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author | Rich Salz <rsalz@akamai.com> | 2019-10-12 17:45:56 -0400 |
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committer | Tomas Mraz <tmraz@fedoraproject.org> | 2020-01-07 18:52:25 +0100 |
commit | 018aaeb47874272e157d35c05c68e826301d57f5 (patch) | |
tree | 207e08dcd0dfeef4416edaa850d462b0c99e4e8b /doc/man1/openssl-ec.pod.in | |
parent | 9484b67dfb0fc69326b4d94c2040751b205baa24 (diff) |
Refactor -engine documentation
Common wording courtesy Richard Levitte.
Reviewed-by: Dmitry Belyavskiy <beldmit@gmail.com>
Reviewed-by: Tomas Mraz <tmraz@fedoraproject.org>
(Merged from https://github.com/openssl/openssl/pull/10128)
Diffstat (limited to 'doc/man1/openssl-ec.pod.in')
-rw-r--r-- | doc/man1/openssl-ec.pod.in | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/doc/man1/openssl-ec.pod.in b/doc/man1/openssl-ec.pod.in new file mode 100644 index 0000000000..d20b49afcf --- /dev/null +++ b/doc/man1/openssl-ec.pod.in @@ -0,0 +1,185 @@ +=pod + +=begin comment +{- join("\n", @autowarntext) -} + +=end comment + +=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>] +{- $OpenSSL::safe::opt_engine_synopsis -} + +=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. + +{- $OpenSSL::safe::opt_engine_item -} + +=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 |