, tail_len + 1);
1509 static EVP_PKEY_CTX *set_keygen_ctx(const char *gstr,
1510 int *pkey_type, long *pkeylen,
1511 char **palgnam, ENGINE *keygen_engine)
1513 EVP_PKEY_CTX *gctx = NULL;
1514 EVP_PKEY *param = NULL;
1517 const char *paramfile = NULL;
1520 *pkey_type = EVP_PKEY_RSA;
1522 } else if (gstr[0] >= '0' && gstr[0] <= '9') {
1523 *pkey_type = EVP_PKEY_RSA;
1524 keylen = atol(gstr);
1526 } else if (strncmp(gstr, "param:", 6) == 0) {
1527 paramfile = gstr + 6;
1529 const char *p = strchr(gstr, ':');
1532 const EVP_PKEY_ASN1_METHOD *ameth;
1539 * The lookup of a the string will cover all engines so keep a note
1540 * of the implementation.
1543 ameth = EVP_PKEY_asn1_find_str(&tmpeng, gstr, len);
1545 if (ameth == NULL) {
1546 BIO_printf(bio_err, "Unknown algorithm %.*s\n", len, gstr);
1550 EVP_PKEY_asn1_get0_info(NULL, pkey_type, NULL, NULL, NULL, ameth);
1551 #ifndef OPENSSL_NO_ENGINE
1552 finish_engine(tmpeng);
1554 if (*pkey_type == EVP_PKEY_RSA) {
1556 keylen = atol(p + 1);
1561 } else if (p != NULL) {
1566 if (paramfile != NULL) {
1567 pbio = BIO_new_file(paramfile, "r");
1569 BIO_printf(bio_err, "Cannot open parameter file %s\n", paramfile);
1572 param = PEM_read_bio_Parameters(pbio, NULL);
1574 if (param == NULL) {
1577 (void)BIO_reset(pbio);
1578 x = PEM_read_bio_X509(pbio, NULL, NULL, NULL);
1580 param = X509_get_pubkey(x);
1587 if (param == NULL) {
1588 BIO_printf(bio_err, "Error reading parameter file %s\n", paramfile);
1591 if (*pkey_type == -1) {
1592 *pkey_type = EVP_PKEY_id(param);
1593 } else if (*pkey_type != EVP_PKEY_base_id(param)) {
1594 BIO_printf(bio_err, "Key type does not match parameters\n");
1595 EVP_PKEY_free(param);
1600 if (palgnam != NULL) {
1601 const EVP_PKEY_ASN1_METHOD *ameth;
1605 ameth = EVP_PKEY_asn1_find(&tmpeng, *pkey_type);
1606 if (ameth == NULL) {
1607 BIO_puts(bio_err, "Internal error: can't find key algorithm\n");
1610 EVP_PKEY_asn1_get0_info(NULL, NULL, NULL, NULL, &anam, ameth);
1611 *palgnam = OPENSSL_strdup(anam);
1612 #ifndef OPENSSL_NO_ENGINE
1613 finish_engine(tmpeng);
1617 if (param != NULL) {
1618 gctx = EVP_PKEY_CTX_new(param, keygen_engine);
1619 *pkeylen = EVP_PKEY_bits(param);
1620 EVP_PKEY_free(param);
1622 gctx = EVP_PKEY_CTX_new_id(*pkey_type, keygen_engine);
1626 BIO_puts(bio_err, "Error allocating keygen context\n");
1630 if (EVP_PKEY_keygen_init(gctx) <= 0) {
1631 BIO_puts(bio_err, "Error initializing keygen context\n");
1632 EVP_PKEY_CTX_free(gctx);
1635 if ((*pkey_type == EVP_PKEY_RSA) && (keylen != -1)) {
1636 if (EVP_PKEY_CTX_set_rsa_keygen_bits(gctx, keylen) <= 0) {
1637 BIO_puts(bio_err, "Error setting RSA keysize\n");
1638 EVP_PKEY_CTX_free(gctx);
1646 static int genpkey_cb(EVP_PKEY_CTX *ctx)
1649 BIO *b = EVP_PKEY_CTX_get_app_data(ctx);
1651 p = EVP_PKEY_CTX_get_keygen_info(ctx, 0);
1660 BIO_write(b, &c, 1);