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 |