Normal basis support (translates to poly basis internally). Rewrite

[u/mdw/catacomb] / field.h

diff --git a/field.h b/field.h
index bf0428a..3a46ac9 100644 (file)
--- a/field.h
+++ b/field.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: field.h,v 1.9 2004/04/01 12:50:09 mdw Exp $
+ * $Id: field.h,v 1.10 2004/04/01 21:28:41 mdw Exp $
  *
  * Definitions for field arithmetic
  *
@@ -30,6 +30,11 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: field.h,v $
+ * Revision 1.10  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 1.9  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.
@@ -250,6 +255,20 @@ extern field *field_niceprime(mp */*p*/);
 
 extern field *field_binpoly(mp */*p*/);
 
+/* --- @field_binnorm@ --- *
+ *
+ * Arguments:  @mp *p@ = the reduction polynomial
+ *             @mp *beta@ = representation of normal point
+ *
+ * Returns:    A pointer to the field.
+ *
+ * Use:                Creates a field structure for a binary field mod @p@ which
+ *             uses a normal basis representation externally.  Computations
+ *             are still done on a polynomial-basis representation.
+ */
+
+extern field *field_binnorm(mp */*p*/, mp */*beta*/);
+
 /* --- @field_parse@ --- *
  *
  * Arguments:  @qd_parse *qd@ = parser context
@@ -258,9 +277,10 @@ extern field *field_binpoly(mp */*p*/);
  *
  * Use:                Parses a field description, which has the form
  *
- *               * `prime', `niceprime' or `binpoly'
+ *               * `prime', `niceprime', `binpoly', or `binnorm'
  *               * an optional `:'
  *               * the field modulus
+ *               * for `binnorm', an optional `,' and the beta value
  */
 
 extern field *field_parse(qd_parse */*qd*/);