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=pod
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=head1 NAME
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pkeyparam - public key algorithm parameter processing tool
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=head1 SYNOPSIS
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B<openssl> B<pkeyparam>
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[B<-in filename>]
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[B<-out filename>]
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[B<-text>]
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[B<-noout>]
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[B<-engine id>]
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=head1 DESCRIPTION
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The B<pkey> command processes public or private keys. They can be converted
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between various forms and their components printed out.
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=head1 COMMAND OPTIONS
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=over 4
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=item B<-in filename>
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This specifies the input filename to read parameters from or standard input if
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this option is not specified.
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=item B<-out filename>
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This specifies the output filename to write parameters to or standard output if
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this option is not specified.
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=item B<-text>
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prints out the parameters in plain text in addition to the encoded version.
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=item B<-noout>
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do not output the encoded version of the parameters.
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=item B<-engine id>
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specifying an engine (by its unique B<id> string) will cause B<pkeyparam>
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to attempt to obtain a functional reference to the specified engine,
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thus initialising it if needed. The engine will then be set as the default
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for all available algorithms.
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=back
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=head1 EXAMPLE
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Print out text version of parameters:
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openssl pkeyparam -in param.pem -text
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=head1 NOTES
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There are no B<-inform> or B<-outform> options for this command because only
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PEM format is supported because the key type is determined by the PEM headers.
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=head1 SEE ALSO
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L<genpkey(1)|genpkey(1)>, L<rsa(1)|rsa(1)>, L<pkcs8(1)|pkcs8(1)>,
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L<dsa(1)|dsa(1)>, L<genrsa(1)|genrsa(1)>, L<gendsa(1)|gendsa(1)>
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=cut
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