X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/2685767a6125c1620719c7de6234aedf41857b7e..f7061dad5d93b445ab19a7c13e1813bf36061a73:/field.h

diff --git a/field.h b/field.h
index 87d3865..dd674c9 100644
--- a/field.h
+++ b/field.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: field.h,v 1.2 2001/05/07 17:30:13 mdw Exp $
+ * $Id: field.h,v 1.4 2004/03/21 22:52:06 mdw Exp $
  *
  * Definitions for field arithmetic
  *
@@ -30,6 +30,18 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: field.h,v $
+ * Revision 1.4  2004/03/21 22:52:06  mdw
+ * Merge and close elliptic curve branch.
+ *
+ * Revision 1.3.4.2  2004/03/21 22:39:46  mdw
+ * Elliptic curves on binary fields work.
+ *
+ * Revision 1.3.4.1  2004/03/20 00:13:31  mdw
+ * Projective coordinates for prime curves
+ *
+ * Revision 1.3  2002/01/13 13:48:44  mdw
+ * Further progress.
+ *
  * Revision 1.2  2001/05/07 17:30:13  mdw
  * Add an internal-representation no-op function.
  *
@@ -67,18 +79,26 @@ typedef struct field_ops {
   mp *(*in)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*out)(field */*f*/, mp */*d*/, mp */*x*/);
 
+  int (*zerop)(field */*f*/, mp */*x*/);
+  mp *(*neg)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*add)(field */*f*/, mp */*d*/, mp */*x*/, mp */*y*/);
   mp *(*sub)(field */*f*/, mp */*d*/, mp */*x*/, mp */*y*/);
   mp *(*mul)(field */*f*/, mp */*d*/, mp */*x*/, mp */*y*/);
   mp *(*sqr)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*inv)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*reduce)(field */*f*/, mp */*d*/, mp */*x*/);
+  mp *(*sqrt)(field */*f*/, mp */*d*/, mp */*x*/);
+
+  /* --- Operations for binary fields only --- */
+
+  mp *(*quadsolve)(field */*f*/, mp */*d*/, mp */*x*/);
 
   /* --- Operations for prime fields only --- */
 
   mp *(*dbl)(field */*f*/, mp */*d*/, mp */*x*/);
   mp *(*tpl)(field */*f*/, mp */*d*/, mp */*x*/);
-  mp *(*sqrt)(field */*f*/, mp */*d*/, mp */*x*/);
+  mp *(*qdl)(field */*f*/, mp */*d*/, mp */*x*/);
+  mp *(*hlv)(field */*f*/, mp */*d*/, mp */*x*/);
 
 } field_ops;
 
@@ -86,16 +106,23 @@ typedef struct field_ops {
 
 #define F_IN(f, d, x)		(f)->ops->in((f), (d), (x))
 #define F_OUT(f, d, x)		(f)->ops->out((f), (d), (x))
+
+#define F_ZEROP(f, x)		(f)->ops->zerop((f), (x))
+#define F_NEG(f, d, x)		(f)->ops->neg((f), (d), (x))
 #define F_ADD(f, d, x, y)	(f)->ops->add((f), (d), (x), (y))
 #define F_SUB(f, d, x, y)	(f)->ops->sub((f), (d), (x), (y))
 #define F_MUL(f, d, x, y)	(f)->ops->mul((f), (d), (x), (y))
 #define F_SQR(f, d, x)		(f)->ops->sqr((f), (d), (x))
 #define F_INV(f, d, x)		(f)->ops->inv((f), (d), (x))
 #define F_REDUCE(f, d, x)	(f)->ops->reduce((f), (d), (x))
+#define F_SQRT(f, d, x)		(f)->ops->sqrt((f), (d), (x))
+
+#define F_QUADSOLVE(f, d, x)	(f)->ops->quadsolve((f), (d), (x))
 
 #define F_DBL(f, d, x)		(f)->ops->dbl((f), (d), (x))
 #define F_TPL(f, d, x)		(f)->ops->tpl((f), (d), (x))
-#define F_SQRT(f, d, x)		(f)->ops->sqrt((f), (d), (x))
+#define F_QDL(f, d, x)		(f)->ops->qdl((f), (d), (x))
+#define F_HLV(f, d, x)		(f)->ops->hlv((f), (d), (x))
 
 /*----- Helpful field operations ------------------------------------------*/
 
@@ -139,20 +166,6 @@ extern field *field_prime(mp */*p*/);
 
 extern field *field_binpoly(mp */*p*/);
 
-/* --- @field_binsparsepoly@ --- *
- *
- * Arguments:	@unsigned deg@ = the degree of the field polynomial
- *		@const unsigned *c@ = degrees of nonzero coefficients
- *
- * Returns:	A pointer to the field.
- *
- * Use:		Creates a field structure for a binary field taking advantage
- *		of the sparseness of the given polynomial to improve
- *		reduction performance.
- */
-
-extern field *field_binsparsepoly(unsigned /*deg*/, const unsigned */*c*/);
-
 /*----- That's all, folks -------------------------------------------------*/
 
 #ifdef __cplusplus