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CRL(1)					     OpenSSL					   CRL(1)

       crl - CRL utility

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

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

       -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

       -in filename
	   This specifies the input filename to read from or standard input if this option is not

       -out filename
	   specifies the output filename to write to or standard output by default.

	   print out the CRL in text form.

	   don't output the encoded version of the CRL.

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

	   output the issuer name.

	   output the lastUpdate field.

	   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 -text -noout

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

       crl2pkcs7(1), ca(1), x509(1)

1.0.1e					    2013-02-11					   CRL(1)
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