mirror of
https://github.com/CloverHackyColor/CloverBootloader.git
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151 lines
4.3 KiB
Plaintext
151 lines
4.3 KiB
Plaintext
=pod
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{- OpenSSL::safe::output_do_not_edit_headers(); -}
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=head1 NAME
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openssl-verify - certificate verification command
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=head1 SYNOPSIS
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B<openssl> B<verify>
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[B<-help>]
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[B<-CRLfile> I<filename>|I<uri>]
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[B<-crl_download>]
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[B<-show_chain>]
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[B<-verbose>]
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[B<-trusted> I<filename>|I<uri>]
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[B<-untrusted> I<filename>|I<uri>]
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[B<-vfyopt> I<nm>:I<v>]
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{- $OpenSSL::safe::opt_name_synopsis -}
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{- $OpenSSL::safe::opt_trust_synopsis -}
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{- $OpenSSL::safe::opt_engine_synopsis -}{- $OpenSSL::safe::opt_v_synopsis -}
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{- $OpenSSL::safe::opt_provider_synopsis -}
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[B<-->]
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[I<certificate> ...]
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=head1 DESCRIPTION
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This command verifies certificate chains. If a certificate chain has multiple
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problems, this program attempts to display all of them.
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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<-CRLfile> I<filename>|I<uri>
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The file or URI should contain one or more CRLs in PEM or DER format.
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This option can be specified more than once to include CRLs from multiple
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sources.
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=item B<-crl_download>
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Attempt to download CRL information for certificates via their CDP entries.
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=item B<-show_chain>
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Display information about the certificate chain that has been built (if
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successful). Certificates in the chain that came from the untrusted list will be
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flagged as "untrusted".
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=item B<-verbose>
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Print extra information about the operations being performed.
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=item B<-trusted> I<filename>|I<uri>
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A file or URI of (more or less) trusted certificates.
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See L<openssl-verification-options(1)> for more information on trust settings.
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This option can be specified more than once to load certificates from multiple
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sources.
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=item B<-untrusted> I<filename>|I<uri>
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A file or URI of untrusted certificates to use for chain building.
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This option can be specified more than once to load certificates from multiple
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sources.
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=item B<-vfyopt> I<nm>:I<v>
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Pass options to the signature algorithm during verify operations.
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Names and values of these options are algorithm-specific.
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{- $OpenSSL::safe::opt_name_item -}
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{- $OpenSSL::safe::opt_engine_item -}
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{- output_off() if $disabled{"deprecated-3.0"}; "" -}
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To load certificates or CRLs that require engine support, specify the
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B<-engine> option before any of the
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B<-trusted>, B<-untrusted> or B<-CRLfile> options.
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{- output_on() if $disabled{"deprecated-3.0"}; "" -}
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{- $OpenSSL::safe::opt_trust_item -}
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{- $OpenSSL::safe::opt_v_item -}
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{- $OpenSSL::safe::opt_provider_item -}
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=item B<-->
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Indicates the last option. All arguments following this are assumed to be
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certificate files. This is useful if the first certificate filename begins
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with a B<->.
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=item I<certificate> ...
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One or more target certificates to verify, one per file. If no certificates are
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given, this command will attempt to read a single certificate from standard
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input.
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=back
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=head1 DIAGNOSTICS
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When a verify operation fails the output messages can be somewhat cryptic. The
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general form of the error message is:
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server.pem: /C=AU/ST=Queensland/O=CryptSoft Pty Ltd/CN=Test CA (1024 bit)
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error 24 at 1 depth lookup:invalid CA certificate
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The first line contains the name of the certificate being verified followed by
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the subject name of the certificate. The second line contains the error number
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and the depth. The depth is number of the certificate being verified when a
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problem was detected starting with zero for the target ("leaf") certificate
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itself then 1 for the CA that signed the target certificate and so on.
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Finally a textual version of the error number is presented.
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A list of the error codes and messages can be found in
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L<X509_STORE_CTX_get_error(3)>; the full list is defined in the header file
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F<< <openssl/x509_vfy.h> >>.
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This command ignores many errors, in order to allow all the problems with a
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certificate chain to be determined.
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=head1 SEE ALSO
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L<openssl-verification-options(1)>,
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L<openssl-x509(1)>,
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L<ossl_store-file(7)>
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=head1 HISTORY
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The B<-show_chain> option was added in OpenSSL 1.1.0.
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The B<-engine option> was deprecated in OpenSSL 3.0.
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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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