Man1 - crl.1ssl

openssl-crl, crl - CRL utility

openssl crl [*-help*] [*-inform PEM|DER*] [*-outform PEM|DER*] [*-text*] [*-in filename*] [*-out filename*] [*-nameopt option*] [*-noout*] [*-hash*] [*-issuer*] [*-lastupdate*] [*-nextupdate*] [*-CAfile file*] [*-CApath dir*]

The crl command processes CRL files in DER or PEM format.

-help

Print out a usage message.

-inform DER|PEM

This specifies the input format. DER format is DER encoded CRL structure. PEM (the default) is a base64 encoded version of the DER form with header and footer lines.

-outform DER|PEM

This specifies the output format, the options have the same meaning and default as the -inform option.

-in filename

This specifies the input filename to read from or standard input if this option is not specified.

-out filename

Specifies the output filename to write to or standard output by default.

-text

Print out the CRL in text form.

-nameopt option

Option which determines how the subject or issuer names are displayed. See the description of -nameopt in x509 (1).

-noout

Don’t output the encoded version of the CRL.

-hash

Output a hash of the issuer name. This can be use to lookup CRLs in a directory by issuer name.

-hash_old

Outputs the hash of the CRL issuer name using the older algorithm as used by OpenSSL before version 1.0.0.

-issuer

Output the issuer name.

-lastupdate

Output the lastUpdate field.

-nextupdate

Output the nextUpdate field.

-CAfile file

Verify the signature on a CRL by looking up the issuing certificate in file.

-CApath dir

Verify the signature on a CRL by looking up the issuing certificate in dir. This directory must be a standard certificate directory: that is a hash of each subject name (using x509 -hash) should be linked to each certificate.

The PEM CRL format uses the header and footer lines:

–—BEGIN X509 CRL–— –—END X509 CRL–—

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 -inform DER -text -noout

Ideally it should be possible to create a CRL using appropriate options and files too.

crl2pkcs7 (1), ca (1), x509 (1)

Copyright 2000-2018 The OpenSSL Project Authors. All Rights Reserved.

Licensed under the OpenSSL license (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 https://www.openssl.org/source/license.html.