X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/432c4e184d44704511a5991b80224a87cb1d4613..8404fd750e8d1a635ccb3895e4f0e155e5f5e3cf:/ectab.h

diff --git a/ectab.h b/ectab.h
index d8d4302..d75e79c 100644
--- a/ectab.h
+++ b/ectab.h
@@ -1,8 +1,8 @@
 /* -*-c-*-
  *
- * $Id: ectab.h,v 1.1 2004/03/27 17:54:11 mdw Exp $
+ * $Id: ectab.h,v 1.3 2004/04/01 21:28:41 mdw Exp $
  *
- * Table of standard elliptic curves (internal)
+ * Table of standard elliptic curves
  *
  * (c) 2004 Straylight/Edgeware
  */
@@ -30,6 +30,18 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: ectab.h,v $
+ * Revision 1.3  2004/04/01 21:28:41  mdw
+ * Normal basis support (translates to poly basis internally).  Rewrite
+ * EC and prime group table generators in awk, so that they can reuse data
+ * for repeated constants.
+ *
+ * Revision 1.2  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 1.1  2004/03/27 17:54:11  mdw
  * Standard curves and curve checking.
  *
@@ -50,24 +62,23 @@
 
 typedef struct ecdata {
   unsigned ftag;			/* The kind of curve this is */
-  const mpw *p; size_t psz;		/* Modulus */
-  const mpw *a; size_t asz;		/* Elliptic curve parameters */
-  const mpw *b; size_t bsz;
-  const mpw *r; size_t rsz;		/* Order of common point %$g$% */
-  const mpw *h; size_t hsz;		/* Cofactor %$h = \#E/r$% */
-  const mpw *gx; size_t gxsz;		/* Common point */
-  const mpw *gy; size_t gysz;
+  mp p, beta;				/* Modulus, and conversion magic */
+  mp a, b;				/* Elliptic curve parameters */
+  mp r;					/* Order of common point %$g$% */
+  mp h;					/* Cofactor %$h = \#E/r$% */
+  mp gx, gy;				/* Common point */
 } ecdata;
 
 enum {
   FTAG_PRIME,				/* Prime but not nice */
   FTAG_NICEPRIME,			/* Nice prime field */
-  FTAG_BINPOLY				/* Any old binary field */
+  FTAG_BINPOLY,				/* Binary field, poly basis */
+  FTAG_BINNORM				/* Binary field, normal basis */
 };
 
 typedef struct ecentry {
   const char *name;
-  const ecdata *data;
+  ecdata *data;
 } ecentry;
 
 /*----- Global variables --------------------------------------------------*/