| 04361334 |
1 | /* -*-c-*- |
| 2 | * |
| 3 | * $Id: limlee.h,v 1.1 2000/07/09 21:30:58 mdw Exp $ |
| 4 | * |
| 5 | * Generate Lim-Lee primes |
| 6 | * |
| 7 | * (c) 2000 Straylight/Edgeware |
| 8 | */ |
| 9 | |
| 10 | /*----- Licensing notice --------------------------------------------------* |
| 11 | * |
| 12 | * This file is part of Catacomb. |
| 13 | * |
| 14 | * Catacomb is free software; you can redistribute it and/or modify |
| 15 | * it under the terms of the GNU Library General Public License as |
| 16 | * published by the Free Software Foundation; either version 2 of the |
| 17 | * License, or (at your option) any later version. |
| 18 | * |
| 19 | * Catacomb is distributed in the hope that it will be useful, |
| 20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 22 | * GNU Library General Public License for more details. |
| 23 | * |
| 24 | * You should have received a copy of the GNU Library General Public |
| 25 | * License along with Catacomb; if not, write to the Free |
| 26 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| 27 | * MA 02111-1307, USA. |
| 28 | */ |
| 29 | |
| 30 | /*----- Revision history --------------------------------------------------* |
| 31 | * |
| 32 | * $Log: limlee.h,v $ |
| 33 | * Revision 1.1 2000/07/09 21:30:58 mdw |
| 34 | * Lim-Lee prime generation. |
| 35 | * |
| 36 | */ |
| 37 | |
| 38 | #ifndef CATACOMB_LIMLEE_H |
| 39 | #define CATACOMB_LIMLEE_H |
| 40 | |
| 41 | #ifdef __cplusplus |
| 42 | extern "C" { |
| 43 | #endif |
| 44 | |
| 45 | /*----- Header files ------------------------------------------------------*/ |
| 46 | |
| 47 | #ifndef CATACOMB_GRAND_H |
| 48 | # include "grand.h" |
| 49 | #endif |
| 50 | |
| 51 | #ifndef CATACOMB_MP_H |
| 52 | # include "mp.h" |
| 53 | #endif |
| 54 | |
| 55 | #ifndef CATACOMB_PGEN_H |
| 56 | # include "pgen.h" |
| 57 | #endif |
| 58 | |
| 59 | /*----- Functions provided ------------------------------------------------*/ |
| 60 | |
| 61 | /* --- @limlee@ --- * |
| 62 | * |
| 63 | * Arguments: @const char *name@ = pointer to name root |
| 64 | * @mp *d@ = pointer to destination integer |
| 65 | * @mp *newp@ = how to generate factor primes |
| 66 | * @unsigned ql@ = size of individual factors |
| 67 | * @unsigned pl@ = size of large prime |
| 68 | * @grand *r@ = a random number source |
| 69 | * @unsigned on@ = number of outer attempts to make |
| 70 | * @pgen_proc *oev@ = outer event handler function |
| 71 | * @void *oec@ = argument for the outer event handler |
| 72 | * @pgen_proc *iev@ = inner event handler function |
| 73 | * @void *iec@ = argument for the inner event handler |
| 74 | * @size_t *nf@, @mp ***f@ = output array for factors |
| 75 | * |
| 76 | * Returns: A Lim-Lee prime, or null if generation failed. |
| 77 | * |
| 78 | * Use: Generates Lim-Lee primes. A Lim-Lee prime %$p$% is one which |
| 79 | * satisfies %$p = 2 \prod_i q_i + 1$%, where all of the %$q_i$% |
| 80 | * are large enough to resist square-root discrete log |
| 81 | * algorithms. |
| 82 | * |
| 83 | * If we succeed, and @f@ is non-null, we write the array of |
| 84 | * factors chosen to @f@ for the benefit of the caller. |
| 85 | */ |
| 86 | |
| 87 | extern mp *limlee(const char */*name*/, mp */*d*/, mp */*newp*/, |
| 88 | unsigned /*ql*/, unsigned /*pl*/, grand */*r*/, |
| 89 | unsigned /*on*/, pgen_proc */*oev*/, void */*oec*/, |
| 90 | pgen_proc */*iev*/, void */*iec*/, |
| 91 | size_t */*nf*/, mp ***/*f*/); |
| 92 | |
| 93 | /*----- That's all, folks -------------------------------------------------*/ |
| 94 | |
| 95 | #ifdef __cplusplus |
| 96 | } |
| 97 | #endif |
| 98 | |
| 99 | #endif |
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