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|
=pod
=head1 NAME
crl - CRL utility
=head1 SYNOPSIS
B<openssl> B<crl>
[B<-inform PEM|DER>]
[B<-outform PEM|DER>]
[B<-text>]
[B<-in filename>]
[B<-out filename>]
[B<-nameopt option>]
[B<-noout>]
[B<-hash>]
[B<-issuer>]
[B<-lastupdate>]
[B<-nextupdate>]
[B<-CAfile file>]
[B<-CApath dir>]
=head1 DESCRIPTION
The B<crl> command processes CRL files in DER or PEM format.
=head1 COMMAND OPTIONS
=over 4
=item B<-inform DER|PEM>
This specifies the input format. B<DER> format is DER encoded CRL
structure. B<PEM> (the default) is a base64 encoded version of
the DER form with header and footer lines.
=item B<-outform DER|PEM>
This specifies the output format, the options have the same meaning as the
B<-inform> option.
=item B<-in filename>
This specifies the input filename to read from or standard input if this
option is not specified.
=item B<-out filename>
specifies the output filename to write to or standard output by
default.
=item B<-text>
print out the CRL in text form.
=item B<-nameopt option>
option which determines how the subject or issuer names are displayed. See
the description of B<-nameopt> in L<x509(1)|x509(1)>.
=item B<-noout>
don't output the encoded version of the CRL.
=item B<-hash>
output a hash of the issuer name. This can be use to lookup CRLs in
a directory by issuer name.
=item B<-hash_old>
outputs the "hash" of the CRL issuer name using the older algorithm
as used by OpenSSL versions before 1.0.0.
=item B<-issuer>
output the issuer name.
=item B<-lastupdate>
output the lastUpdate field.
=item B<-nextupdate>
output the nextUpdate field.
=item B<-CAfile file>
verify the signature on a CRL by looking up the issuing certificate in
B<file>
=item B<-CApath dir>
verify the signature on a CRL by looking up the issuing certificate in
B<dir>. This directory must be a standard certificate directory: that
is a hash of each subject name (using B<x509 -hash>) should be linked
to each certificate.
=back
=head1 NOTES
The PEM CRL format uses the header and footer lines:
-----BEGIN X509 CRL-----
-----END X509 CRL-----
=head1 EXAMPLES
Convert a CRL file from PEM to DER:
openssl crl -in crl.pem -outform DER -out crl.der
Output the text form of a DER encoded certificate:
openssl crl -in crl.der -text -noout
=head1 BUGS
Ideally it should be possible to create a CRL using appropriate options
and files too.
=head1 SEE ALSO
L<crl2pkcs7(1)|crl2pkcs7(1)>, L<ca(1)|ca(1)>, L<x509(1)|x509(1)>
=cut
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