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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)
688 lines
22 KiB
Plaintext
688 lines
22 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-req - PKCS#10 certificate request and certificate generating utility
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=head1 SYNOPSIS
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B<openssl> B<req>
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[B<-help>]
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[B<-inform> B<DER>|B<PEM>]
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[B<-outform> B<DER>|B<PEM>]
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[B<-in> I<filename>]
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[B<-passin> I<arg>]
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[B<-out> I<filename>]
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[B<-passout> I<arg>]
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[B<-text>]
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[B<-pubkey>]
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[B<-noout>]
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[B<-verify>]
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[B<-modulus>]
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[B<-new>]
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[B<-newkey> I<arg>]
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[B<-pkeyopt> I<opt>:I<value>]
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[B<-nodes>]
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[B<-key> I<filename>]
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[B<-keyform> B<DER>|B<PEM>]
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[B<-keyout> I<filename>]
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[B<-keygen_engine> I<id>]
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[B<-I<digest>>]
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[B<-config> I<filename>]
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[B<-multivalue-rdn>]
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[B<-x509>]
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[B<-days> I<n>]
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[B<-set_serial> I<n>]
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[B<-newhdr>]
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[B<-addext> I<ext>]
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[B<-extensions> I<section>]
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[B<-reqexts> I<section>]
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[B<-precert>]
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[B<-utf8>]
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[B<-reqopt>]
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[B<-subject>]
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[B<-subj> I<arg>]
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[B<-sigopt> I<nm>:I<v>]
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[B<-batch>]
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[B<-verbose>]
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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_name_synopsis -}
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{- $OpenSSL::safe::opt_r_synopsis -}
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{- $OpenSSL::safe::opt_engine_synopsis -}
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=for openssl ifdef engine keygen_engine sm2-id sm2-hex-id
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=head1 DESCRIPTION
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This command primarily creates and processes certificate requests
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in PKCS#10 format. It can additionally create self signed certificates
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for use as root CAs for example.
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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<-inform> B<DER>|B<PEM>, B<-outform> B<DER>|B<PEM>
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The input and formats; the default is B<PEM>.
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See L<openssl(1)/Format Options> for details.
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The data is a PKCS#10 object.
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=item B<-in> I<filename>
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This specifies the input filename to read a request from or standard input
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if this option is not specified. A request is only read if the creation
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options (B<-new> and B<-newkey>) are not specified.
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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<-passin> I<arg>, B<-passout> I<arg>
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The password source for the input and output file.
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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<-out> I<filename>
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This specifies the output filename to write to or standard output by
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default.
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=item B<-text>
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Prints out the certificate request in text form.
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=item B<-subject>
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Prints out the request subject (or certificate subject if B<-x509> is
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specified)
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=item B<-pubkey>
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Outputs the public key.
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=item B<-noout>
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This option prevents output of the encoded version of the request.
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=item B<-modulus>
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This option prints out the value of the modulus of the public key
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contained in the request.
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=item B<-verify>
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Verifies the signature on the request.
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=item B<-new>
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This option generates a new certificate request. It will prompt
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the user for the relevant field values. The actual fields
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prompted for and their maximum and minimum sizes are specified
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in the configuration file and any requested extensions.
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If the B<-key> option is not used it will generate a new RSA private
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key using information specified in the configuration file.
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=item B<-newkey> I<arg>
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This option creates a new certificate request and a new private
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key. The argument takes one of several forms.
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B<rsa:>I<nbits>, where
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I<nbits> is the number of bits, generates an RSA key I<nbits>
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in size. If I<nbits> is omitted, i.e. B<-newkey> I<rsa> specified,
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the default key size, specified in the configuration file is used.
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All other algorithms support the B<-newkey> I<alg>:I<file> form, where file
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may be an algorithm parameter file, created with C<openssl genpkey -genparam>
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or an X.509 certificate for a key with appropriate algorithm.
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B<param:>I<file> generates a key using the parameter file or certificate
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I<file>, the algorithm is determined by the parameters. I<algname>:I<file>
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use algorithm I<algname> and parameter file I<file>: the two algorithms must
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match or an error occurs. I<algname> just uses algorithm I<algname>, and
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parameters, if necessary should be specified via B<-pkeyopt> parameter.
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B<dsa:>I<filename> generates a DSA key using the parameters
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in the file I<filename>. B<ec:>I<filename> generates EC key (usable both with
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ECDSA or ECDH algorithms), B<gost2001:>I<filename> generates GOST R
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34.10-2001 key (requires B<gost> engine configured in the configuration
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file). If just B<gost2001> is specified a parameter set should be
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specified by B<-pkeyopt> I<paramset:X>
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=item B<-pkeyopt> I<opt>:I<value>
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Set the public key algorithm option I<opt> to I<value>. The precise set of
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options supported depends on the public key algorithm used and its
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implementation.
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See L<openssl-genpkey(1)/KEY GENERATION OPTIONS> for more details.
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=item B<-key> I<filename>
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This specifies the file to read the private key from. It also
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accepts PKCS#8 format private keys for PEM format files.
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=item B<-keyform> B<DER>|B<PEM>
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The format of the private key; the default is B<PEM>.
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See L<openssl(1)/Format Options> for details.
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=item B<-keyout> I<filename>
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This gives the filename to write the newly created private key to.
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If this option is not specified then the filename present in the
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configuration file is used.
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=item B<-nodes>
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If this option is specified then if a private key is created it
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will not be encrypted.
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=item B<-I<digest>>
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This specifies the message digest to sign the request.
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Any digest supported by the OpenSSL B<dgst> command can be used.
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This overrides the digest algorithm specified in
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the configuration file.
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Some public key algorithms may override this choice. For instance, DSA
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signatures always use SHA1, GOST R 34.10 signatures always use
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GOST R 34.11-94 (B<-md_gost94>), Ed25519 and Ed448 never use any digest.
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=item B<-config> I<filename>
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This allows an alternative configuration file to be specified.
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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<-subj> I<arg>
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Sets subject name for new request or supersedes the subject name
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when processing a 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 \ (backslash), and whitespace is retained.
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Empty values are permitted, but the corresponding type will not be included
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in the request.
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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 -multi-rdn is not used then the UID value is C<123456+CN=John Doe>.
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=item B<-x509>
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This option outputs a self signed certificate instead of a certificate
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request. This is typically used to generate a test certificate or
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a self signed root CA. The extensions added to the certificate
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(if any) are specified in the configuration file. Unless specified
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using the B<-set_serial> option, a large random number will be used for
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the serial number.
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If existing request is specified with the B<-in> option, it is converted
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to the self signed certificate otherwise new request is created.
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=item B<-days> I<n>
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When the B<-x509> option is being used this specifies the number of
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days to certify the certificate for, otherwise it is ignored. I<n> should
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be a positive integer. The default is 30 days.
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=item B<-set_serial> I<n>
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Serial number to use when outputting a self signed certificate. This
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may be specified as a decimal value or a hex value if preceded by C<0x>.
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=item B<-addext> I<ext>
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Add a specific extension to the certificate (if the B<-x509> option is
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present) or certificate request. The argument must have the form of
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a key=value pair as it would appear in a config file.
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This option can be given multiple times.
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=item B<-extensions> I<section>
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=item B<-reqexts> I<section>
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These options specify alternative sections to include certificate
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extensions (if the B<-x509> option is present) or certificate
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request extensions. This allows several different sections to
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be used in the same configuration file to specify requests for
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a variety of purposes.
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=item B<-precert>
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A poison extension will be added to the certificate, making it a
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"pre-certificate" (see RFC6962). This can be submitted to Certificate
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Transparency logs in order to obtain signed certificate timestamps (SCTs).
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These SCTs can then be embedded into the pre-certificate as an extension, before
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removing the poison and signing the certificate.
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This implies the B<-new> flag.
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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<-reqopt> I<option>
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Customise the output format used with B<-text>. The I<option> argument can be
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a single option or multiple options separated by commas.
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See discussion of the B<-certopt> parameter in the L<openssl-x509(1)>
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command.
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=item B<-newhdr>
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Adds the word B<NEW> to the PEM file header and footer lines on the outputted
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request. Some software (Netscape certificate server) and some CAs need this.
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=item B<-batch>
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Non-interactive mode.
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=item B<-verbose>
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Print extra details about the operations being performed.
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=item B<-keygen_engine> I<id>
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Specifies an engine (by its unique I<id> string) which would be used
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for key generation operations.
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=item B<-sm2-id>
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Specify the ID string to use when verifying an SM2 certificate request. The ID
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string is required by the SM2 signature algorithm for signing and verification.
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=item B<-sm2-hex-id>
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Specify a binary ID string to use when verifying an SM2 certificate request. The
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argument for this option is string of hexadecimal digits.
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{- $OpenSSL::safe::opt_name_item -}
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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 CONFIGURATION FILE FORMAT
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The configuration options are specified in the B<req> section of
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the configuration file. As with all configuration files if no
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value is specified in the specific section (i.e. B<req>) then
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the initial unnamed or B<default> section is searched too.
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The options available are described in detail below.
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=over 4
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=item B<input_password output_password>
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The passwords for the input private key file (if present) and
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the output private key file (if one will be created). The
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command line options B<passin> and B<passout> override the
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configuration file values.
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=item B<default_bits>
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Specifies the default key size in bits.
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This option is used in conjunction with the B<-new> option to generate
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a new key. It can be overridden by specifying an explicit key size in
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the B<-newkey> option. The smallest accepted key size is 512 bits. If
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no key size is specified then 2048 bits is used.
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=item B<default_keyfile>
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This is the default filename to write a private key to. If not
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specified the key is written to standard output. This can be
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overridden by the B<-keyout> option.
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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<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.
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It is used for private key generation.
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=item B<encrypt_key>
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If this is set to B<no> then if a private key is generated it is
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B<not> encrypted. This is equivalent to the B<-nodes> command line
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option. For compatibility B<encrypt_rsa_key> is an equivalent option.
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=item B<default_md>
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This option specifies the digest algorithm to use. Any digest supported by the
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OpenSSL B<dgst> command can be used. This option can be overridden on the
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command line. Certain signing algorithms (i.e. Ed25519 and Ed448) will ignore
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any digest that has been set.
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=item B<string_mask>
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This option masks out the use of certain string types in certain
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fields. Most users will not need to change this option.
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It can be set to several values B<default> which is also the default
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option uses PrintableStrings, T61Strings and BMPStrings if the
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B<pkix> value is used then only PrintableStrings and BMPStrings will
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be used. This follows the PKIX recommendation in RFC2459. If the
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B<utf8only> option is used then only UTF8Strings will be used: this
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is the PKIX recommendation in RFC2459 after 2003. Finally the B<nombstr>
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option just uses PrintableStrings and T61Strings: certain software has
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problems with BMPStrings and UTF8Strings: in particular Netscape.
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=item B<req_extensions>
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This specifies the configuration file section containing a list of
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extensions to add to the certificate request. It can be overridden
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by the B<-reqexts> command line switch. 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<x509_extensions>
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This specifies the configuration file section containing a list of
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extensions to add to certificate generated when the B<-x509> switch
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is used. It can be overridden by the B<-extensions> command line switch.
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=item B<prompt>
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If set to the value B<no> this disables prompting of certificate fields
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and just takes values from the config file directly. It also changes the
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expected format of the B<distinguished_name> and B<attributes> sections.
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=item B<utf8>
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If set to the value B<yes> then field values to be interpreted as UTF8
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strings, by default they are interpreted as ASCII. This means that
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the field 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<attributes>
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This specifies the section containing any request attributes: its format
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is the same as B<distinguished_name>. Typically these may contain the
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challengePassword or unstructuredName types. They are currently ignored
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by OpenSSL's request signing utilities but some CAs might want them.
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=item B<distinguished_name>
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This specifies the section containing the distinguished name fields to
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prompt for when generating a certificate or certificate request. The format
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is described in the next section.
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=back
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=head1 DISTINGUISHED NAME AND ATTRIBUTE SECTION FORMAT
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There are two separate formats for the distinguished name and attribute
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sections. If the B<prompt> option is set to B<no> then these sections
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just consist of field names and values: for example,
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CN=My Name
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OU=My Organization
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emailAddress=someone@somewhere.org
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This allows external programs (e.g. GUI based) to generate a template file with
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all the field names and values and just pass it to this command. An example
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of this kind of configuration file is contained in the B<EXAMPLES> section.
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Alternatively if the B<prompt> option is absent or not set to B<no> then the
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file contains field prompting information. It consists of lines of the form:
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fieldName="prompt"
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fieldName_default="default field value"
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fieldName_min= 2
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fieldName_max= 4
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"fieldName" is the field name being used, for example commonName (or CN).
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The "prompt" string is used to ask the user to enter the relevant
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details. If the user enters nothing then the default value is used if no
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default value is present then the field is omitted. A field can
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still be omitted if a default value is present if the user just
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enters the '.' character.
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The number of characters entered must be between the fieldName_min and
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fieldName_max limits: there may be additional restrictions based
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on the field being used (for example countryName can only ever be
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two characters long and must fit in a PrintableString).
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Some fields (such as organizationName) can be used more than once
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in a DN. This presents a problem because configuration files will
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not recognize the same name occurring twice. To avoid this problem
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if the fieldName contains some characters followed by a full stop
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they will be ignored. So for example a second organizationName can
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be input by calling it "1.organizationName".
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The actual permitted field names are any object identifier short or
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long names. These are compiled into OpenSSL and include the usual
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values such as commonName, countryName, localityName, organizationName,
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organizationalUnitName, stateOrProvinceName. Additionally emailAddress
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is included as well as name, surname, givenName, initials, and dnQualifier.
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Additional object identifiers can be defined with the B<oid_file> or
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B<oid_section> options in the configuration file. Any additional fields
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will be treated as though they were a DirectoryString.
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|
=head1 EXAMPLES
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|
Examine and verify certificate request:
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|
|
|
openssl req -in req.pem -text -verify -noout
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|
|
Create a private key and then generate a certificate request from it:
|
|
|
|
openssl genrsa -out key.pem 2048
|
|
openssl req -new -key key.pem -out req.pem
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|
|
|
The same but just using req:
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|
|
|
openssl req -newkey rsa:2048 -keyout key.pem -out req.pem
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|
|
|
Generate a self signed root certificate:
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|
|
|
openssl req -x509 -newkey rsa:2048 -keyout key.pem -out req.pem
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|
|
|
Create an SM2 private key and then generate a certificate request from it:
|
|
|
|
openssl ecparam -genkey -name SM2 -out sm2.key
|
|
openssl req -new -key sm2.key -out sm2.csr -sm3 -sigopt "sm2_id:1234567812345678"
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|
|
|
Examine and verify an SM2 certificate request:
|
|
|
|
openssl req -verify -in sm2.csr -sm3 -sm2-id 1234567812345678
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|
|
|
Example of a file pointed to by the B<oid_file> option:
|
|
|
|
1.2.3.4 shortName A longer Name
|
|
1.2.3.6 otherName Other longer Name
|
|
|
|
Example of a section pointed to by B<oid_section> making use of variable
|
|
expansion:
|
|
|
|
testoid1=1.2.3.5
|
|
testoid2=${testoid1}.6
|
|
|
|
Sample configuration file prompting for field values:
|
|
|
|
[ req ]
|
|
default_bits = 2048
|
|
default_keyfile = privkey.pem
|
|
distinguished_name = req_distinguished_name
|
|
attributes = req_attributes
|
|
req_extensions = v3_ca
|
|
|
|
dirstring_type = nobmp
|
|
|
|
[ req_distinguished_name ]
|
|
countryName = Country Name (2 letter code)
|
|
countryName_default = AU
|
|
countryName_min = 2
|
|
countryName_max = 2
|
|
|
|
localityName = Locality Name (eg, city)
|
|
|
|
organizationalUnitName = Organizational Unit Name (eg, section)
|
|
|
|
commonName = Common Name (eg, YOUR name)
|
|
commonName_max = 64
|
|
|
|
emailAddress = Email Address
|
|
emailAddress_max = 40
|
|
|
|
[ req_attributes ]
|
|
challengePassword = A challenge password
|
|
challengePassword_min = 4
|
|
challengePassword_max = 20
|
|
|
|
[ v3_ca ]
|
|
|
|
subjectKeyIdentifier=hash
|
|
authorityKeyIdentifier=keyid:always,issuer:always
|
|
basicConstraints = critical, CA:true
|
|
|
|
Sample configuration containing all field values:
|
|
|
|
|
|
[ req ]
|
|
default_bits = 2048
|
|
default_keyfile = keyfile.pem
|
|
distinguished_name = req_distinguished_name
|
|
attributes = req_attributes
|
|
prompt = no
|
|
output_password = mypass
|
|
|
|
[ req_distinguished_name ]
|
|
C = GB
|
|
ST = Test State or Province
|
|
L = Test Locality
|
|
O = Organization Name
|
|
OU = Organizational Unit Name
|
|
CN = Common Name
|
|
emailAddress = test@email.address
|
|
|
|
[ req_attributes ]
|
|
challengePassword = A challenge password
|
|
|
|
Example of giving the most common attributes (subject and extensions)
|
|
on the command line:
|
|
|
|
openssl req -new -subj "/C=GB/CN=foo" \
|
|
-addext "subjectAltName = DNS:foo.co.uk" \
|
|
-addext "certificatePolicies = 1.2.3.4" \
|
|
-newkey rsa:2048 -keyout key.pem -out req.pem
|
|
|
|
|
|
=head1 NOTES
|
|
|
|
The certificate requests generated by B<Xenroll> with MSIE have extensions
|
|
added. It includes the B<keyUsage> extension which determines the type of
|
|
key (signature only or general purpose) and any additional OIDs entered
|
|
by the script in an B<extendedKeyUsage> extension.
|
|
|
|
=head1 DIAGNOSTICS
|
|
|
|
The following messages are frequently asked about:
|
|
|
|
Using configuration from /some/path/openssl.cnf
|
|
Unable to load config info
|
|
|
|
This is followed some time later by:
|
|
|
|
unable to find 'distinguished_name' in config
|
|
problems making Certificate Request
|
|
|
|
The first error message is the clue: it can't find the configuration
|
|
file! Certain operations (like examining a certificate request) don't
|
|
need a configuration file so its use isn't enforced. Generation of
|
|
certificates or requests however does need a configuration file. This
|
|
could be regarded as a bug.
|
|
|
|
Another puzzling message is this:
|
|
|
|
Attributes:
|
|
a0:00
|
|
|
|
this is displayed when no attributes are present and the request includes
|
|
the correct empty B<SET OF> structure (the DER encoding of which is 0xa0
|
|
0x00). If you just see:
|
|
|
|
Attributes:
|
|
|
|
then the B<SET OF> is missing and the encoding is technically invalid (but
|
|
it is tolerated). See the description of the command line option B<-asn1-kludge>
|
|
for more information.
|
|
|
|
=head1 BUGS
|
|
|
|
OpenSSL's handling of T61Strings (aka TeletexStrings) is broken: it effectively
|
|
treats them as ISO-8859-1 (Latin 1), Netscape and MSIE have similar behaviour.
|
|
This can cause problems if you need characters that aren't available in
|
|
PrintableStrings and you don't want to or can't use BMPStrings.
|
|
|
|
As a consequence of the T61String handling the only correct way to represent
|
|
accented characters in OpenSSL is to use a BMPString: unfortunately Netscape
|
|
currently chokes on these. If you have to use accented characters with Netscape
|
|
and MSIE then you currently need to use the invalid T61String form.
|
|
|
|
The current prompting is not very friendly. It doesn't allow you to confirm what
|
|
you've just entered. Other things like extensions in certificate requests are
|
|
statically defined in the configuration file. Some of these: like an email
|
|
address in subjectAltName should be input by the user.
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<openssl(1)>,
|
|
L<openssl-x509(1)>,
|
|
L<openssl-ca(1)>,
|
|
L<openssl-genrsa(1)>,
|
|
L<openssl-gendsa(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
|