mirror of https://github.com/openssl/openssl
146 lines
3.7 KiB
Plaintext
146 lines
3.7 KiB
Plaintext
=pod
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=head1 NAME
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openssl-format-options - OpenSSL command input and output format options
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=head1 SYNOPSIS
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B<openssl>
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I<command>
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[ I<options> ... ]
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[ I<parameters> ... ]
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=head1 DESCRIPTION
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Several OpenSSL commands can take input or generate output in a variety
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of formats.
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Since OpenSSL 3.0 keys, single certificates, and CRLs can be read from
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files in any of the B<DER>, B<PEM> or B<P12> formats. Specifying their input
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format is no more needed and the openssl commands will automatically try all
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the possible formats. However if the B<DER> or B<PEM> input format is specified
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it will be enforced.
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In order to access a key via an engine the input format B<ENGINE> may be used;
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alternatively the key identifier in the <uri> argument of the respective key
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option may be preceded by C<org.openssl.engine:>.
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See L<openssl(1)/Engine Options> for an example usage of the latter.
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=head1 OPTIONS
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=head2 Format Options
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The options to specify the format are as follows.
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Refer to the individual man page to see which options are accepted.
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=over 4
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=item B<-inform> I<format>, B<-outform> I<format>
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The format of the input or output streams.
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=item B<-keyform> I<format>
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Format of a private key input source.
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=item B<-CRLform> I<format>
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Format of a CRL input source.
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=back
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=head2 Format Option Arguments
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The possible format arguments are described below.
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Both uppercase and lowercase are accepted.
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The list of acceptable format arguments, and the default,
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is described in each command documentation.
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=over 4
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=item B<DER>
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A binary format, encoded or parsed according to Distinguished Encoding Rules
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(DER) of the ASN.1 data language.
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=item B<ENGINE>
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Used to specify that the cryptographic material is in an OpenSSL B<engine>.
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An engine must be configured or specified using the B<-engine> option.
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A password or PIN may be supplied to the engine using the B<-passin> option.
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=item B<P12>
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A DER-encoded file containing a PKCS#12 object.
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It might be necessary to provide a decryption password to retrieve
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the private key.
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=item B<PEM>
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A text format defined in IETF RFC 1421 and IETF RFC 7468. Briefly, this is
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a block of base-64 encoding (defined in IETF RFC 4648), with specific
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lines used to mark the start and end:
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Text before the BEGIN line is ignored.
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----- BEGIN object-type -----
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OT43gQKBgQC/2OHZoko6iRlNOAQ/tMVFNq7fL81GivoQ9F1U0Qr+DH3ZfaH8eIkX
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xT0ToMPJUzWAn8pZv0snA0um6SIgvkCuxO84OkANCVbttzXImIsL7pFzfcwV/ERK
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UM6j0ZuSMFOCr/lGPAoOQU0fskidGEHi1/kW+suSr28TqsyYZpwBDQ==
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----- END object-type -----
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Text after the END line is also ignored
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The I<object-type> must match the type of object that is expected.
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For example a C<BEGIN X509 CERTIFICATE> will not match if the command
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is trying to read a private key. The types supported include:
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ANY PRIVATE KEY
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CERTIFICATE
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CERTIFICATE REQUEST
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CMS
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DH PARAMETERS
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DSA PARAMETERS
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DSA PUBLIC KEY
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EC PARAMETERS
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EC PRIVATE KEY
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ECDSA PUBLIC KEY
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ENCRYPTED PRIVATE KEY
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PARAMETERS
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PKCS #7 SIGNED DATA
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PKCS7
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PRIVATE KEY
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PUBLIC KEY
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RSA PRIVATE KEY
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SSL SESSION PARAMETERS
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TRUSTED CERTIFICATE
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X509 CRL
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X9.42 DH PARAMETERS
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The following legacy I<object-type>'s are also supported for compatibility
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with earlier releases:
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DSA PRIVATE KEY
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NEW CERTIFICATE REQUEST
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RSA PUBLIC KEY
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X509 CERTIFICATE
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=item B<SMIME>
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An S/MIME object as described in IETF RFC 8551.
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Earlier versions were known as CMS and are compatible.
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Note that the parsing is simple and might fail to parse some legal data.
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=back
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=head1 COPYRIGHT
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Copyright 2000-2021 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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