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106 lines
2.2 KiB
106 lines
2.2 KiB
14 years ago
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=pod
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=head1 NAME
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pkcs7 - PKCS#7 utility
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=head1 SYNOPSIS
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B<openssl> B<pkcs7>
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[B<-inform PEM|DER>]
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[B<-outform PEM|DER>]
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[B<-in filename>]
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[B<-out filename>]
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[B<-print_certs>]
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[B<-text>]
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[B<-noout>]
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[B<-engine id>]
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=head1 DESCRIPTION
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The B<pkcs7> command processes PKCS#7 files in DER or PEM format.
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=head1 COMMAND OPTIONS
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=over 4
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=item B<-inform DER|PEM>
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This specifies the input format. B<DER> format is DER encoded PKCS#7
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v1.5 structure.B<PEM> (the default) is a base64 encoded version of
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the DER form with header and footer lines.
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=item B<-outform DER|PEM>
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This specifies the output format, the options have the same meaning as the
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B<-inform> option.
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=item B<-in filename>
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This specifies the input filename to read from or standard input if this
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option is not specified.
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=item B<-out filename>
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specifies the output filename to write to or standard output by
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default.
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=item B<-print_certs>
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prints out any certificates or CRLs contained in the file. They are
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preceded by their subject and issuer names in one line format.
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=item B<-text>
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prints out certificates details in full rather than just subject and
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issuer names.
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=item B<-noout>
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don't output the encoded version of the PKCS#7 structure (or certificates
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is B<-print_certs> is set).
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=item B<-engine id>
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specifying an engine (by its unique B<id> string) will cause B<pkcs7>
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to attempt to obtain a functional reference to the specified engine,
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thus initialising it if needed. The engine will then be set as the default
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for all available algorithms.
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=back
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=head1 EXAMPLES
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Convert a PKCS#7 file from PEM to DER:
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openssl pkcs7 -in file.pem -outform DER -out file.der
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Output all certificates in a file:
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openssl pkcs7 -in file.pem -print_certs -out certs.pem
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=head1 NOTES
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The PEM PKCS#7 format uses the header and footer lines:
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-----BEGIN PKCS7-----
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-----END PKCS7-----
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For compatibility with some CAs it will also accept:
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-----BEGIN CERTIFICATE-----
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-----END CERTIFICATE-----
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=head1 RESTRICTIONS
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There is no option to print out all the fields of a PKCS#7 file.
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This PKCS#7 routines only understand PKCS#7 v 1.5 as specified in RFC2315 they
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cannot currently parse, for example, the new CMS as described in RFC2630.
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=head1 SEE ALSO
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L<crl2pkcs7(1)|crl2pkcs7(1)>
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=cut
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