X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb/blobdiff_plain/ba6e6b64033b1f9de49feccb5c9cd438354481f7..0f00dc4c8eb47e67bc0f148c2dd109f73a451e0a:/strongprime.h

diff --git a/strongprime.h b/strongprime.h
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--- a/strongprime.h
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-/* -*-c-*-
- *
- * $Id: strongprime.h,v 1.3 2004/04/08 01:36:15 mdw Exp $
- *
- * Generate `strong' prime numbers
- *
- * (c) 1999 Straylight/Edgeware
- */
-
-/*----- Licensing notice --------------------------------------------------*
- *
- * This file is part of Catacomb.
- *
- * Catacomb is free software; you can redistribute it and/or modify
- * it under the terms of the GNU Library General Public License as
- * published by the Free Software Foundation; either version 2 of the
- * License, or (at your option) any later version.
- *
- * Catacomb is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU Library General Public License for more details.
- *
- * You should have received a copy of the GNU Library General Public
- * License along with Catacomb; if not, write to the Free
- * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston,
- * MA 02111-1307, USA.
- */
-
-#ifndef CATACOMB_STRONGPRIME_H
-#define CATACOMB_STRONGPRIME_H
-
-#ifdef __cplusplus
-  extern "C" {
-#endif
-
-/*----- Header files ------------------------------------------------------*/
-
-#ifndef CATACOMB_GRAND_H
-#  include "grand.h"
-#endif
-
-#ifndef CATACOMB_PGEN_H
-#  include "pgen.h"
-#endif
-
-/*----- Functions provided ------------------------------------------------*/
-
-/* --- @strongprime_setup@ --- *
- *
- * Arguments:	@const char *name@ = pointer to name root
- *		@mp *d@ = destination for search start point
- *		@pfilt *f@ = where to store filter jump context
- *		@unsigned nbits@ = number of bits wanted
- *		@grand *r@ = random number source
- *		@unsigned n@ = number of attempts to make
- *		@pgen_proc *event@ = event handler function
- *		@void *ectx@ = argument for the event handler
- *
- * Returns:	A starting point for a `strong' prime search, or zero.
- *
- * Use:		Sets up for a strong prime search, so that primes with
- *		particular properties can be found.  It's probably important
- *		to note that the number left in the filter context @f@ is
- *		congruent to 2 (mod 4).
- */
-
-extern mp *strongprime_setup(const char */*name*/, mp */*d*/, pfilt */*f*/,
-			     unsigned /*nbits*/, grand */*r*/,
-			     unsigned /*n*/, pgen_proc */*event*/,
-			     void */*ectx*/);
-
-/* --- @strongprime@ --- *
- *
- * Arguments:	@const char *name@ = pointer to name root
- *		@mp *d@ = destination integer
- *		@unsigned nbits@ = number of bits wanted
- *		@grand *r@ = random number source
- *		@unsigned n@ = number of attempts to make
- *		@pgen_proc *event@ = event handler function
- *		@void *ectx@ = argument for the event handler
- *
- * Returns:	A `strong' prime, or zero.
- *
- * Use:		Finds `strong' primes.  A strong prime %$p$% is such that
- *
- *		  * %$p - 1$% has a large prime factor %$r$%,
- *		  * %$p + 1$% has a large prime factor %$s$%, and
- *		  * %$r - 1$% has a large prime factor %$t$%.
- *
- *		The numbers produced may be slightly larger than requested,
- *		by a few bits.
- */
-
-extern mp *strongprime(const char */*name*/, mp */*d*/, unsigned /*nbits*/,
-		       grand */*r*/, unsigned /*n*/,
-		       pgen_proc */*event*/, void */*ectx*/);
-
-/*----- That's all, folks -------------------------------------------------*/
-
-#ifdef __cplusplus
-  }
-#endif
-
-#endif