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)