CRL
Section: OpenSSL (1)
Updated: 2000-02-08
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NAME
crl - CRL utility
SYNOPSIS
openssl crl
[-inform PEM|DER]
[-outform PEM|DER]
[-text]
[-in filename]
[-out filename]
[-noout]
[-hash]
[-issuer]
[-lastupdate]
[-nextupdate]
[-CAfile file]
[-CApath dir]
DESCRIPTION
The crl command processes CRL files in DER or PEM format.
COMMAND OPTIONS
- -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 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.
- -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.
- -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 -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)