28 The B<crl> command processes CRL files in DER or PEM format.
36 Print out a usage message.
38 =item B<-inform DER|PEM>
40 This specifies the input format. B<DER> format is DER encoded CRL
41 structure. B<PEM> (the default) is a base64 encoded version of
42 the DER form with header and footer lines.
44 =item B<-outform DER|PEM>
46 This specifies the output format, the options have the same meaning and default
47 as the B<-inform> option.
51 This specifies the input filename to read from or standard input if this
52 option is not specified.
54 =item B<-out filename>
56 Specifies the output filename to write to or standard output by
61 Print out the CRL in text form.
63 =item B<-nameopt option>
65 Option which determines how the subject or issuer names are displayed. See
66 the description of B<-nameopt> in L<x509(1)>.
70 Don't output the encoded version of the CRL.
74 Output a hash of the issuer name. This can be use to lookup CRLs in
75 a directory by issuer name.
79 Outputs the "hash" of the CRL issuer name using the older algorithm
80 as used by OpenSSL before version 1.0.0.
84 Output the issuer name.
88 Output the lastUpdate field.
92 Output the nextUpdate field.
96 Verify the signature on a CRL by looking up the issuing certificate in
101 Verify the signature on a CRL by looking up the issuing certificate in
102 B<dir>. This directory must be a standard certificate directory: that
103 is a hash of each subject name (using B<x509 -hash>) should be linked
110 The PEM CRL format uses the header and footer lines:
112 -----BEGIN X509 CRL-----
113 -----END X509 CRL-----
117 Convert a CRL file from PEM to DER:
119 openssl crl -in crl.pem -outform DER -out crl.der
121 Output the text form of a DER encoded certificate:
123 openssl crl -in crl.der -text -noout
127 Ideally it should be possible to create a CRL using appropriate options
132 L<crl2pkcs7(1)>, L<ca(1)>, L<x509(1)>
136 Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
138 Licensed under the OpenSSL license (the "License"). You may not use
139 this file except in compliance with the License. You can obtain a copy
140 in the file LICENSE in the source distribution or at
141 L<https://www.openssl.org/source/license.html>.