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-.\" $NetBSD: qsieve.6,v 1.2 2006/01/22 00:32:54 wiz Exp $
-.\"
-.\" Copyright 1997, 2003 William Allen Simpson <wsimpson@greendragon.com>
-.\" All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software designed by William Allen Simpson.
-.\" 4. The name of the author may not be used to endorse or promote products
-.\" derived from this software without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
-.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
-.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
-.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
-.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
-.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
-.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-.\"
-.\" Manual page, using -mandoc macros
-.\"
-.Dd July 28, 1997
-.Dt QSIEVE 1
-.Os
-.Sh NAME
-.Nm qsieve ,
-.Nm qsafe
-.Nd generate system moduli file
-.Sh SYNOPSIS
-.Nm
-.Op Ar megabytes Ar bits Op Ar initial
-.Nm qsafe
-.Op Ar trials Op Ar generator
-.Sh DESCRIPTION
-The
-.Nm
-utility will list candidates for Sophie-Germaine primes
-(where q = (p-1)/2)
-to standard output.
-The list is checked against small known primes
-(less than 2**30).
-This step is both processor and memory intensive.
-.Pp
-The
-.Ar megabytes
-value
-sets a limit for the internal sieve buffer.
-This should be small enough to remain entirely in memory.
-Swap thrashing can increase the run time
-from hours to days or weeks!
-When the
-.Ar megabytes
-value is zero (0),
-.Nm
-will select a default suitable for the
-.Ar bits .
-.Pp
-The
-.Ar bits
-value
-sets the length of the generated possible primes
-(typically 768, 1024, 1536, 2048, 3072, or 4096,
-although others can be used for variety).
-.Pp
-The optional
-.Ar initial
-value (hex)
-specifies the beginning of the search.
-Otherwise,
-.Nm
-generates a randomly selected number.
-.Pp
-The
-.Nm qsafe
-utility will perform a Miller-Rabin primality test
-on the list of candidates
-(checking both q and p)
-from standard input.
-The result is a list of so-call "safe" primes
-to standard output,
-suitable for use as Diffie-Hellman moduli.
-This step is merely processor intensive.
-.Pp
-The
-.Ar trials
-value
-sets the number of Miller-Rabin interations
-(typically 16 to 128).
-.Pp
-The optional
-.Ar generator
-value (hex)
-limits testing to candidates with a specific generator
-(usually 2).
-Otherwise,
-.Nm qsafe
-will test each candidate
-and suggest a generator.
-.Sh SEE ALSO
-.Xr moduli 5
-.Sh HISTORY
-These programs were originally developed for
-the Photuris project,
-and later
-the OpenSSH project.