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133 lines
3.0 KiB
Groff
133 lines
3.0 KiB
Groff
.\" $NetBSD: digest.1,v 1.8 2016/03/03 22:11:07 agc Exp $
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.\"
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.\" Copyright (c) 2001-2016 Alistair Crooks <agc@NetBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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.\"
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.Dd February 16, 2016
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.Dt DIGEST 1
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.Os
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.Sh NAME
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.Nm digest
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.Nd calculate message digests
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.Sh SYNOPSIS
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.Nm
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.Op Fl "Vt"
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.Ar algorithm
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.Op Ar
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.Sh DESCRIPTION
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The
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.Nm
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utility calculates message digests of files or,
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if no file is specified, standard input.
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.Pp
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It can also run self tests via the
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.Fl t
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command line option; the only self tests currently defined are
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for the
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.Dv SHA3
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set of digests.
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.Pp
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The
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.Fl V
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command line option prints the version number of
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.Nm
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and exits successfully.
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.Pp
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The list of possible algorithms is:
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.Bl -tag -width SHA3_512xxx
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.It md5
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the
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.Xr md5 3
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algorithm will be used.
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.It rmd160
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the
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.Xr rmd160 3
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algorithm will be used.
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.It sha1
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the
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.Xr sha1 3
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algorithm will be used.
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.It sha256
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the
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sha256
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algorithm will be used.
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.It sha384
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the
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sha384
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algorithm will be used.
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.It sha3_224
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the
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sha3_224
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algorithm will be used.
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.It sha3_256
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the
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sha3_256
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algorithm will be used.
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.It sha3_384
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the
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sha3_384
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algorithm will be used.
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.It sha3_512
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the
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sha3_512
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algorithm will be used.
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.It sha512
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the
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sha512
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algorithm will be used.
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.It tiger
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the
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tiger
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algorithm will be used.
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.It whirlpool
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the
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whirlpool
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algorithm will be used.
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.El
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.Pp
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The
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.Nm
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utility is a simple wrapper for the various different
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algorithm implementations, which are located in the standard
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C library, and was designed to be scalable as new message digest
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algorithms are developed.
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.Pp
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The
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.Nm
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utility exits 0 on success, and \*[Gt]0 if an error occurs.
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.Sh SEE ALSO
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.Xr cksum 1 ,
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.Xr md5 3 ,
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.Xr rmd160 3 ,
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.Xr sha1 3
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.Sh HISTORY
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The
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.Nm
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utility first appeared in
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.Nx 1.6 .
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.Sh AUTHORS
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The
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.Nm
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utility was written by
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.An Alistair G. Crooks Aq Mt agc@netbsd.org .
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