projects
/
u
/
mdw
/
catacomb
/ blobdiff
commit
grep
author
committer
pickaxe
?
search:
re
summary
|
shortlog
|
log
|
commit
|
commitdiff
|
tree
raw
|
inline
| side by side
Random field-element selection.
[u/mdw/catacomb]
/
f-prime.c
diff --git
a/f-prime.c
b/f-prime.c
index
8454902
..
5ab4204
100644
(file)
--- a/
f-prime.c
+++ b/
f-prime.c
@@
-1,6
+1,6
@@
/* -*-c-*-
*
/* -*-c-*-
*
- * $Id: f-prime.c,v 1.
4 2004/03/21 22:52:0
6 mdw Exp $
+ * $Id: f-prime.c,v 1.
5 2004/03/23 12:08:2
6 mdw Exp $
*
* Prime fields with Montgomery arithmetic
*
*
* Prime fields with Montgomery arithmetic
*
@@
-30,6
+30,9
@@
/*----- Revision history --------------------------------------------------*
*
* $Log: f-prime.c,v $
/*----- Revision history --------------------------------------------------*
*
* $Log: f-prime.c,v $
+ * Revision 1.5 2004/03/23 12:08:26 mdw
+ * Random field-element selection.
+ *
* Revision 1.4 2004/03/21 22:52:06 mdw
* Merge and close elliptic curve branch.
*
* Revision 1.4 2004/03/21 22:52:06 mdw
* Merge and close elliptic curve branch.
*
@@
-59,6
+62,7
@@
#include "field.h"
#include "mpmont.h"
#include "field.h"
#include "mpmont.h"
+#include "mprand.h"
/*----- Data structures ---------------------------------------------------*/
/*----- Data structures ---------------------------------------------------*/
@@
-78,6
+82,12
@@
static void fdestroy(field *ff)
DESTROY(f);
}
DESTROY(f);
}
+static mp *frand(field *ff, mp *d, grand *r)
+{
+ fctx *f = (fctx *)ff;
+ return (mprand_range(d, f->mm.m, r, 0));
+}
+
static mp *fin(field *ff, mp *d, mp *x)
{
fctx *f = (fctx *)ff;
static mp *fin(field *ff, mp *d, mp *x)
{
fctx *f = (fctx *)ff;
@@
-208,7
+218,7
@@
static mp *fhlv(field *ff, mp *d, mp *x)
/* --- Field operations table --- */
static field_ops fops = {
/* --- Field operations table --- */
static field_ops fops = {
- fdestroy,
+ fdestroy,
frand,
fin, fout,
fzerop, fneg, fadd, fsub, fmul, fsqr, finv, freduce, fsqrt,
0,
fin, fout,
fzerop, fneg, fadd, fsub, fmul, fsqr, finv, freduce, fsqrt,
0,