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6d382c74b3
This also adds the more flexible and general load_key_cert_crl() as well as helper functions get_passwd(), cleanse(), and clear_free() to be used also in apps/cmp.c etc. Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: David von Oheimb <david.von.oheimb@siemens.com> (Merged from https://github.com/openssl/openssl/pull/11755)
200 lines
5.0 KiB
Plaintext
200 lines
5.0 KiB
Plaintext
=pod
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=begin comment
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{- join("\n", @autowarntext) -}
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=end comment
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=head1 NAME
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openssl-rsa - RSA key processing command
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=head1 SYNOPSIS
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B<openssl> B<rsa>
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[B<-help>]
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[B<-inform> B<DER>|B<PEM>|B<P12>|B<ENGINE>]
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[B<-outform> B<DER>|B<PEM>]
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[B<-in> I<filename>]
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[B<-passin> I<arg>]
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[B<-out> I<filename>]
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[B<-passout> I<arg>]
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[B<-aes128>]
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[B<-aes192>]
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[B<-aes256>]
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[B<-aria128>]
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[B<-aria192>]
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[B<-aria256>]
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[B<-camellia128>]
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[B<-camellia192>]
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[B<-camellia256>]
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[B<-des>]
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[B<-des3>]
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[B<-idea>]
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[B<-text>]
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[B<-noout>]
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[B<-modulus>]
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[B<-check>]
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[B<-pubin>]
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[B<-pubout>]
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[B<-RSAPublicKey_in>]
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[B<-RSAPublicKey_out>]
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{- $OpenSSL::safe::opt_engine_synopsis -}
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{- $OpenSSL::safe::opt_provider_synopsis -}
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=for openssl ifdef pvk-strong pvk-weak pvk-none engine
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=head1 DESCRIPTION
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This command processes RSA keys. They can be converted between
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various forms and their components printed out. B<Note> this command uses the
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traditional SSLeay compatible format for private key encryption: newer
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applications should use the more secure PKCS#8 format using the
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L<openssl-pkcs8(1)> command.
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=head1 OPTIONS
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=over 4
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=item B<-help>
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Print out a usage message.
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=item B<-inform> B<DER>|B<PEM>|B<P12>|B<ENGINE>
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The key input format; the default is B<PEM>.
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The only value with effect is B<ENGINE>; all others have become obsolete.
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See L<openssl(1)/Format Options> for details.
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=item B<-outform> B<DER>|B<PEM>
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The key output format; the default is B<PEM>.
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See L<openssl(1)/Format Options> for details.
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=item B<-inform> B<DER>|B<PEM>
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The data is a PKCS#1 B<RSAPrivateKey> or B<SubjectPublicKey> object.
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On input, PKCS#8 format private keys are also accepted.
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=item B<-in> I<filename>
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This specifies the input filename to read a key from or standard input if this
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option is not specified. If the key is encrypted a pass phrase will be
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prompted for.
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=item B<-passin> I<arg>, B<-passout> I<arg>
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The password source for the input and output file.
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For more information about the format of B<arg>
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see L<openssl(1)/Pass Phrase Options>.
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=item B<-out> I<filename>
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This specifies the output filename to write a key to or standard output if this
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option is not specified. If any encryption options are set then a pass phrase
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will be prompted for. The output filename should B<not> be the same as the input
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filename.
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=item B<-aes128>, B<-aes192>, B<-aes256>, B<-aria128>, B<-aria192>, B<-aria256>, B<-camellia128>, B<-camellia192>, B<-camellia256>, B<-des>, B<-des3>, B<-idea>
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These options encrypt the private key with the specified
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cipher before outputting it. A pass phrase is prompted for.
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If none of these options is specified the key is written in plain text. This
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means that this command can be used to remove the pass phrase from a key
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by not giving any encryption option is given, or to add or change the pass
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phrase by setting them.
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These options can only be used with PEM format output files.
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=item B<-text>
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Prints out the various public or private key components in
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plain text in addition to the encoded version.
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=item B<-noout>
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This option prevents output of the encoded version of the key.
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=item B<-modulus>
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This option prints out the value of the modulus of the key.
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=item B<-check>
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This option checks the consistency of an RSA private key.
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=item B<-pubin>
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By default a private key is read from the input file: with this
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option a public key is read instead.
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=item B<-pubout>
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By default a private key is output: with this option a public
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key will be output instead. This option is automatically set if
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the input is a public key.
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=item B<-RSAPublicKey_in>, B<-RSAPublicKey_out>
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Like B<-pubin> and B<-pubout> except B<RSAPublicKey> format is used instead.
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{- $OpenSSL::safe::opt_engine_item -}
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{- $OpenSSL::safe::opt_provider_item -}
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=back
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=head1 EXAMPLES
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Examples equivalent to these can be found in the documentation for the
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non-deprecated L<openssl-pkey(1)> command.
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To remove the pass phrase on an RSA private key:
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openssl rsa -in key.pem -out keyout.pem
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To encrypt a private key using triple DES:
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openssl rsa -in key.pem -des3 -out keyout.pem
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To convert a private key from PEM to DER format:
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openssl rsa -in key.pem -outform DER -out keyout.der
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To print out the components of a private key to standard output:
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openssl rsa -in key.pem -text -noout
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To just output the public part of a private key:
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openssl rsa -in key.pem -pubout -out pubkey.pem
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Output the public part of a private key in B<RSAPublicKey> format:
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openssl rsa -in key.pem -RSAPublicKey_out -out pubkey.pem
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=head1 BUGS
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There should be an option that automatically handles F<.key> files,
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without having to manually edit them.
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=head1 SEE ALSO
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L<openssl(1)>,
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L<openssl-pkey(1)>,
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L<openssl-pkcs8(1)>,
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L<openssl-dsa(1)>,
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L<openssl-genrsa(1)>,
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L<openssl-gendsa(1)>
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=head1 COPYRIGHT
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Copyright 2000-2020 The OpenSSL Project Authors. All Rights Reserved.
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Licensed under the Apache License 2.0 (the "License"). You may not use
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this file except in compliance with the License. You can obtain a copy
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in the file LICENSE in the source distribution or at
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L<https://www.openssl.org/source/license.html>.
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=cut
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