mirror of
https://github.com/openssl/openssl.git
synced 2024-12-03 05:41:46 +08:00
777182a0c7
Add P12 format description. Remove PEM NOTES sections; it's in openssl.pod Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org> Reviewed-by: Richard Levitte <levitte@openssl.org> (Merged from https://github.com/openssl/openssl/pull/10142)
186 lines
5.2 KiB
Plaintext
186 lines
5.2 KiB
Plaintext
=pod
|
|
|
|
=head1 NAME
|
|
|
|
openssl-ec - EC key processing
|
|
|
|
=head1 SYNOPSIS
|
|
|
|
B<openssl> B<ec>
|
|
[B<-help>]
|
|
[B<-inform> B<DER>|B<PEM>]
|
|
[B<-outform> B<DER>|B<PEM>]
|
|
[B<-in> I<filename>]
|
|
[B<-passin> I<arg>]
|
|
[B<-out> I<filename>]
|
|
[B<-passout> I<arg>]
|
|
[B<-des>]
|
|
[B<-des3>]
|
|
[B<-idea>]
|
|
[B<-text>]
|
|
[B<-noout>]
|
|
[B<-param_out>]
|
|
[B<-pubin>]
|
|
[B<-pubout>]
|
|
[B<-conv_form> I<arg>]
|
|
[B<-param_enc> I<arg>]
|
|
[B<-no_public>]
|
|
[B<-check>]
|
|
[B<-engine> I<id>]
|
|
|
|
=for openssl ifdef engine
|
|
|
|
=head1 DESCRIPTION
|
|
|
|
The L<openssl-ec(1)> command processes EC keys. They can be converted between
|
|
various forms and their components printed out. B<Note> OpenSSL uses the
|
|
private key format specified in 'SEC 1: Elliptic Curve Cryptography'
|
|
(http://www.secg.org/). To convert an OpenSSL EC private key into the
|
|
PKCS#8 private key format use the L<openssl-pkcs8(1)> command.
|
|
|
|
=head1 OPTIONS
|
|
|
|
=over 4
|
|
|
|
=item B<-help>
|
|
|
|
Print out a usage message.
|
|
|
|
=item B<-inform> B<DER>|B<PEM>, B<-outform> B<DER>|B<PEM>
|
|
|
|
The input and formats; the default is B<PEM>.
|
|
See L<openssl(1)/Format Options> for details.
|
|
|
|
Private keys are an SEC1 private key or PKCS#8 format.
|
|
Public keys are a B<SubjectPublicKeyInfo> as specified in IETF RFC 3280.
|
|
|
|
=item B<-in> I<filename>
|
|
|
|
This specifies the input filename to read a key from or standard input if this
|
|
option is not specified. If the key is encrypted a pass phrase will be
|
|
prompted for.
|
|
|
|
=item B<-out> I<filename>
|
|
|
|
This specifies the output filename to write a key to or standard output by
|
|
is not specified. If any encryption options are set then a pass phrase will be
|
|
prompted for. The output filename should B<not> be the same as the input
|
|
filename.
|
|
|
|
=item B<-passin> I<arg>, B<-passout> I<arg>
|
|
|
|
The password source for the input and output file.
|
|
For more information about the format of B<arg>
|
|
see L<openssl(1)/Pass Phrase Options>.
|
|
|
|
=item B<-des>|B<-des3>|B<-idea>
|
|
|
|
These options encrypt the private key with the DES, triple DES, IDEA or
|
|
any other cipher supported by OpenSSL before outputting it. A pass phrase is
|
|
prompted for.
|
|
If none of these options is specified the key is written in plain text. This
|
|
means that using this command to read in an encrypted key with no
|
|
encryption option can be used to remove the pass phrase from a key, or by
|
|
setting the encryption options it can be use to add or change the pass phrase.
|
|
These options can only be used with PEM format output files.
|
|
|
|
=item B<-text>
|
|
|
|
Prints out the public, private key components and parameters.
|
|
|
|
=item B<-noout>
|
|
|
|
This option prevents output of the encoded version of the key.
|
|
|
|
=item B<-pubin>
|
|
|
|
By default, a private key is read from the input file. With this option a
|
|
public key is read instead.
|
|
|
|
=item B<-pubout>
|
|
|
|
By default a private key is output. With this option a public
|
|
key will be output instead. This option is automatically set if the input is
|
|
a public key.
|
|
|
|
=item B<-conv_form> I<arg>
|
|
|
|
This specifies how the points on the elliptic curve are converted
|
|
into octet strings. Possible values are: B<compressed> (the default
|
|
value), B<uncompressed> and B<hybrid>. For more information regarding
|
|
the point conversion forms please read the X9.62 standard.
|
|
B<Note> Due to patent issues the B<compressed> option is disabled
|
|
by default for binary curves and can be enabled by defining
|
|
the preprocessor macro B<OPENSSL_EC_BIN_PT_COMP> at compile time.
|
|
|
|
=item B<-param_enc> I<arg>
|
|
|
|
This specifies how the elliptic curve parameters are encoded.
|
|
Possible value are: B<named_curve>, i.e. the ec parameters are
|
|
specified by an OID, or B<explicit> where the ec parameters are
|
|
explicitly given (see RFC 3279 for the definition of the
|
|
EC parameters structures). The default value is B<named_curve>.
|
|
B<Note> the B<implicitlyCA> alternative, as specified in RFC 3279,
|
|
is currently not implemented in OpenSSL.
|
|
|
|
=item B<-no_public>
|
|
|
|
This option omits the public key components from the private key output.
|
|
|
|
=item B<-check>
|
|
|
|
This option checks the consistency of an EC private or public key.
|
|
|
|
=item B<-engine> I<id>
|
|
|
|
Specifying an engine (by its unique I<id> string) will cause this command
|
|
to attempt to obtain a functional reference to the specified engine,
|
|
thus initialising it if needed. The engine will then be set as the default
|
|
for all available algorithms.
|
|
|
|
=back
|
|
|
|
=head1 EXAMPLES
|
|
|
|
To encrypt a private key using triple DES:
|
|
|
|
openssl ec -in key.pem -des3 -out keyout.pem
|
|
|
|
To convert a private key from PEM to DER format:
|
|
|
|
openssl ec -in key.pem -outform DER -out keyout.der
|
|
|
|
To print out the components of a private key to standard output:
|
|
|
|
openssl ec -in key.pem -text -noout
|
|
|
|
To just output the public part of a private key:
|
|
|
|
openssl ec -in key.pem -pubout -out pubkey.pem
|
|
|
|
To change the parameters encoding to B<explicit>:
|
|
|
|
openssl ec -in key.pem -param_enc explicit -out keyout.pem
|
|
|
|
To change the point conversion form to B<compressed>:
|
|
|
|
openssl ec -in key.pem -conv_form compressed -out keyout.pem
|
|
|
|
=head1 SEE ALSO
|
|
|
|
L<openssl(1)>,
|
|
L<openssl-ecparam(1)>,
|
|
L<openssl-dsa(1)>,
|
|
L<openssl-rsa(1)>
|
|
|
|
=head1 COPYRIGHT
|
|
|
|
Copyright 2003-2019 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
|