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git-subtree-dir: contrib/libder git-subtree-mainline: d11904b350214943dedb64c7121d4602799d7afd git-subtree-split: 9c40c4de4c33b2ba1124fb752ebea0bebaa6013f (cherry picked from commit 35c0a8c449fd2b7f75029ebed5e10852240f0865)
51 lines
1.2 KiB
Groff
51 lines
1.2 KiB
Groff
.\"
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.\" SPDX-Copyright-Identifier: BSD-2-Clause
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.\"
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.\" Copyright (C) 2024 Kyle Evans <kevans@FreeBSD.org>
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.\"
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.Dd March 4, 2024
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.Dt DERDUMP 1
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.Os
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.Sh NAME
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.Nm derdump
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.Nd dumping contents of DER encoded files
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.Sh SYNOPSIS
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.Nm
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.Ar file1
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.Oo Ar fileN ... Oc
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.Sh DESCRIPTION
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The
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.Nm
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utility dumps the contents of one or more DER encoded
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Ar file
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in a more human readable format.
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This is similar to the
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.Xr asn1parse 1
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utility distributed with OpenSSL when used with the
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.Fl inform
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.Ar DER
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option.
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.Pp
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A representation of the object will be output to
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.Em stdout ,
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with indentation to denote objects that are encoded within other constructed
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objects.
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Note that
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.Nm
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does not make much attempt to interpret the contents of any particular object.
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If an object uses one of the universal types, then a friendly name will be
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displayed for that object.
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If an object uses any other type, then
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.Nm
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will display the raw hex value of the type used.
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Values of primitive objects are output as raw hex, and no effort is made to
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try and print a friendly representation.
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.Sh SEE ALSO
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.Xr asn1parse 1 ,
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.Xr libder 3
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.Sh BUGS
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.Nm
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does not currently make any attempt to render a type that uses the long encoded
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format.
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Instead, it will render as
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.Dq { ... } .
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