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=pod
=head1 NAME
openssl-nseq,
nseq - create or examine a Netscape certificate sequence
=head1 SYNOPSIS
B<openssl> B<nseq>
[B<-help>]
[B<-in filename>]
[B<-out filename>]
[B<-toseq>]
=head1 DESCRIPTION
The B<nseq> command takes a file containing a Netscape certificate
sequence and prints out the certificates contained in it or takes a
file of certificates and converts it into a Netscape certificate
sequence.
=head1 OPTIONS
=over 4
=item B<-help>
Print out a usage message.
=item B<-in filename>
This specifies the input filename to read or standard input if this
option is not specified.
=item B<-out filename>
Specifies the output filename or standard output by default.
=item B<-toseq>
Normally a Netscape certificate sequence will be input and the output
is the certificates contained in it. With the B<-toseq> option the
situation is reversed: a Netscape certificate sequence is created from
a file of certificates.
=back
=head1 EXAMPLES
Output the certificates in a Netscape certificate sequence
openssl nseq -in nseq.pem -out certs.pem
Create a Netscape certificate sequence
openssl nseq -in certs.pem -toseq -out nseq.pem
=head1 NOTES
The B<PEM> encoded form uses the same headers and footers as a certificate:
-----BEGIN CERTIFICATE-----
-----END CERTIFICATE-----
A Netscape certificate sequence is a Netscape specific format that can be sent
to browsers as an alternative to the standard PKCS#7 format when several
certificates are sent to the browser: for example during certificate enrollment.
It is used by Netscape certificate server for example.
=head1 BUGS
This program needs a few more options: like allowing DER or PEM input and
output files and allowing multiple certificate files to be used.
=head1 COPYRIGHT
Copyright 2000-2017 The OpenSSL Project Authors. All Rights Reserved.
Licensed under the Apache License 2.0 (the "License"). You may not use
this file except in compliance with the License. You can obtain a copy
in the file LICENSE in the source distribution or at
L<https://www.openssl.org/source/license.html>.
=cut
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