2 * Copyright 1995-2024 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 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 char **pkeytype
, long *pkeylen
,
74 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
,
89 OPT_X509
, OPT_X509V1
, OPT_CA
, OPT_CAKEY
,
90 OPT_MULTIVALUE_RDN
, OPT_DAYS
, OPT_SET_SERIAL
,
91 OPT_COPY_EXTENSIONS
, OPT_EXTENSIONS
, OPT_REQEXTS
, OPT_ADDEXT
,
93 OPT_SECTION
, OPT_QUIET
,
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 (default stdin)"},
106 {"inform", OPT_INFORM
, 'F',
107 "CSR input format to use (PEM or DER; by default try PEM first)"},
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 X.509 certificate structure instead of a cert request"},
120 {"x509v1", OPT_X509V1
, '-', "Request cert generation with X.509 version 1"},
121 {"CA", OPT_CA
, '<', "Issuer cert to use for signing a cert, implies -x509"},
122 {"CAkey", OPT_CAKEY
, 's',
123 "Issuer private key to use with -CA; default is -CA arg"},
124 {OPT_MORE_STR
, 1, 1, "(Required by some CA's)"},
125 {"subj", OPT_SUBJ
, 's', "Set or modify subject of request or cert"},
126 {"subject", OPT_SUBJECT
, '-',
127 "Print the subject of the output request or cert"},
128 {"multivalue-rdn", OPT_MULTIVALUE_RDN
, '-',
129 "Deprecated; multi-valued RDNs support is always on."},
130 {"days", OPT_DAYS
, 'p', "Number of days cert is valid for"},
131 {"set_serial", OPT_SET_SERIAL
, 's', "Serial number to use"},
132 {"copy_extensions", OPT_COPY_EXTENSIONS
, 's',
133 "copy extensions from request when using -x509"},
134 {"extensions", OPT_EXTENSIONS
, 's',
135 "Cert or request extension section (override value in config file)"},
136 {"reqexts", OPT_REQEXTS
, 's', "An alias for -extensions"},
137 {"addext", OPT_ADDEXT
, 's',
138 "Additional cert extension key=value pair (may be given more than once)"},
139 {"precert", OPT_PRECERT
, '-', "Add a poison extension to generated cert (implies -new)"},
141 OPT_SECTION("Keys and Signing"),
142 {"key", OPT_KEY
, 's', "Key for signing, and to include unless -in given"},
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 write private key to"},
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',
149 "Generate new key with [<alg>:]<nbits> or <alg>[:<file>] or param:<file>"},
150 {"pkeyopt", OPT_PKEYOPT
, 's', "Public key options as opt:value"},
151 {"sigopt", OPT_SIGOPT
, 's', "Signature parameter in n:v form"},
152 {"vfyopt", OPT_VFYOPT
, 's', "Verification parameter in n:v form"},
153 {"", OPT_MD
, '-', "Any supported digest"},
155 OPT_SECTION("Output"),
156 {"out", OPT_OUT
, '>', "Output file"},
157 {"outform", OPT_OUTFORM
, 'F', "Output format - DER or PEM"},
158 {"batch", OPT_BATCH
, '-',
159 "Do not ask anything during request generation"},
160 {"verbose", OPT_VERBOSE
, '-', "Verbose output"},
161 {"quiet", OPT_QUIET
, '-', "Terse output"},
162 {"noenc", OPT_NOENC
, '-', "Don't encrypt private keys"},
163 {"nodes", OPT_NODES
, '-', "Don't encrypt private keys; deprecated"},
164 {"noout", OPT_NOOUT
, '-', "Do not output REQ"},
165 {"newhdr", OPT_NEWHDR
, '-', "Output \"NEW\" in the header lines"},
166 {"modulus", OPT_MODULUS
, '-', "RSA modulus"},
174 * An LHASH of strings, where each string is an extension name.
176 static unsigned long ext_name_hash(const OPENSSL_STRING
*a
)
178 return OPENSSL_LH_strhash((const char *)a
);
181 static int ext_name_cmp(const OPENSSL_STRING
*a
, const OPENSSL_STRING
*b
)
183 return strcmp((const char *)a
, (const char *)b
);
186 static void exts_cleanup(OPENSSL_STRING
*x
)
188 OPENSSL_free((char *)x
);
192 * Is the |kv| key already duplicated?
193 * Return 0 if unique, -1 on runtime error, -2 on syntax error; 1 if found.
195 static int duplicated(LHASH_OF(OPENSSL_STRING
) *addexts
, char *kv
)
201 /* Skip leading whitespace, make a copy. */
202 while (isspace(_UC(*kv
)))
204 if ((p
= strchr(kv
, '=')) == NULL
) {
205 BIO_printf(bio_err
, "Parse error on -addext: missing '='\n");
209 if ((kv
= OPENSSL_strdup(kv
)) == NULL
)
212 /* Skip trailing space before the equal sign. */
213 for (p
= kv
+ off
; p
> kv
; --p
)
214 if (!isspace(_UC(p
[-1])))
217 BIO_printf(bio_err
, "Parse error on -addext: missing key\n");
223 /* Finally have a clean "key"; see if it's there [by attempt to add it]. */
224 p
= (char *)lh_OPENSSL_STRING_insert(addexts
, (OPENSSL_STRING
*)kv
);
226 BIO_printf(bio_err
, "Duplicate extension name: %s\n", kv
);
229 } else if (lh_OPENSSL_STRING_error(addexts
)) {
237 int req_main(int argc
, char **argv
)
239 ASN1_INTEGER
*serial
= NULL
;
241 ENGINE
*e
= NULL
, *gen_eng
= NULL
;
242 EVP_PKEY
*pkey
= NULL
, *CAkey
= NULL
;
243 EVP_PKEY_CTX
*genctx
= NULL
;
244 STACK_OF(OPENSSL_STRING
) *pkeyopts
= NULL
, *sigopts
= NULL
, *vfyopts
= NULL
;
245 LHASH_OF(OPENSSL_STRING
) *addexts
= NULL
;
246 X509
*new_x509
= NULL
, *CAcert
= NULL
;
247 X509_REQ
*req
= NULL
;
248 EVP_CIPHER
*cipher
= NULL
;
249 int ext_copy
= EXT_COPY_UNSET
;
250 BIO
*addext_bio
= NULL
;
251 char *extsect
= NULL
;
252 const char *infile
= NULL
, *CAfile
= NULL
, *CAkeyfile
= NULL
;
253 char *outfile
= NULL
, *keyfile
= NULL
, *digest
= NULL
;
254 char *keyalgstr
= NULL
, *p
, *prog
, *passargin
= NULL
, *passargout
= NULL
;
255 char *passin
= NULL
, *passout
= NULL
;
256 char *nofree_passin
= NULL
, *nofree_passout
= NULL
;
258 X509_NAME
*fsubj
= NULL
;
259 char *template = default_config_file
, *keyout
= NULL
;
260 const char *keyalg
= NULL
;
262 int days
= UNSET_DAYS
;
263 int ret
= 1, gen_x509
= 0, i
= 0, newreq
= 0, verbose
= 0, progress
= 1;
264 int informat
= FORMAT_UNDEF
, outformat
= FORMAT_PEM
, keyform
= FORMAT_UNDEF
;
265 int modulus
= 0, multirdn
= 1, verify
= 0, noout
= 0, text
= 0;
266 int noenc
= 0, newhdr
= 0, subject
= 0, pubkey
= 0, precert
= 0, x509v1
= 0;
267 long newkey_len
= -1;
268 unsigned long chtype
= MBSTRING_ASC
, reqflag
= 0;
270 #ifndef OPENSSL_NO_DES
271 cipher
= (EVP_CIPHER
*)EVP_des_ede3_cbc();
274 opt_set_unknown_name("digest");
275 prog
= opt_init(argc
, argv
, req_options
);
276 while ((o
= opt_next()) != OPT_EOF
) {
281 BIO_printf(bio_err
, "%s: Use -help for summary.\n", prog
);
284 opt_help(req_options
);
288 if (!opt_format(opt_arg(), OPT_FMT_PEMDER
, &informat
))
292 if (!opt_format(opt_arg(), OPT_FMT_PEMDER
, &outformat
))
296 e
= setup_engine(opt_arg(), 0);
298 case OPT_KEYGEN_ENGINE
:
299 #ifndef OPENSSL_NO_ENGINE
300 gen_eng
= setup_engine(opt_arg(), 0);
301 if (gen_eng
== NULL
) {
302 BIO_printf(bio_err
, "Can't find keygen engine %s\n", *argv
);
317 template = opt_arg();
323 if (!opt_format(opt_arg(), OPT_FMT_ANY
, &keyform
))
336 passargin
= opt_arg();
339 passargout
= opt_arg();
346 if (!opt_provider(o
))
354 if (pkeyopts
== NULL
)
355 pkeyopts
= sk_OPENSSL_STRING_new_null();
357 || !sk_OPENSSL_STRING_push(pkeyopts
, opt_arg()))
362 sigopts
= sk_OPENSSL_STRING_new_null();
363 if (!sigopts
|| !sk_OPENSSL_STRING_push(sigopts
, opt_arg()))
368 vfyopts
= sk_OPENSSL_STRING_new_null();
369 if (!vfyopts
|| !sk_OPENSSL_STRING_push(vfyopts
, opt_arg()))
400 chtype
= MBSTRING_UTF8
;
403 if (!set_nameopt(opt_arg()))
407 if (!set_cert_ex(&reqflag
, opt_arg()))
424 CAkeyfile
= opt_arg();
427 days
= atoi(opt_arg());
429 BIO_printf(bio_err
, "%s: -days parameter arg must be >= -1\n",
435 if (serial
!= NULL
) {
436 BIO_printf(bio_err
, "Serial number supplied twice\n");
439 serial
= s2i_ASN1_INTEGER(NULL
, opt_arg());
449 case OPT_MULTIVALUE_RDN
:
452 case OPT_COPY_EXTENSIONS
:
453 if (!set_ext_copy(&ext_copy
, opt_arg())) {
454 BIO_printf(bio_err
, "Invalid extension copy option: \"%s\"\n",
465 if (addexts
== NULL
) {
466 addexts
= lh_OPENSSL_STRING_new(ext_name_hash
, ext_name_cmp
);
467 addext_bio
= BIO_new(BIO_s_mem());
468 if (addexts
== NULL
|| addext_bio
== NULL
)
471 i
= duplicated(addexts
, p
);
475 BIO_printf(bio_err
, "Internal error handling -addext %s\n", p
);
476 if (i
< 0 || BIO_printf(addext_bio
, "%s\n", p
) < 0)
480 newreq
= precert
= 1;
483 digest
= opt_unknown();
488 /* No extra arguments. */
489 if (!opt_check_rest_arg(NULL
))
492 if (!app_RAND_load())
496 if (days
!= UNSET_DAYS
)
497 BIO_printf(bio_err
, "Ignoring -days without -x509; not generating a certificate\n");
498 if (ext_copy
== EXT_COPY_NONE
)
499 BIO_printf(bio_err
, "Ignoring -copy_extensions 'none' when -x509 is not given\n");
501 if (infile
== NULL
) {
506 "Warning: Will read cert request from stdin since no -in option is given\n");
509 if (!app_passwd(passargin
, passargout
, &passin
, &passout
)) {
510 BIO_printf(bio_err
, "Error getting passwords\n");
514 if ((req_conf
= app_load_config_verbose(template, verbose
)) == NULL
)
516 if (addext_bio
!= NULL
) {
519 "Using additional configuration from -addext options\n");
520 if ((addext_conf
= app_load_config_bio(addext_bio
, NULL
)) == NULL
)
523 if (template != default_config_file
&& !app_load_modules(req_conf
))
526 if (req_conf
!= NULL
) {
527 p
= app_conf_try_string(req_conf
, NULL
, "oid_file");
529 BIO
*oid_bio
= BIO_new_file(p
, "r");
531 if (oid_bio
== NULL
) {
534 "Problems opening '%s' for extra OIDs\n", p
);
536 OBJ_create_objects(oid_bio
);
541 if (!add_oid_section(req_conf
))
544 /* Check that any specified digest is fetchable */
545 if (digest
!= NULL
) {
546 if (!opt_check_md(digest
))
549 /* No digest specified, default to configuration */
550 p
= app_conf_try_string(req_conf
, section
, "default_md");
556 extsect
= app_conf_try_string(req_conf
, section
,
557 gen_x509
? V3_EXTENSIONS
: REQ_EXTENSIONS
);
558 if (extsect
!= NULL
) {
559 /* Check syntax of extension section in config file */
562 X509V3_set_ctx_test(&ctx
);
563 X509V3_set_nconf(&ctx
, req_conf
);
564 if (!X509V3_EXT_add_nconf(req_conf
, &ctx
, extsect
, NULL
)) {
566 "Error checking %s extension section %s\n",
567 gen_x509
? "x509" : "request", extsect
);
571 if (addext_conf
!= NULL
) {
572 /* Check syntax of command line extensions */
575 X509V3_set_ctx_test(&ctx
);
576 X509V3_set_nconf(&ctx
, req_conf
);
577 if (!X509V3_EXT_add_nconf(addext_conf
, &ctx
, "default", NULL
)) {
578 BIO_printf(bio_err
, "Error checking extensions defined using -addext\n");
584 passin
= nofree_passin
=
585 app_conf_try_string(req_conf
, section
, "input_password");
588 passout
= nofree_passout
=
589 app_conf_try_string(req_conf
, section
, "output_password");
591 p
= app_conf_try_string(req_conf
, section
, STRING_MASK
);
592 if (p
!= NULL
&& !ASN1_STRING_set_default_mask_asc(p
)) {
593 BIO_printf(bio_err
, "Invalid global string mask setting %s\n", p
);
597 if (chtype
!= MBSTRING_UTF8
) {
598 p
= app_conf_try_string(req_conf
, section
, UTF8_IN
);
599 if (p
!= NULL
&& strcmp(p
, "yes") == 0)
600 chtype
= MBSTRING_UTF8
;
603 if (keyfile
!= NULL
) {
604 pkey
= load_key(keyfile
, keyform
, 0, passin
, e
, "private key");
607 app_RAND_load_conf(req_conf
, section
);
609 if (keyalg
!= NULL
&& pkey
!= NULL
) {
611 "Warning: Not generating key via given -newkey option since -key is given\n");
612 /* Better throw an error in this case */
614 if (newreq
&& pkey
== NULL
) {
615 app_RAND_load_conf(req_conf
, section
);
617 if (!app_conf_try_number(req_conf
, section
, BITS
, &newkey_len
))
618 newkey_len
= DEFAULT_KEY_LENGTH
;
620 genctx
= set_keygen_ctx(keyalg
, &keyalgstr
, &newkey_len
, gen_eng
);
624 if (newkey_len
< MIN_KEY_LENGTH
625 && (EVP_PKEY_CTX_is_a(genctx
, "RSA")
626 || EVP_PKEY_CTX_is_a(genctx
, "RSA-PSS")
627 || EVP_PKEY_CTX_is_a(genctx
, "DSA"))) {
628 BIO_printf(bio_err
, "Private key length too short, needs to be at least %d bits, not %ld.\n",
629 MIN_KEY_LENGTH
, newkey_len
);
633 if (newkey_len
> OPENSSL_RSA_MAX_MODULUS_BITS
634 && (EVP_PKEY_CTX_is_a(genctx
, "RSA")
635 || EVP_PKEY_CTX_is_a(genctx
, "RSA-PSS")))
637 "Warning: It is not recommended to use more than %d bit for RSA keys.\n"
638 " Your key size is %ld! Larger key size may behave not as expected.\n",
639 OPENSSL_RSA_MAX_MODULUS_BITS
, newkey_len
);
641 #ifndef OPENSSL_NO_DSA
642 if (EVP_PKEY_CTX_is_a(genctx
, "DSA")
643 && newkey_len
> OPENSSL_DSA_MAX_MODULUS_BITS
)
645 "Warning: It is not recommended to use more than %d bit for DSA keys.\n"
646 " Your key size is %ld! Larger key size may behave not as expected.\n",
647 OPENSSL_DSA_MAX_MODULUS_BITS
, newkey_len
);
650 if (pkeyopts
!= NULL
) {
652 for (i
= 0; i
< sk_OPENSSL_STRING_num(pkeyopts
); i
++) {
653 genopt
= sk_OPENSSL_STRING_value(pkeyopts
, i
);
654 if (pkey_ctrl_string(genctx
, genopt
) <= 0) {
655 BIO_printf(bio_err
, "Key parameter error \"%s\"\n", genopt
);
661 EVP_PKEY_CTX_set_app_data(genctx
, bio_err
);
663 EVP_PKEY_CTX_set_cb(genctx
, progress_cb
);
665 pkey
= app_keygen(genctx
, keyalgstr
, newkey_len
, verbose
);
669 EVP_PKEY_CTX_free(genctx
);
672 if (keyout
== NULL
&& keyfile
== NULL
)
673 keyout
= app_conf_try_string(req_conf
, section
, KEYFILE
);
675 if (pkey
!= NULL
&& (keyfile
== NULL
|| keyout
!= NULL
)) {
677 BIO_printf(bio_err
, "Writing private key to ");
679 BIO_printf(bio_err
, "stdout\n");
681 BIO_printf(bio_err
, "'%s'\n", keyout
);
683 out
= bio_open_owner(keyout
, outformat
, newreq
);
687 p
= app_conf_try_string(req_conf
, section
, "encrypt_rsa_key");
689 p
= app_conf_try_string(req_conf
, section
, "encrypt_key");
690 if (p
!= NULL
&& strcmp(p
, "no") == 0)
697 if (!PEM_write_bio_PrivateKey(out
, pkey
, cipher
,
698 NULL
, 0, NULL
, passout
)) {
699 if ((ERR_GET_REASON(ERR_peek_error()) ==
700 PEM_R_PROBLEMS_GETTING_PASSWORD
) && (i
< 3)) {
709 BIO_printf(bio_err
, "-----\n");
713 * subj is expected to be in the format /type0=value0/type1=value1/type2=...
714 * where characters may be escaped by \
717 && (fsubj
= parse_name(subj
, chtype
, multirdn
, "subject")) == NULL
)
723 "Warning: Not placing -key in cert or request since request is used\n");
724 req
= load_csr_autofmt(infile
/* if NULL, reads from stdin */,
725 informat
, vfyopts
, "X509 request");
728 } else if (infile
!= NULL
) {
730 "Warning: Ignoring -in option since -new or -newkey or -precert is given\n");
731 /* Better throw an error in this case, as done in the x509 app */
734 if (CAkeyfile
== NULL
)
736 if (CAkeyfile
!= NULL
) {
737 if (CAfile
== NULL
) {
739 "Warning: Ignoring -CAkey option since no -CA option is given\n");
741 if ((CAkey
= load_key(CAkeyfile
, FORMAT_UNDEF
,
744 ? "issuer private key from -CAkey arg"
745 : "issuer private key from -CA arg")) == NULL
)
749 if (CAfile
!= NULL
) {
750 if ((CAcert
= load_cert_pass(CAfile
, FORMAT_UNDEF
, 1, passin
,
751 "issuer cert from -CA arg")) == NULL
)
753 if (!X509_check_private_key(CAcert
, CAkey
)) {
755 "Issuer CA certificate and key do not match\n");
759 if (newreq
|| gen_x509
) {
760 if (CAcert
== NULL
&& pkey
== NULL
) {
761 BIO_printf(bio_err
, "Must provide a signature key using -key or"
762 " provide -CA / -CAkey\n");
767 req
= X509_REQ_new_ex(app_get0_libctx(), app_get0_propq());
772 if (!make_REQ(req
, pkey
, fsubj
, multirdn
, !gen_x509
, chtype
)) {
773 BIO_printf(bio_err
, "Error making certificate request\n");
776 /* Note that -x509 can take over -key and -subj option values. */
779 EVP_PKEY
*pub_key
= X509_REQ_get0_pubkey(req
);
780 EVP_PKEY
*issuer_key
= CAcert
!= NULL
? CAkey
: pkey
;
782 X509_NAME
*issuer
= CAcert
!= NULL
? X509_get_subject_name(CAcert
) :
783 X509_REQ_get_subject_name(req
);
784 X509_NAME
*n_subj
= fsubj
!= NULL
? fsubj
:
785 X509_REQ_get_subject_name(req
);
787 if (CAcert
!= NULL
&& keyfile
!= NULL
)
789 "Warning: Not using -key or -newkey for signing since -CA option is given\n");
791 if ((new_x509
= X509_new_ex(app_get0_libctx(),
792 app_get0_propq())) == NULL
)
795 if (serial
!= NULL
) {
796 if (!X509_set_serialNumber(new_x509
, serial
))
799 if (!rand_serial(NULL
, X509_get_serialNumber(new_x509
)))
803 if (!X509_set_issuer_name(new_x509
, issuer
))
805 if (days
== UNSET_DAYS
) {
808 if (!set_cert_times(new_x509
, NULL
, NULL
, days
))
810 if (!X509_set_subject_name(new_x509
, n_subj
))
812 if (!pub_key
|| !X509_set_pubkey(new_x509
, pub_key
))
814 if (ext_copy
== EXT_COPY_UNSET
) {
816 BIO_printf(bio_err
, "Warning: No -copy_extensions given; ignoring any extensions in the request\n");
817 } else if (!copy_extensions(new_x509
, req
, ext_copy
)) {
818 BIO_printf(bio_err
, "Error copying extensions from request\n");
822 /* Set up V3 context struct */
823 X509V3_set_ctx(&ext_ctx
, CAcert
!= NULL
? CAcert
: new_x509
,
824 new_x509
, NULL
, NULL
, X509V3_CTX_REPLACE
);
825 /* prepare fallback for AKID, but only if issuer cert == new_x509 */
826 if (CAcert
== NULL
) {
827 if (!X509V3_set_issuer_pkey(&ext_ctx
, issuer_key
))
829 if (!cert_matches_key(new_x509
, issuer_key
))
831 "Warning: Signature key and public key of cert do not match\n");
833 X509V3_set_nconf(&ext_ctx
, req_conf
);
837 && !X509V3_EXT_add_nconf(req_conf
, &ext_ctx
, extsect
, new_x509
)) {
838 BIO_printf(bio_err
, "Error adding x509 extensions from section %s\n",
842 if (addext_conf
!= NULL
843 && !X509V3_EXT_add_nconf(addext_conf
, &ext_ctx
, "default",
845 BIO_printf(bio_err
, "Error adding x509 extensions defined via -addext\n");
849 /* If a pre-cert was requested, we need to add a poison extension */
851 if (X509_add1_ext_i2d(new_x509
, NID_ct_precert_poison
,
853 BIO_printf(bio_err
, "Error adding poison extension\n");
858 i
= do_X509_sign(new_x509
, x509v1
, issuer_key
, digest
, sigopts
,
867 "Warning: Ignoring -precert flag since no cert is produced\n");
869 /* Set up V3 context struct */
870 X509V3_set_ctx(&ext_ctx
, NULL
, NULL
, req
, NULL
, X509V3_CTX_REPLACE
);
871 X509V3_set_nconf(&ext_ctx
, req_conf
);
875 && !X509V3_EXT_REQ_add_nconf(req_conf
, &ext_ctx
, extsect
, req
)) {
876 BIO_printf(bio_err
, "Error adding request extensions from section %s\n",
880 if (addext_conf
!= NULL
881 && !X509V3_EXT_REQ_add_nconf(addext_conf
, &ext_ctx
, "default",
883 BIO_printf(bio_err
, "Error adding request extensions defined via -addext\n");
886 i
= do_X509_REQ_sign(req
, pkey
, digest
, sigopts
);
892 if (subj
!= NULL
&& !newreq
&& !gen_x509
) {
894 BIO_printf(out
, "Modifying subject of certificate request\n");
895 print_name(out
, "Old subject=", X509_REQ_get_subject_name(req
));
898 if (!X509_REQ_set_subject_name(req
, fsubj
)) {
899 BIO_printf(bio_err
, "Error modifying subject of certificate request\n");
904 print_name(out
, "New subject=", X509_REQ_get_subject_name(req
));
909 EVP_PKEY
*tpubkey
= pkey
;
911 if (tpubkey
== NULL
) {
912 tpubkey
= X509_REQ_get0_pubkey(req
);
917 i
= do_X509_REQ_verify(req
, tpubkey
, vfyopts
);
922 BIO_printf(bio_err
, "Certificate request self-signature verify failure\n");
925 BIO_printf(bio_out
, "Certificate request self-signature verify OK\n");
928 if (noout
&& !text
&& !modulus
&& !subject
&& !pubkey
) {
933 out
= bio_open_default(outfile
,
934 keyout
!= NULL
&& outfile
!= NULL
&&
935 strcmp(keyout
, outfile
) == 0 ? 'a' : 'w',
941 EVP_PKEY
*tpubkey
= X509_REQ_get0_pubkey(req
);
943 if (tpubkey
== NULL
) {
944 BIO_printf(bio_err
, "Error getting public key\n");
947 PEM_write_bio_PUBKEY(out
, tpubkey
);
952 ret
= X509_print_ex(out
, new_x509
, get_nameopt(), reqflag
);
954 ret
= X509_REQ_print_ex(out
, req
, get_nameopt(), reqflag
);
958 BIO_printf(bio_err
, "Error printing certificate\n");
960 BIO_printf(bio_err
, "Error printing certificate request\n");
966 print_name(out
, "subject=", gen_x509
967 ? X509_get_subject_name(new_x509
)
968 : X509_REQ_get_subject_name(req
));
975 tpubkey
= X509_get0_pubkey(new_x509
);
977 tpubkey
= X509_REQ_get0_pubkey(req
);
978 if (tpubkey
== NULL
) {
979 BIO_puts(bio_err
, "Modulus is unavailable\n");
982 BIO_puts(out
, "Modulus=");
983 if (EVP_PKEY_is_a(tpubkey
, "RSA") || EVP_PKEY_is_a(tpubkey
, "RSA-PSS")) {
986 if (!EVP_PKEY_get_bn_param(tpubkey
, "n", &n
))
991 BIO_puts(out
, "Wrong Algorithm type");
996 if (!noout
&& !gen_x509
) {
997 if (outformat
== FORMAT_ASN1
)
998 i
= i2d_X509_REQ_bio(out
, req
);
1000 i
= PEM_write_bio_X509_REQ_NEW(out
, req
);
1002 i
= PEM_write_bio_X509_REQ(out
, req
);
1004 BIO_printf(bio_err
, "Unable to write certificate request\n");
1008 if (!noout
&& gen_x509
&& new_x509
!= NULL
) {
1009 if (outformat
== FORMAT_ASN1
)
1010 i
= i2d_X509_bio(out
, new_x509
);
1012 i
= PEM_write_bio_X509(out
, new_x509
);
1014 BIO_printf(bio_err
, "Unable to write X509 certificate\n");
1021 ERR_print_errors(bio_err
);
1023 NCONF_free(req_conf
);
1024 NCONF_free(addext_conf
);
1025 BIO_free(addext_bio
);
1027 EVP_PKEY_free(pkey
);
1028 EVP_PKEY_CTX_free(genctx
);
1029 sk_OPENSSL_STRING_free(pkeyopts
);
1030 sk_OPENSSL_STRING_free(sigopts
);
1031 sk_OPENSSL_STRING_free(vfyopts
);
1032 lh_OPENSSL_STRING_doall(addexts
, exts_cleanup
);
1033 lh_OPENSSL_STRING_free(addexts
);
1034 #ifndef OPENSSL_NO_ENGINE
1035 release_engine(gen_eng
);
1037 OPENSSL_free(keyalgstr
);
1039 X509_NAME_free(fsubj
);
1040 X509_free(new_x509
);
1042 EVP_PKEY_free(CAkey
);
1043 ASN1_INTEGER_free(serial
);
1045 if (passin
!= nofree_passin
)
1046 OPENSSL_free(passin
);
1047 if (passout
!= nofree_passout
)
1048 OPENSSL_free(passout
);
1052 static int make_REQ(X509_REQ
*req
, EVP_PKEY
*pkey
, X509_NAME
*fsubj
,
1053 int multirdn
, int attribs
, unsigned long chtype
)
1057 STACK_OF(CONF_VALUE
) *dn_sk
= NULL
, *attr_sk
= NULL
;
1058 char *tmp
, *dn_sect
, *attr_sect
;
1060 tmp
= app_conf_try_string(req_conf
, section
, PROMPT
);
1061 if (tmp
!= NULL
&& strcmp(tmp
, "no") == 0)
1064 dn_sect
= app_conf_try_string(req_conf
, section
, DISTINGUISHED_NAME
);
1065 if (dn_sect
!= NULL
) {
1066 dn_sk
= NCONF_get_section(req_conf
, dn_sect
);
1067 if (dn_sk
== NULL
) {
1068 BIO_printf(bio_err
, "Unable to get '%s' section\n", dn_sect
);
1073 attr_sect
= app_conf_try_string(req_conf
, section
, ATTRIBUTES
);
1074 if (attr_sect
!= NULL
) {
1075 attr_sk
= NCONF_get_section(req_conf
, attr_sect
);
1076 if (attr_sk
== NULL
) {
1077 BIO_printf(bio_err
, "Unable to get '%s' section\n", attr_sect
);
1082 /* so far there is only version 1 */
1083 if (!X509_REQ_set_version(req
, X509_REQ_VERSION_1
))
1087 i
= X509_REQ_set_subject_name(req
, fsubj
);
1089 i
= auto_info(req
, dn_sk
, attr_sk
, attribs
, chtype
);
1091 i
= prompt_info(req
, dn_sk
, dn_sect
, attr_sk
, attr_sect
, attribs
,
1096 if (!X509_REQ_set_pubkey(req
, pkey
))
1104 static int prompt_info(X509_REQ
*req
,
1105 STACK_OF(CONF_VALUE
) *dn_sk
, const char *dn_sect
,
1106 STACK_OF(CONF_VALUE
) *attr_sk
, const char *attr_sect
,
1107 int attribs
, unsigned long chtype
)
1117 X509_NAME
*subj
= X509_REQ_get_subject_name(req
);
1121 "You are about to be asked to enter information that will be incorporated\n");
1122 BIO_printf(bio_err
, "into your certificate request.\n");
1124 "What you are about to enter is what is called a Distinguished Name or a DN.\n");
1126 "There are quite a few fields but you can leave some blank\n");
1128 "For some fields there will be a default value,\n");
1130 "If you enter '.', the field will be left blank.\n");
1131 BIO_printf(bio_err
, "-----\n");
1134 if (sk_CONF_VALUE_num(dn_sk
)) {
1139 if (sk_CONF_VALUE_num(dn_sk
) <= i
)
1142 v
= sk_CONF_VALUE_value(dn_sk
, i
);
1145 if (!check_end(type
, "_min") || !check_end(type
, "_max") ||
1146 !check_end(type
, "_default") || !check_end(type
, "_value"))
1149 * Skip past any leading X. X: X, etc to allow for multiple
1152 for (p
= v
->name
; *p
; p
++)
1153 if ((*p
== ':') || (*p
== ',') || (*p
== '.')) {
1165 /* If OBJ not recognised ignore it */
1166 if ((nid
= OBJ_txt2nid(type
)) == NID_undef
)
1168 if (!join(buf
, sizeof(buf
), v
->name
, "_default", "Name"))
1170 if ((def
= app_conf_try_string(req_conf
, dn_sect
, buf
)) == NULL
)
1173 if (!join(buf
, sizeof(buf
), v
->name
, "_value", "Name"))
1175 if ((value
= app_conf_try_string(req_conf
, dn_sect
, buf
)) == NULL
)
1178 if (!join(buf
, sizeof(buf
), v
->name
, "_min", "Name"))
1180 if (!app_conf_try_number(req_conf
, dn_sect
, buf
, &n_min
))
1183 if (!join(buf
, sizeof(buf
), v
->name
, "_max", "Name"))
1185 if (!app_conf_try_number(req_conf
, dn_sect
, buf
, &n_max
))
1188 if (!add_DN_object(subj
, v
->value
, def
, value
, nid
,
1189 n_min
, n_max
, chtype
, mval
))
1192 if (X509_NAME_entry_count(subj
) == 0) {
1193 BIO_printf(bio_err
, "Error: No objects specified in config file\n");
1198 if ((attr_sk
!= NULL
) && (sk_CONF_VALUE_num(attr_sk
) > 0)
1201 "\nPlease enter the following 'extra' attributes\n");
1203 "to be sent with your certificate request\n");
1210 if ((attr_sk
== NULL
) || (sk_CONF_VALUE_num(attr_sk
) <= i
))
1213 v
= sk_CONF_VALUE_value(attr_sk
, i
);
1215 if ((nid
= OBJ_txt2nid(type
)) == NID_undef
)
1218 if (!join(buf
, sizeof(buf
), type
, "_default", "Name"))
1220 def
= app_conf_try_string(req_conf
, attr_sect
, buf
);
1224 if (!join(buf
, sizeof(buf
), type
, "_value", "Name"))
1226 value
= app_conf_try_string(req_conf
, attr_sect
, buf
);
1228 if (!join(buf
, sizeof(buf
), type
, "_min", "Name"))
1230 if (!app_conf_try_number(req_conf
, attr_sect
, buf
, &n_min
))
1233 if (!join(buf
, sizeof(buf
), type
, "_max", "Name"))
1235 if (!app_conf_try_number(req_conf
, attr_sect
, buf
, &n_max
))
1238 if (!add_attribute_object(req
,
1239 v
->value
, def
, value
, nid
, n_min
,
1245 BIO_printf(bio_err
, "No template, please set one up.\n");
1253 static int auto_info(X509_REQ
*req
, STACK_OF(CONF_VALUE
) *dn_sk
,
1254 STACK_OF(CONF_VALUE
) *attr_sk
, int attribs
,
1255 unsigned long chtype
)
1257 int i
, spec_char
, plus_char
;
1263 subj
= X509_REQ_get_subject_name(req
);
1265 for (i
= 0; i
< sk_CONF_VALUE_num(dn_sk
); i
++) {
1267 v
= sk_CONF_VALUE_value(dn_sk
, i
);
1271 * Skip past any leading X. X: X, etc to allow for multiple instances
1273 for (p
= v
->name
; *p
; p
++) {
1274 #ifndef CHARSET_EBCDIC
1275 spec_char
= (*p
== ':' || *p
== ',' || *p
== '.');
1277 spec_char
= (*p
== os_toascii
[':'] || *p
== os_toascii
[',']
1278 || *p
== os_toascii
['.']);
1287 #ifndef CHARSET_EBCDIC
1288 plus_char
= (*type
== '+');
1290 plus_char
= (*type
== os_toascii
['+']);
1298 if (!X509_NAME_add_entry_by_txt(subj
, type
, chtype
,
1299 (unsigned char *)v
->value
, -1, -1,
1305 if (!X509_NAME_entry_count(subj
)) {
1306 BIO_printf(bio_err
, "Error: No objects specified in config file\n");
1310 for (i
= 0; i
< sk_CONF_VALUE_num(attr_sk
); i
++) {
1311 v
= sk_CONF_VALUE_value(attr_sk
, i
);
1312 if (!X509_REQ_add1_attr_by_txt(req
, v
->name
, chtype
,
1313 (unsigned char *)v
->value
, -1))
1320 static int add_DN_object(X509_NAME
*n
, char *text
, const char *def
,
1321 char *value
, int nid
, int n_min
, int n_max
,
1322 unsigned long chtype
, int mval
)
1327 ret
= build_data(text
, def
, value
, n_min
, n_max
, buf
, sizeof(buf
),
1328 "DN value", "DN default");
1329 if ((ret
== 0) || (ret
== 1))
1333 if (!X509_NAME_add_entry_by_NID(n
, nid
, chtype
,
1334 (unsigned char *)buf
, -1, -1, mval
))
1340 static int add_attribute_object(X509_REQ
*req
, char *text
, const char *def
,
1341 char *value
, int nid
, int n_min
,
1342 int n_max
, unsigned long chtype
)
1347 ret
= build_data(text
, def
, value
, n_min
, n_max
, buf
, sizeof(buf
),
1348 "Attribute value", "Attribute default");
1349 if ((ret
== 0) || (ret
== 1))
1353 if (!X509_REQ_add1_attr_by_NID(req
, nid
, chtype
,
1354 (unsigned char *)buf
, -1)) {
1355 BIO_printf(bio_err
, "Error adding attribute\n");
1362 static int build_data(char *text
, const char *def
, char *value
,
1363 int n_min
, int n_max
, char *buf
, const int buf_size
,
1364 const char *desc1
, const char *desc2
)
1369 BIO_printf(bio_err
, "%s [%s]:", text
, def
);
1370 (void)BIO_flush(bio_err
);
1371 if (value
!= NULL
) {
1372 if (!join(buf
, buf_size
, value
, "\n", desc1
))
1374 BIO_printf(bio_err
, "%s\n", value
);
1378 if (!fgets(buf
, buf_size
, stdin
))
1388 if (buf
[0] == '\n') {
1389 if ((def
== NULL
) || (def
[0] == '\0'))
1391 if (!join(buf
, buf_size
, def
, "\n", desc2
))
1393 } else if ((buf
[0] == '.') && (buf
[1] == '\n')) {
1398 if (buf
[i
- 1] != '\n') {
1399 BIO_printf(bio_err
, "Missing newline at end of input\n");
1403 #ifdef CHARSET_EBCDIC
1404 ebcdic2ascii(buf
, buf
, i
);
1406 if (!req_check_len(i
, n_min
, n_max
)) {
1414 static int req_check_len(int len
, int n_min
, int n_max
)
1416 if (n_min
> 0 && len
< n_min
) {
1418 "String too short, must be at least %d bytes long\n", n_min
);
1421 if (n_max
>= 0 && len
> n_max
) {
1423 "String too long, must be at most %d bytes long\n", n_max
);
1429 /* Check if the end of a string matches 'end' */
1430 static int check_end(const char *str
, const char *end
)
1439 tmp
= str
+ slen
- elen
;
1440 return strcmp(tmp
, end
);
1444 * Merge the two strings together into the result buffer checking for
1445 * overflow and producing an error message if there is.
1447 static int join(char buf
[], size_t buf_size
, const char *name
,
1448 const char *tail
, const char *desc
)
1450 const size_t name_len
= strlen(name
), tail_len
= strlen(tail
);
1452 if (name_len
+ tail_len
+ 1 > buf_size
) {
1453 BIO_printf(bio_err
, "%s '%s' too long\n", desc
, name
);
1456 memcpy(buf
, name
, name_len
);
1457 memcpy(buf
+ name_len
, tail
, tail_len
+ 1);
1461 static EVP_PKEY_CTX
*set_keygen_ctx(const char *gstr
,
1462 char **pkeytype
, long *pkeylen
,
1463 ENGINE
*keygen_engine
)
1465 EVP_PKEY_CTX
*gctx
= NULL
;
1466 EVP_PKEY
*param
= NULL
;
1469 const char *keytype
= NULL
;
1470 size_t keytypelen
= 0;
1471 int expect_paramfile
= 0;
1472 const char *paramfile
= NULL
;
1474 /* Treat the first part of gstr, and only that */
1477 * Special case: when no string given, default to RSA and the
1478 * key length given by |*pkeylen|.
1482 } else if (gstr
[0] >= '0' && gstr
[0] <= '9') {
1483 /* Special case: only keylength given from string, so default to RSA */
1485 /* The second part treatment will do the rest */
1487 const char *p
= strchr(gstr
, ':');
1495 if (strncmp(gstr
, "param", len
) == 0) {
1496 expect_paramfile
= 1;
1499 "Parameter file requested but no path given: %s\n",
1509 gstr
= gstr
+ len
+ 1;
1514 /* Treat the second part of gstr, if there is one */
1516 /* If the second part starts with a digit, we assume it's a size */
1517 if (!expect_paramfile
&& gstr
[0] >= '0' && gstr
[0] <= '9')
1518 keylen
= atol(gstr
);
1523 if (paramfile
!= NULL
) {
1524 pbio
= BIO_new_file(paramfile
, "r");
1526 BIO_printf(bio_err
, "Cannot open parameter file %s\n", paramfile
);
1529 param
= PEM_read_bio_Parameters(pbio
, NULL
);
1531 if (param
== NULL
) {
1534 (void)BIO_reset(pbio
);
1535 x
= PEM_read_bio_X509(pbio
, NULL
, NULL
, NULL
);
1537 param
= X509_get_pubkey(x
);
1544 if (param
== NULL
) {
1545 BIO_printf(bio_err
, "Error reading parameter file %s\n", paramfile
);
1548 if (keytype
== NULL
) {
1549 keytype
= EVP_PKEY_get0_type_name(param
);
1550 if (keytype
== NULL
) {
1551 EVP_PKEY_free(param
);
1552 BIO_puts(bio_err
, "Unable to determine key type\n");
1559 *pkeytype
= OPENSSL_strndup(keytype
, keytypelen
);
1561 *pkeytype
= OPENSSL_strdup(keytype
);
1563 if (*pkeytype
== NULL
) {
1564 BIO_printf(bio_err
, "Out of memory\n");
1565 EVP_PKEY_free(param
);
1572 if (param
!= NULL
) {
1573 if (!EVP_PKEY_is_a(param
, *pkeytype
)) {
1574 BIO_printf(bio_err
, "Key type does not match parameters\n");
1575 EVP_PKEY_free(param
);
1579 if (keygen_engine
!= NULL
)
1580 gctx
= EVP_PKEY_CTX_new(param
, keygen_engine
);
1582 gctx
= EVP_PKEY_CTX_new_from_pkey(app_get0_libctx(),
1583 param
, app_get0_propq());
1584 *pkeylen
= EVP_PKEY_get_bits(param
);
1585 EVP_PKEY_free(param
);
1587 if (keygen_engine
!= NULL
) {
1588 int pkey_id
= get_legacy_pkey_id(app_get0_libctx(), *pkeytype
,
1591 if (pkey_id
!= NID_undef
)
1592 gctx
= EVP_PKEY_CTX_new_id(pkey_id
, keygen_engine
);
1594 gctx
= EVP_PKEY_CTX_new_from_name(app_get0_libctx(),
1595 *pkeytype
, app_get0_propq());
1600 BIO_puts(bio_err
, "Error allocating keygen context\n");
1604 if (EVP_PKEY_keygen_init(gctx
) <= 0) {
1605 BIO_puts(bio_err
, "Error initializing keygen context\n");
1606 EVP_PKEY_CTX_free(gctx
);
1609 if (keylen
== -1 && (EVP_PKEY_CTX_is_a(gctx
, "RSA")
1610 || EVP_PKEY_CTX_is_a(gctx
, "RSA-PSS")))
1614 OSSL_PARAM params
[] = { OSSL_PARAM_END
, OSSL_PARAM_END
};
1615 size_t bits
= keylen
;
1618 OSSL_PARAM_construct_size_t(OSSL_PKEY_PARAM_BITS
, &bits
);
1619 if (EVP_PKEY_CTX_set_params(gctx
, params
) <= 0) {
1620 BIO_puts(bio_err
, "Error setting keysize\n");
1621 EVP_PKEY_CTX_free(gctx
);