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65718c516e
Add cmd-nits make target. Listing options should stop when it hits the "parameters" separator. Add missing .pod.in files to doc/man1/build.info Tweak find-doc-nits to try openssl-XXX before XXX for POD files and change an error messavge to be more useful. Fix the following pages: ca, cms, crl, dgst, enc, engine, errstr, gendsa, genrsa, list, ocsp, passwd, pkcs7, pkcs12, rand, rehash, req, rsautil, s_server, speed, s_time, sess_id, smime, srp, ts, x509. Reviewed-by: Matt Caswell <matt@openssl.org> Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com> Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/10873)
792 lines
26 KiB
Plaintext
792 lines
26 KiB
Plaintext
=pod
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{- OpenSSL::safe::output_do_not_edit_headers(); -}
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=head1 NAME
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openssl-ca - sample minimal CA application
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=head1 SYNOPSIS
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B<openssl> B<ca>
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[B<-help>]
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[B<-verbose>]
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[B<-config> I<filename>]
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[B<-name> I<section>]
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[B<-gencrl>]
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[B<-revoke> I<file>]
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[B<-valid> I<file>]
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[B<-status> I<serial>]
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[B<-updatedb>]
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[B<-crl_reason> I<reason>]
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[B<-crl_hold> I<instruction>]
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[B<-crl_compromise> I<time>]
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[B<-crl_CA_compromise> I<time>]
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[B<-crldays> I<days>]
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[B<-crlhours> I<hours>]
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[B<-crlsec> I<seconds>]
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[B<-crlexts> I<section>]
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[B<-startdate> I<date>]
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[B<-enddate> I<date>]
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[B<-days> I<arg>]
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[B<-md> I<arg>]
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[B<-policy> I<arg>]
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[B<-keyfile> I<arg>]
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[B<-keyform> B<DER>|B<PEM>]
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[B<-key> I<arg>]
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[B<-passin> I<arg>]
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[B<-cert> I<file>]
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[B<-selfsign>]
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[B<-in> I<file>]
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[B<-out> I<file>]
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[B<-notext>]
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[B<-outdir> I<dir>]
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[B<-infiles>]
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[B<-spkac> I<file>]
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[B<-ss_cert> I<file>]
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[B<-preserveDN>]
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[B<-noemailDN>]
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[B<-batch>]
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[B<-msie_hack>]
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[B<-extensions> I<section>]
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[B<-extfile> I<section>]
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[B<-subj> I<arg>]
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[B<-utf8>]
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[B<-sigopt> I<nm>:I<v>]
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[B<-create_serial>]
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[B<-rand_serial>]
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[B<-multivalue-rdn>]
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[B<-sm2-id> I<string>]
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[B<-sm2-hex-id> I<hex-string>]
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{- $OpenSSL::safe::opt_r_synopsis -}
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{- $OpenSSL::safe::opt_engine_synopsis -}
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[I<certreq>...]
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=for openssl ifdef engine sm2-id sm2-hex-id
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=head1 DESCRIPTION
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This command is a minimal CA application. It can be used
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to sign certificate requests in a variety of forms and generate
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CRLs. It also maintains a text database of issued certificates
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and their status.
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When signing certificates, a single certificate request can be specified
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with the B<-in> option, or multiple requests can be processed by
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specifying a set of B<certreq> files after all options.
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The options descriptions will be divided into each purpose.
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=head1 OPTIONS
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=over 4
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=item B<-help>
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Print out a usage message.
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=item B<-verbose>
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This prints extra details about the operations being performed.
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=item B<-config> I<filename>
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Specifies the configuration file to use.
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Optional; for a description of the default value,
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see L<openssl(1)/COMMAND SUMMARY>.
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=item B<-name> I<section>
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Specifies the configuration file section to use (overrides
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B<default_ca> in the B<ca> section).
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=item B<-in> I<filename>
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An input filename containing a single certificate request to be
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signed by the CA.
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=item B<-ss_cert> I<filename>
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A single self-signed certificate to be signed by the CA.
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=item B<-spkac> I<filename>
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A file containing a single Netscape signed public key and challenge
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and additional field values to be signed by the CA. See the B<SPKAC FORMAT>
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section for information on the required input and output format.
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=item B<-infiles>
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If present this should be the last option, all subsequent arguments
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are taken as the names of files containing certificate requests.
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=item B<-out> I<filename>
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The output file to output certificates to. The default is standard
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output. The certificate details will also be printed out to this
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file in PEM format (except that B<-spkac> outputs DER format).
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=item B<-outdir> I<directory>
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The directory to output certificates to. The certificate will be
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written to a filename consisting of the serial number in hex with
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F<.pem> appended.
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=item B<-cert>
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The CA certificate file.
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=item B<-keyfile> I<filename>
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The private key to sign requests with.
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=item B<-keyform> B<DER>|B<PEM>
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The format of the private key file; the default is B<PEM>.
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See L<openssl(1)/Format Options> for details.
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=item B<-sigopt> I<nm>:I<v>
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Pass options to the signature algorithm during sign or verify operations.
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Names and values of these options are algorithm-specific.
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=item B<-key> I<password>
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=for openssl foreign manual ps(1)
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The password used to encrypt the private key. Since on some
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systems the command line arguments are visible (e.g. Unix with
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the L<ps(1)> utility) this option should be used with caution.
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=item B<-selfsign>
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Indicates the issued certificates are to be signed with the key
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the certificate requests were signed with (given with B<-keyfile>).
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Certificate requests signed with a different key are ignored. If
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B<-spkac>, B<-ss_cert> or B<-gencrl> are given, B<-selfsign> is
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ignored.
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A consequence of using B<-selfsign> is that the self-signed
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certificate appears among the entries in the certificate database
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(see the configuration option B<database>), and uses the same
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serial number counter as all other certificates sign with the
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self-signed certificate.
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=item B<-passin> I<arg>
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The key password source. For more information about the format of B<arg>
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see L<openssl(1)/Pass Phrase Options>.
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=item B<-notext>
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Don't output the text form of a certificate to the output file.
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=item B<-startdate> I<date>
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This allows the start date to be explicitly set. The format of the
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date is YYMMDDHHMMSSZ (the same as an ASN1 UTCTime structure), or
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YYYYMMDDHHMMSSZ (the same as an ASN1 GeneralizedTime structure). In
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both formats, seconds SS and timezone Z must be present.
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=item B<-enddate> I<date>
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This allows the expiry date to be explicitly set. The format of the
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date is YYMMDDHHMMSSZ (the same as an ASN1 UTCTime structure), or
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YYYYMMDDHHMMSSZ (the same as an ASN1 GeneralizedTime structure). In
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both formats, seconds SS and timezone Z must be present.
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=item B<-days> I<arg>
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The number of days to certify the certificate for.
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=item B<-md> I<alg>
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The message digest to use.
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Any digest supported by the L<openssl-dgst(1)> command can be used. For signing
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algorithms that do not support a digest (i.e. Ed25519 and Ed448) any message
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digest that is set is ignored. This option also applies to CRLs.
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=item B<-policy> I<arg>
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This option defines the CA "policy" to use. This is a section in
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the configuration file which decides which fields should be mandatory
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or match the CA certificate. Check out the B<POLICY FORMAT> section
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for more information.
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=item B<-msie_hack>
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This is a deprecated option to make this command work with very old versions
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of the IE certificate enrollment control "certenr3". It used UniversalStrings
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for almost everything. Since the old control has various security bugs
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its use is strongly discouraged.
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=item B<-preserveDN>
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Normally the DN order of a certificate is the same as the order of the
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fields in the relevant policy section. When this option is set the order
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is the same as the request. This is largely for compatibility with the
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older IE enrollment control which would only accept certificates if their
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DNs match the order of the request. This is not needed for Xenroll.
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=item B<-noemailDN>
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The DN of a certificate can contain the EMAIL field if present in the
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request DN, however it is good policy just having the e-mail set into
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the altName extension of the certificate. When this option is set the
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EMAIL field is removed from the certificate' subject and set only in
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the, eventually present, extensions. The B<email_in_dn> keyword can be
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used in the configuration file to enable this behaviour.
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=item B<-batch>
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This sets the batch mode. In this mode no questions will be asked
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and all certificates will be certified automatically.
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=item B<-extensions> I<section>
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The section of the configuration file containing certificate extensions
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to be added when a certificate is issued (defaults to B<x509_extensions>
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unless the B<-extfile> option is used). If no extension section is
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present then, a V1 certificate is created. If the extension section
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is present (even if it is empty), then a V3 certificate is created. See the
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L<x509v3_config(5)> manual page for details of the
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extension section format.
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=item B<-extfile> I<file>
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An additional configuration file to read certificate extensions from
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(using the default section unless the B<-extensions> option is also
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used).
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=item B<-subj> I<arg>
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Supersedes subject name given in the request.
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The arg must be formatted as C</type0=value0/type1=value1/type2=...>.
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Keyword characters may be escaped by C<\> (backslash), and whitespace is
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retained.
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Empty values are permitted, but the corresponding type will not be included
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in the resulting certificate.
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=item B<-utf8>
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This option causes field values to be interpreted as UTF8 strings, by
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default they are interpreted as ASCII. This means that the field
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values, whether prompted from a terminal or obtained from a
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configuration file, must be valid UTF8 strings.
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=item B<-create_serial>
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If reading serial from the text file as specified in the configuration
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fails, specifying this option creates a new random serial to be used as next
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serial number.
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To get random serial numbers, use the B<-rand_serial> flag instead; this
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should only be used for simple error-recovery.
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=item B<-rand_serial>
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Generate a large random number to use as the serial number.
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This overrides any option or configuration to use a serial number file.
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=item B<-multivalue-rdn>
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This option causes the -subj argument to be interpreted with full
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support for multivalued RDNs. Example:
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C</DC=org/DC=OpenSSL/DC=users/UID=123456+CN=John Doe>
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If B<-multi-rdn> is not used then the UID value is C<123456+CN=John Doe>.
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=item B<-sm2-id> I<string>
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Specify the ID string to use when verifying an SM2 certificate. The ID string is
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required by the SM2 signature algorithm for signing and verification.
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=item B<-sm2-hex-id> I<hex-string>
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Specify a binary ID string to use when signing or verifying using an SM2
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certificate. The argument for this option is string of hexadecimal digits.
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{- $OpenSSL::safe::opt_r_item -}
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{- $OpenSSL::safe::opt_engine_item -}
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=back
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=head1 CRL OPTIONS
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=over 4
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=item B<-gencrl>
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This option generates a CRL based on information in the index file.
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=item B<-crldays> I<num>
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The number of days before the next CRL is due. That is the days from
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now to place in the CRL nextUpdate field.
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=item B<-crlhours> I<num>
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The number of hours before the next CRL is due.
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=item B<-crlsec> I<num>
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The number of seconds before the next CRL is due.
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=item B<-revoke> I<filename>
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A filename containing a certificate to revoke.
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=item B<-valid> I<filename>
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A filename containing a certificate to add a Valid certificate entry.
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=item B<-status> I<serial>
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Displays the revocation status of the certificate with the specified
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serial number and exits.
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=item B<-updatedb>
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Updates the database index to purge expired certificates.
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=item B<-crl_reason> I<reason>
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Revocation reason, where I<reason> is one of: B<unspecified>, B<keyCompromise>,
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B<CACompromise>, B<affiliationChanged>, B<superseded>, B<cessationOfOperation>,
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B<certificateHold> or B<removeFromCRL>. The matching of I<reason> is case
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insensitive. Setting any revocation reason will make the CRL v2.
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In practice B<removeFromCRL> is not particularly useful because it is only used
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in delta CRLs which are not currently implemented.
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=item B<-crl_hold> I<instruction>
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This sets the CRL revocation reason code to B<certificateHold> and the hold
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instruction to I<instruction> which must be an OID. Although any OID can be
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used only B<holdInstructionNone> (the use of which is discouraged by RFC2459)
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B<holdInstructionCallIssuer> or B<holdInstructionReject> will normally be used.
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=item B<-crl_compromise> I<time>
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This sets the revocation reason to B<keyCompromise> and the compromise time to
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I<time>. I<time> should be in GeneralizedTime format that is I<YYYYMMDDHHMMSSZ>.
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=item B<-crl_CA_compromise> I<time>
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This is the same as B<crl_compromise> except the revocation reason is set to
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B<CACompromise>.
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=item B<-crlexts> I<section>
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The section of the configuration file containing CRL extensions to
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include. If no CRL extension section is present then a V1 CRL is
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created, if the CRL extension section is present (even if it is
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empty) then a V2 CRL is created. The CRL extensions specified are
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CRL extensions and B<not> CRL entry extensions. It should be noted
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that some software (for example Netscape) can't handle V2 CRLs. See
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L<x509v3_config(5)> manual page for details of the
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extension section format.
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=back
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=head1 CONFIGURATION FILE OPTIONS
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The section of the configuration file containing options for this command
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is found as follows: If the B<-name> command line option is used,
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then it names the section to be used. Otherwise the section to
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be used must be named in the B<default_ca> option of the B<ca> section
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of the configuration file (or in the default section of the
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configuration file). Besides B<default_ca>, the following options are
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read directly from the B<ca> section:
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RANDFILE
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preserve
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msie_hack
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With the exception of B<RANDFILE>, this is probably a bug and may
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change in future releases.
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Many of the configuration file options are identical to command line
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options. Where the option is present in the configuration file
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and the command line the command line value is used. Where an
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option is described as mandatory then it must be present in
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the configuration file or the command line equivalent (if
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any) used.
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=over 4
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=item B<oid_file>
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This specifies a file containing additional B<OBJECT IDENTIFIERS>.
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Each line of the file should consist of the numerical form of the
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object identifier followed by white space then the short name followed
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by white space and finally the long name.
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=item B<oid_section>
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This specifies a section in the configuration file containing extra
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object identifiers. Each line should consist of the short name of the
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object identifier followed by B<=> and the numerical form. The short
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and long names are the same when this option is used.
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=item B<new_certs_dir>
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The same as the B<-outdir> command line option. It specifies
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the directory where new certificates will be placed. Mandatory.
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=item B<certificate>
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The same as B<-cert>. It gives the file containing the CA
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certificate. Mandatory.
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=item B<private_key>
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Same as the B<-keyfile> option. The file containing the
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CA private key. Mandatory.
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=item B<RANDFILE>
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At startup the specified file is loaded into the random number generator,
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and at exit 256 bytes will be written to it. (Note: Using a RANDFILE is
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not necessary anymore, see the L</HISTORY> section.
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=item B<default_days>
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The same as the B<-days> option. The number of days to certify
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a certificate for.
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=item B<default_startdate>
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The same as the B<-startdate> option. The start date to certify
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a certificate for. If not set the current time is used.
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=item B<default_enddate>
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The same as the B<-enddate> option. Either this option or
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B<default_days> (or the command line equivalents) must be
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present.
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=item B<default_crl_hours default_crl_days>
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The same as the B<-crlhours> and the B<-crldays> options. These
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will only be used if neither command line option is present. At
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least one of these must be present to generate a CRL.
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=item B<default_md>
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The same as the B<-md> option. Mandatory except where the signing algorithm does
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not require a digest (i.e. Ed25519 and Ed448).
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=item B<database>
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The text database file to use. Mandatory. This file must be present
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though initially it will be empty.
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=item B<unique_subject>
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If the value B<yes> is given, the valid certificate entries in the
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database must have unique subjects. if the value B<no> is given,
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several valid certificate entries may have the exact same subject.
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The default value is B<yes>, to be compatible with older (pre 0.9.8)
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versions of OpenSSL. However, to make CA certificate roll-over easier,
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it's recommended to use the value B<no>, especially if combined with
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the B<-selfsign> command line option.
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Note that it is valid in some circumstances for certificates to be created
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without any subject. In the case where there are multiple certificates without
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subjects this does not count as a duplicate.
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=item B<serial>
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A text file containing the next serial number to use in hex. Mandatory.
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This file must be present and contain a valid serial number.
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=item B<crlnumber>
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A text file containing the next CRL number to use in hex. The crl number
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will be inserted in the CRLs only if this file exists. If this file is
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present, it must contain a valid CRL number.
|
|
|
|
=item B<x509_extensions>
|
|
|
|
The same as B<-extensions>.
|
|
|
|
=item B<crl_extensions>
|
|
|
|
The same as B<-crlexts>.
|
|
|
|
=item B<preserve>
|
|
|
|
The same as B<-preserveDN>
|
|
|
|
=item B<email_in_dn>
|
|
|
|
The same as B<-noemailDN>. If you want the EMAIL field to be removed
|
|
from the DN of the certificate simply set this to 'no'. If not present
|
|
the default is to allow for the EMAIL filed in the certificate's DN.
|
|
|
|
=item B<msie_hack>
|
|
|
|
The same as B<-msie_hack>
|
|
|
|
=item B<policy>
|
|
|
|
The same as B<-policy>. Mandatory. See the B<POLICY FORMAT> section
|
|
for more information.
|
|
|
|
=item B<name_opt>, B<cert_opt>
|
|
|
|
These options allow the format used to display the certificate details
|
|
when asking the user to confirm signing. All the options supported by
|
|
the B<x509> utilities B<-nameopt> and B<-certopt> switches can be used
|
|
here, except the B<no_signame> and B<no_sigdump> are permanently set
|
|
and cannot be disabled (this is because the certificate signature cannot
|
|
be displayed because the certificate has not been signed at this point).
|
|
|
|
For convenience the values B<ca_default> are accepted by both to produce
|
|
a reasonable output.
|
|
|
|
If neither option is present the format used in earlier versions of
|
|
OpenSSL is used. Use of the old format is B<strongly> discouraged because
|
|
it only displays fields mentioned in the B<policy> section, mishandles
|
|
multicharacter string types and does not display extensions.
|
|
|
|
=item B<copy_extensions>
|
|
|
|
Determines how extensions in certificate requests should be handled.
|
|
If set to B<none> or this option is not present then extensions are
|
|
ignored and not copied to the certificate. If set to B<copy> then any
|
|
extensions present in the request that are not already present are copied
|
|
to the certificate. If set to B<copyall> then all extensions in the
|
|
request are copied to the certificate: if the extension is already present
|
|
in the certificate it is deleted first. See the B<WARNINGS> section before
|
|
using this option.
|
|
|
|
The main use of this option is to allow a certificate request to supply
|
|
values for certain extensions such as subjectAltName.
|
|
|
|
=back
|
|
|
|
=head1 POLICY FORMAT
|
|
|
|
The policy section consists of a set of variables corresponding to
|
|
certificate DN fields. If the value is "match" then the field value
|
|
must match the same field in the CA certificate. If the value is
|
|
"supplied" then it must be present. If the value is "optional" then
|
|
it may be present. Any fields not mentioned in the policy section
|
|
are silently deleted, unless the B<-preserveDN> option is set but
|
|
this can be regarded more of a quirk than intended behaviour.
|
|
|
|
=head1 SPKAC FORMAT
|
|
|
|
The input to the B<-spkac> command line option is a Netscape
|
|
signed public key and challenge. This will usually come from
|
|
the B<KEYGEN> tag in an HTML form to create a new private key.
|
|
It is however possible to create SPKACs using L<openssl-spkac(1)>.
|
|
|
|
The file should contain the variable SPKAC set to the value of
|
|
the SPKAC and also the required DN components as name value pairs.
|
|
If you need to include the same component twice then it can be
|
|
preceded by a number and a '.'.
|
|
|
|
When processing SPKAC format, the output is DER if the B<-out>
|
|
flag is used, but PEM format if sending to stdout or the B<-outdir>
|
|
flag is used.
|
|
|
|
=head1 EXAMPLES
|
|
|
|
Note: these examples assume that the directory structure this command
|
|
assumes is already set up and the relevant files already exist. This
|
|
usually involves creating a CA certificate and private key with
|
|
L<openssl-req(1)>, a serial number file and an empty index file and
|
|
placing them in the relevant directories.
|
|
|
|
To use the sample configuration file below the directories F<demoCA>,
|
|
F<demoCA/private> and F<demoCA/newcerts> would be created. The CA
|
|
certificate would be copied to F<demoCA/cacert.pem> and its private
|
|
key to F<demoCA/private/cakey.pem>. A file F<demoCA/serial> would be
|
|
created containing for example "01" and the empty index file
|
|
F<demoCA/index.txt>.
|
|
|
|
|
|
Sign a certificate request:
|
|
|
|
openssl ca -in req.pem -out newcert.pem
|
|
|
|
Sign an SM2 certificate request:
|
|
|
|
openssl ca -in sm2.csr -out sm2.crt -md sm3 -sigopt "sm2_id:1234567812345678" -sm2-id "1234567812345678"
|
|
|
|
Sign a certificate request, using CA extensions:
|
|
|
|
openssl ca -in req.pem -extensions v3_ca -out newcert.pem
|
|
|
|
Generate a CRL
|
|
|
|
openssl ca -gencrl -out crl.pem
|
|
|
|
Sign several requests:
|
|
|
|
openssl ca -infiles req1.pem req2.pem req3.pem
|
|
|
|
Certify a Netscape SPKAC:
|
|
|
|
openssl ca -spkac spkac.txt
|
|
|
|
A sample SPKAC file (the SPKAC line has been truncated for clarity):
|
|
|
|
SPKAC=MIG0MGAwXDANBgkqhkiG9w0BAQEFAANLADBIAkEAn7PDhCeV/xIxUg8V70YRxK2A5
|
|
CN=Steve Test
|
|
emailAddress=steve@openssl.org
|
|
0.OU=OpenSSL Group
|
|
1.OU=Another Group
|
|
|
|
A sample configuration file with the relevant sections for this command:
|
|
|
|
[ ca ]
|
|
default_ca = CA_default # The default ca section
|
|
|
|
[ CA_default ]
|
|
|
|
dir = ./demoCA # top dir
|
|
database = $dir/index.txt # index file.
|
|
new_certs_dir = $dir/newcerts # new certs dir
|
|
|
|
certificate = $dir/cacert.pem # The CA cert
|
|
serial = $dir/serial # serial no file
|
|
#rand_serial = yes # for random serial#'s
|
|
private_key = $dir/private/cakey.pem# CA private key
|
|
|
|
default_days = 365 # how long to certify for
|
|
default_crl_days= 30 # how long before next CRL
|
|
default_md = md5 # md to use
|
|
|
|
policy = policy_any # default policy
|
|
email_in_dn = no # Don't add the email into cert DN
|
|
|
|
name_opt = ca_default # Subject name display option
|
|
cert_opt = ca_default # Certificate display option
|
|
copy_extensions = none # Don't copy extensions from request
|
|
|
|
[ policy_any ]
|
|
countryName = supplied
|
|
stateOrProvinceName = optional
|
|
organizationName = optional
|
|
organizationalUnitName = optional
|
|
commonName = supplied
|
|
emailAddress = optional
|
|
|
|
=head1 FILES
|
|
|
|
Note: the location of all files can change either by compile time options,
|
|
configuration file entries, environment variables or command line options.
|
|
The values below reflect the default values.
|
|
|
|
/usr/local/ssl/lib/openssl.cnf - master configuration file
|
|
./demoCA - main CA directory
|
|
./demoCA/cacert.pem - CA certificate
|
|
./demoCA/private/cakey.pem - CA private key
|
|
./demoCA/serial - CA serial number file
|
|
./demoCA/serial.old - CA serial number backup file
|
|
./demoCA/index.txt - CA text database file
|
|
./demoCA/index.txt.old - CA text database backup file
|
|
./demoCA/certs - certificate output file
|
|
|
|
=head1 RESTRICTIONS
|
|
|
|
The text database index file is a critical part of the process and
|
|
if corrupted it can be difficult to fix. It is theoretically possible
|
|
to rebuild the index file from all the issued certificates and a current
|
|
CRL: however there is no option to do this.
|
|
|
|
V2 CRL features like delta CRLs are not currently supported.
|
|
|
|
Although several requests can be input and handled at once it is only
|
|
possible to include one SPKAC or self-signed certificate.
|
|
|
|
=head1 BUGS
|
|
|
|
The use of an in-memory text database can cause problems when large
|
|
numbers of certificates are present because, as the name implies
|
|
the database has to be kept in memory.
|
|
|
|
This command really needs rewriting or the required functionality
|
|
exposed at either a command or interface level so a more friendly utility
|
|
(perl script or GUI) can handle things properly. The script
|
|
B<CA.pl> helps a little but not very much.
|
|
|
|
Any fields in a request that are not present in a policy are silently
|
|
deleted. This does not happen if the B<-preserveDN> option is used. To
|
|
enforce the absence of the EMAIL field within the DN, as suggested by
|
|
RFCs, regardless the contents of the request' subject the B<-noemailDN>
|
|
option can be used. The behaviour should be more friendly and
|
|
configurable.
|
|
|
|
Canceling some commands by refusing to certify a certificate can
|
|
create an empty file.
|
|
|
|
=head1 WARNINGS
|
|
|
|
This command is quirky and at times downright unfriendly.
|
|
|
|
This command was originally meant as an example of how to do
|
|
things in a CA. It was not supposed to be used as a full blown CA itself:
|
|
nevertheless some people are using it for this purpose.
|
|
|
|
This command command is effectively a single user command: no locking
|
|
is done on the various files and attempts to run more than one B<openssl ca>
|
|
command on the same database can have unpredictable results.
|
|
|
|
The B<copy_extensions> option should be used with caution. If care is
|
|
not taken then it can be a security risk. For example if a certificate
|
|
request contains a basicConstraints extension with CA:TRUE and the
|
|
B<copy_extensions> value is set to B<copyall> and the user does not spot
|
|
this when the certificate is displayed then this will hand the requester
|
|
a valid CA certificate.
|
|
|
|
This situation can be avoided by setting B<copy_extensions> to B<copy>
|
|
and including basicConstraints with CA:FALSE in the configuration file.
|
|
Then if the request contains a basicConstraints extension it will be
|
|
ignored.
|
|
|
|
It is advisable to also include values for other extensions such
|
|
as B<keyUsage> to prevent a request supplying its own values.
|
|
|
|
Additional restrictions can be placed on the CA certificate itself.
|
|
For example if the CA certificate has:
|
|
|
|
basicConstraints = CA:TRUE, pathlen:0
|
|
|
|
then even if a certificate is issued with CA:TRUE it will not be valid.
|
|
|
|
=head1 HISTORY
|
|
|
|
Since OpenSSL 1.1.1, the program follows RFC5280. Specifically,
|
|
certificate validity period (specified by any of B<-startdate>,
|
|
B<-enddate> and B<-days>) will be encoded as UTCTime if the dates are
|
|
earlier than year 2049 (included), and as GeneralizedTime if the dates
|
|
are in year 2050 or later.
|
|
|
|
OpenSSL 1.1.1 introduced a new random generator (CSPRNG) with an improved
|
|
seeding mechanism. The new seeding mechanism makes it unnecessary to
|
|
define a RANDFILE for saving and restoring randomness. This option is
|
|
retained mainly for compatibility reasons.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<openssl(1)>,
|
|
L<openssl-req(1)>,
|
|
L<openssl-spkac(1)>,
|
|
L<openssl-x509(1)>,
|
|
L<CA.pl(1)>,
|
|
L<config(5)>,
|
|
L<x509v3_config(5)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2000-2019 The OpenSSL Project Authors. All Rights Reserved.
|
|
|
|
Licensed under the Apache License 2.0 (the "License"). You may not use
|
|
this file except in compliance with the License. You can obtain a copy
|
|
in the file LICENSE in the source distribution or at
|
|
L<https://www.openssl.org/source/license.html>.
|
|
|
|
=cut
|