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133 .\" ========================================================================
136 .TH CRL 1 "2021-03-25" "1.1.1k" "OpenSSL"
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142 openssl\-crl, crl \- CRL utility
144 .IX Header "SYNOPSIS"
145 \&\fBopenssl\fR \fBcrl\fR
147 [\fB\-inform PEM|DER\fR]
148 [\fB\-outform PEM|DER\fR]
150 [\fB\-in filename\fR]
151 [\fB\-out filename\fR]
152 [\fB\-nameopt option\fR]
158 [\fB\-CAfile file\fR]
161 .IX Header "DESCRIPTION"
162 The \fBcrl\fR command processes \s-1CRL\s0 files in \s-1DER\s0 or \s-1PEM\s0 format.
167 Print out a usage message.
168 .IP "\fB\-inform DER|PEM\fR" 4
169 .IX Item "-inform DER|PEM"
170 This specifies the input format. \fB\s-1DER\s0\fR format is \s-1DER\s0 encoded \s-1CRL\s0
171 structure. \fB\s-1PEM\s0\fR (the default) is a base64 encoded version of
172 the \s-1DER\s0 form with header and footer lines.
173 .IP "\fB\-outform DER|PEM\fR" 4
174 .IX Item "-outform DER|PEM"
175 This specifies the output format, the options have the same meaning and default
176 as the \fB\-inform\fR option.
177 .IP "\fB\-in filename\fR" 4
178 .IX Item "-in filename"
179 This specifies the input filename to read from or standard input if this
180 option is not specified.
181 .IP "\fB\-out filename\fR" 4
182 .IX Item "-out filename"
183 Specifies the output filename to write to or standard output by
187 Print out the \s-1CRL\s0 in text form.
188 .IP "\fB\-nameopt option\fR" 4
189 .IX Item "-nameopt option"
190 Option which determines how the subject or issuer names are displayed. See
191 the description of \fB\-nameopt\fR in \fBx509\fR\|(1).
192 .IP "\fB\-noout\fR" 4
194 Don't output the encoded version of the \s-1CRL.\s0
197 Output a hash of the issuer name. This can be use to lookup CRLs in
198 a directory by issuer name.
199 .IP "\fB\-hash_old\fR" 4
201 Outputs the \*(L"hash\*(R" of the \s-1CRL\s0 issuer name using the older algorithm
202 as used by OpenSSL before version 1.0.0.
203 .IP "\fB\-issuer\fR" 4
205 Output the issuer name.
206 .IP "\fB\-lastupdate\fR" 4
207 .IX Item "-lastupdate"
208 Output the lastUpdate field.
209 .IP "\fB\-nextupdate\fR" 4
210 .IX Item "-nextupdate"
211 Output the nextUpdate field.
212 .IP "\fB\-CAfile file\fR" 4
213 .IX Item "-CAfile file"
214 Verify the signature on a \s-1CRL\s0 by looking up the issuing certificate in
216 .IP "\fB\-CApath dir\fR" 4
217 .IX Item "-CApath dir"
218 Verify the signature on a \s-1CRL\s0 by looking up the issuing certificate in
219 \&\fBdir\fR. This directory must be a standard certificate directory: that
220 is a hash of each subject name (using \fBx509 \-hash\fR) should be linked
224 The \s-1PEM CRL\s0 format uses the header and footer lines:
227 \& \-\-\-\-\-BEGIN X509 CRL\-\-\-\-\-
228 \& \-\-\-\-\-END X509 CRL\-\-\-\-\-
231 .IX Header "EXAMPLES"
232 Convert a \s-1CRL\s0 file from \s-1PEM\s0 to \s-1DER:\s0
235 \& openssl crl \-in crl.pem \-outform DER \-out crl.der
238 Output the text form of a \s-1DER\s0 encoded certificate:
241 \& openssl crl \-in crl.der \-inform DER \-text \-noout
245 Ideally it should be possible to create a \s-1CRL\s0 using appropriate options
248 .IX Header "SEE ALSO"
249 \&\fBcrl2pkcs7\fR\|(1), \fBca\fR\|(1), \fBx509\fR\|(1)
251 .IX Header "COPYRIGHT"
252 Copyright 2000\-2018 The OpenSSL Project Authors. All Rights Reserved.
254 Licensed under the OpenSSL license (the \*(L"License\*(R"). You may not use
255 this file except in compliance with the License. You can obtain a copy
256 in the file \s-1LICENSE\s0 in the source distribution or at
257 <https://www.openssl.org/source/license.html>.