crl2pkcs7(1ssl)


NAME

   crl2pkcs7 - Create 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]

DESCRIPTION

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

COMMAND OPTIONS

   -inform DER|PEM
       This 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
       This specifies the PKCS#7 structure output format. DER format is
       DER encoded PKCS#7 structure.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.

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

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.

SEE ALSO

   pkcs7(1)





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