/* -*-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
*
/*----- 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.
*
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;
#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 ------------------------------------------*/
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