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crl

NAME

openssl-crl, crl - CRL utility

SYNOPSIS

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]

DESCRIPTION

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

OPTIONS

  • -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.

NOTES

The PEM CRL format uses the header and footer lines:

-----BEGIN X509 CRL-----
-----END X509 CRL-----

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 -inform DER -text -noout

BUGS

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

SEE ALSO

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.