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crl2pkcs7(1ssl)


NAME

  crl2pkcs7 - Creates a PKCS#7 structure from a CRL and certificates.


SYNOPSIS

  openssl crl2pkcs7 [-inform PEM | DER] [-outform PEM | DER] [-in filename]
  [-out filename] [-certfile filename] [-nocrl]


OPTIONS

  -inform DER|PEM
	  Specifies the CRL 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
	  Specifies the PKCS#7 structure output format. The DER format is DER
	  encoded PKCS#7 structure. The PEM (the default) is a base64 encoded
	  version of the DER form with header and footer lines.

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

  -out filename
	  Specifies the output filename to write the PKCS#7 structure to or
	  standard output by default.

  -certfile filename
	  Specifies a filename containing one or more certificates in PEM
	  format. All certificates in the file will be added to the PKCS#7
	  structure. This option can be used more than once to read
	  certificates form multiple files.

  -nocrl  Normally a CRL is included in the output file. With this option no
	  CRL is included in the output file and a CRL is not read from the
	  input file.


DESCRIPTION

  The crl2pkcs7 command takes an optional CRL and one or more certificates
  and converts them into a PKCS#7 degenerate certificates only structure.


NOTES

  The output file is a PKCS#7 signed data structure containing no signers and
  just certificates and an optional CRL.

  This utility can be used to send certificates and CAs to Netscape as part
  of the certificate enrollment process. This involves sending the DER
  encoded output as MIME type application/x-x509-user-cert.

  The PEM encoded form with the header and footer lines removed can be used
  to install user certificates and CAs in MSIE using the Xenroll control.


EXAMPLES

  Create a PKCS#7 structure from a certificate and CRL:

	openssl crl2pkcs7 -in crl.pem -certfile cert.pem -out p7.pem

  Creates a PKCS#7 structure in DER format with no CRL from several different
  certificates:

	openssl crl2pkcs7 -nocrl -certfile newcert.pem
	       -certfile demoCA/cacert.pem -outform DER -out p7.der


SEE ALSO

  Commands: pkcs7(1ssl)

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