X-Git-Url: https://git.distorted.org.uk/u/mdw/catacomb/blobdiff_plain/621468d83b9305d85b36c27b6cbf8f4dac89d284..b817bfc642225b8c3c0b6a7e42d1fb949b61a606:/safer.h

diff --git a/safer.h b/safer.h
index f4d5516..95b5b9e 100644
--- a/safer.h
+++ b/safer.h
@@ -1,6 +1,6 @@
 /* -*-c-*-
  *
- * $Id: safer.h,v 1.1 2001/04/29 17:37:35 mdw Exp $
+ * $Id: safer.h,v 1.3 2004/04/08 01:36:15 mdw Exp $
  *
  * The SAFER block cipher
  *
@@ -27,12 +27,17 @@
  * MA 02111-1307, USA.
  */
 
-/*----- Revision history --------------------------------------------------* 
+/*----- Notes on the SAFER block cipher -----------------------------------*
  *
- * $Log: safer.h,v $
- * Revision 1.1  2001/04/29 17:37:35  mdw
- * Added SAFER block cipher.
+ * SAFER was designed by James Massey (who also worked on IDEA) for Cylink.
+ * It's free -- patents or other silliness.  The original key schedule had
+ * some weaknesses, and a new one (the SK version) was added.  SAFER has a
+ * variable number of rounds.  The standard interface uses the recommended
+ * number for the given key schedule algorithm and key size.
  *
+ * SAFER got a bad press in Schneier's book `Applied Cryptography'.  I think
+ * this is undeserved.  SAFER is a well-designed cipher which mostly looks
+ * pretty solid.
  */
 
 #ifndef CATACOMB_SAFER_H