X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/866fa31561005dd4a90fa92df86134e3829b86bf..59919ae4b1721ca271c3d3e5955c09d322573821:/rabin.h

diff --git a/rabin.h b/rabin.h
index d57efcd..d5ee9d3 100644
--- a/rabin.h
+++ b/rabin.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: rabin.h,v 1.5 2000/07/09 21:32:16 mdw Exp $
+ * $Id: rabin.h,v 1.6 2002/01/13 13:42:53 mdw Exp $
  *
  * Miller-Rabin primality test
  *
@@ -30,6 +30,10 @@
 /*----- Revision history --------------------------------------------------* 
  *
  * $Log: rabin.h,v $
+ * Revision 1.6  2002/01/13 13:42:53  mdw
+ * More efficient Rabin-Miller test: with random witnesses, skip redundant
+ * Montgomerization.  (Being bijective, it can't affect the distribution.)
+ *
  * Revision 1.5  2000/07/09 21:32:16  mdw
  * rabin_test: Correct error in comment.
  *
@@ -105,7 +109,7 @@ extern void rabin_create(rabin */*r*/, mp */*m*/);
 
 extern void rabin_destroy(rabin */*r*/);
 
-/* --- @rabin_test@ --- *
+/* --- @rabin_test@, @rabin_rtest@ --- *
  *
  * Arguments:	@rabin *r@ = pointer to Rabin-Miller context
  *		@mp *g@ = base to test the number against
@@ -114,9 +118,11 @@ extern void rabin_destroy(rabin */*r*/);
  *		if it succeeded.
  *
  * Use:		Performs a single iteration of the Rabin-Miller primality
- *		test.
+ *		test.  The @rtest@ variant assumes that %$g$% is either
+ *		already in Montgomery representation, or you don't care.
  */
 
+extern int rabin_rtest(rabin */*r*/, mp */*g*/);
 extern int rabin_test(rabin */*r*/, mp */*g*/);
 
 /* --- @rabin_iters@ --- *