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Use clever recursive algorithm for writing numbers out.
[u/mdw/catacomb]
/
bbs-rand.c
diff --git
a/bbs-rand.c
b/bbs-rand.c
index
054a158
..
006bc07
100644
(file)
--- a/
bbs-rand.c
+++ b/
bbs-rand.c
@@
-1,6
+1,6
@@
/* -*-c-*-
*
/* -*-c-*-
*
- * $Id: bbs-rand.c,v 1.
1 1999/12/10 23:14:59
mdw Exp $
+ * $Id: bbs-rand.c,v 1.
2 1999/12/13 15:34:01
mdw Exp $
*
* Blum-Blum-Shub secure random number generator
*
*
* Blum-Blum-Shub secure random number generator
*
@@
-30,6
+30,9
@@
/*----- Revision history --------------------------------------------------*
*
* $Log: bbs-rand.c,v $
/*----- Revision history --------------------------------------------------*
*
* $Log: bbs-rand.c,v $
+ * Revision 1.2 1999/12/13 15:34:01 mdw
+ * Add support for seeding from a generic pseudorandom source.
+ *
* Revision 1.1 1999/12/10 23:14:59 mdw
* Blum-Blum-Shub generator, and Blum-Goldwasser encryption.
*
* Revision 1.1 1999/12/10 23:14:59 mdw
* Blum-Blum-Shub generator, and Blum-Goldwasser encryption.
*
@@
-49,6
+52,7
@@
#include "mp.h"
#include "mpbarrett.h"
#include "mpint.h"
#include "mp.h"
#include "mpbarrett.h"
#include "mpint.h"
+#include "mprand.h"
/*----- Main code ---------------------------------------------------------*/
/*----- Main code ---------------------------------------------------------*/
@@
-245,6
+249,7
@@
static int gmisc(grand *r, unsigned op, ...)
case GRAND_SEEDINT:
case GRAND_SEEDUINT32:
case GRAND_SEEDMP:
case GRAND_SEEDINT:
case GRAND_SEEDUINT32:
case GRAND_SEEDMP:
+ case GRAND_SEEDRAND:
case BBS_SET:
rc = 1;
break;
case BBS_SET:
rc = 1;
break;
@@
-266,6
+271,12
@@
static int gmisc(grand *r, unsigned op, ...)
case GRAND_SEEDMP:
bbs_seed(&g->b, va_arg(ap, mp *));
break;
case GRAND_SEEDMP:
bbs_seed(&g->b, va_arg(ap, mp *));
break;
+ case GRAND_SEEDRAND: {
+ grand *rr = va_arg(ap, grand *);
+ mp *m = mprand(MP_NEW, mp_bits(g->b.mb.m) - 1, rr, 0);
+ bbs_seed(&g->b, m);
+ mp_drop(m);
+ } break;
case BBS_SET:
bbs_set(&g->b, va_arg(ap, mp *));
break;
case BBS_SET:
bbs_set(&g->b, va_arg(ap, mp *));
break;