/* -*-c-*-
*
- * $Id: f-niceprime.c,v 1.1 2004/03/27 00:04:46 mdw Exp $
+ * $Id: f-niceprime.c,v 1.3 2004/04/01 12:50:09 mdw Exp $
*
* Prime fields with efficient reduction for special-form primes
*
/*----- Revision history --------------------------------------------------*
*
* $Log: f-niceprime.c,v $
+ * Revision 1.3 2004/04/01 12:50:09 mdw
+ * Add cyclic group abstraction, with test code. Separate off exponentation
+ * functions for better static linking. Fix a buttload of bugs on the way.
+ * Generally ensure that negative exponents do inversion correctly. Add
+ * table of standard prime-field subgroups. (Binary field subgroups are
+ * currently unimplemented but easy to add if anyone ever finds a good one.)
+ *
+ * Revision 1.2 2004/03/27 17:54:11 mdw
+ * Standard curves and curve checking.
+ *
* Revision 1.1 2004/03/27 00:04:46 mdw
* Implement efficient reduction for pleasant-looking primes.
*
static field_ops fops = {
FTY_PRIME, "niceprime",
- fdestroy, frand,
+ fdestroy, frand, field_stdsamep,
freduce, field_id,
fzerop, fneg, fadd, fsub, fmul, fsqr, finv, freduce, fsqrt,
0,
f->f.ops = &fops;
f->f.zero = MP_ZERO;
f->f.one = MP_ONE;
+ f->f.nbits = mp_bits(p);
+ f->f.noctets = (f->f.nbits + 7) >> 3;
mpreduce_create(&f->r, p);
+ f->f.m = f->r.p;
return (&f->f);
}