diff --git a/doc/ack.texi b/doc/ack.texi
index c22acd01f..f32b9de9e 100644
--- a/doc/ack.texi
+++ b/doc/ack.texi
@@ -5,7 +5,12 @@
 @appendix Acknowledgments
 
 Eric Young wrote ``libdes''. Heimdal used to use libdes, without it
-kth-krb would never have existed.
+kth-krb would never have existed. 
+
+All functions in libdes have been re-implemented or used available
+public domain code. The core AES function where written by Vincent
+Rijmen, Antoon Bosselaers and Paulo Barreto.  The core DES SBOX
+transformation was written by Richard Outerbridge.
 
 The University of California at Berkeley initially wrote @code{telnet},
 and @code{telnetd}.  The authentication and encryption code of
@@ -32,8 +37,8 @@ Bugfixes, documentation, encouragement, and code has been contributed by:
 @email{kenh@@cmf.nrl.navy.mil}
 @item Johan Ihrén
 @email{johani@@pdc.kth.se}
-@item Love Hörnquist-Åstrand
-@email{lha@@stacken.kth.se}
+@item Love Hörnquist Åstrand
+@email{lha@@kth.se}
 @item Magnus Ahltorp
 @email{map@@stacken.kth.se}
 @item Mark Eichin