1=pod 2 3=head1 NAME 4 5openssl-crl2pkcs7, 6crl2pkcs7 - Create a PKCS#7 structure from a CRL and certificates 7 8=head1 SYNOPSIS 9 10B<openssl> B<crl2pkcs7> 11[B<-help>] 12[B<-inform PEM|DER>] 13[B<-outform PEM|DER>] 14[B<-in filename>] 15[B<-out filename>] 16[B<-certfile filename>] 17[B<-nocrl>] 18 19=head1 DESCRIPTION 20 21The B<crl2pkcs7> command takes an optional CRL and one or more 22certificates and converts them into a PKCS#7 degenerate "certificates 23only" structure. 24 25=head1 OPTIONS 26 27=over 4 28 29=item B<-help> 30 31Print out a usage message. 32 33=item B<-inform DER|PEM> 34 35This specifies the CRL input format. B<DER> format is DER encoded CRL 36structure.B<PEM> (the default) is a base64 encoded version of 37the DER form with header and footer lines. The default format is PEM. 38 39=item B<-outform DER|PEM> 40 41This specifies the PKCS#7 structure output format. B<DER> format is DER 42encoded PKCS#7 structure.B<PEM> (the default) is a base64 encoded version of 43the DER form with header and footer lines. The default format is PEM. 44 45=item B<-in filename> 46 47This specifies the input filename to read a CRL from or standard input if this 48option is not specified. 49 50=item B<-out filename> 51 52Specifies the output filename to write the PKCS#7 structure to or standard 53output by default. 54 55=item B<-certfile filename> 56 57Specifies a filename containing one or more certificates in B<PEM> format. 58All certificates in the file will be added to the PKCS#7 structure. This 59option can be used more than once to read certificates from multiple 60files. 61 62=item B<-nocrl> 63 64Normally a CRL is included in the output file. With this option no CRL is 65included in the output file and a CRL is not read from the input file. 66 67=back 68 69=head1 EXAMPLES 70 71Create a PKCS#7 structure from a certificate and CRL: 72 73 openssl crl2pkcs7 -in crl.pem -certfile cert.pem -out p7.pem 74 75Creates a PKCS#7 structure in DER format with no CRL from several 76different certificates: 77 78 openssl crl2pkcs7 -nocrl -certfile newcert.pem 79 -certfile demoCA/cacert.pem -outform DER -out p7.der 80 81=head1 NOTES 82 83The output file is a PKCS#7 signed data structure containing no signers and 84just certificates and an optional CRL. 85 86This utility can be used to send certificates and CAs to Netscape as part of 87the certificate enrollment process. This involves sending the DER encoded output 88as MIME type application/x-x509-user-cert. 89 90The B<PEM> encoded form with the header and footer lines removed can be used to 91install user certificates and CAs in MSIE using the Xenroll control. 92 93=head1 SEE ALSO 94 95L<pkcs7(1)> 96 97=head1 COPYRIGHT 98 99Copyright 2000-2021 The OpenSSL Project Authors. All Rights Reserved. 100 101Licensed under the OpenSSL license (the "License"). You may not use 102this file except in compliance with the License. You can obtain a copy 103in the file LICENSE in the source distribution or at 104L<https://www.openssl.org/source/license.html>. 105 106=cut 107