Christopher Chillingworth Named Cylink's Acting Chief Financial Officer

         SANTA CLARA,  Calif.--(BUSINESS WIRE)--Nov. 6, 2000--Cylink Corporation
(Nasdaq:CYLK - news) today announced that  Christopher  Chillingworth,  formerly
Cylink's  Corporate  Controller,  has  been  appointed  Acting  Chief  Financial
Officer.  He succeeds  Roger A. Barnes,  who has resigned to become  president &
chief executive officer of GeoTouch, Incorporated.

         "We are  very  pleased  that  Chris  Chillingworth  has  accepted  this
exciting opportunity to increase his contribution to the Cylink management team.
We  wish  Roger  well  in  his  new  responsibilities  and  thank  him  for  his
contributions to Cylink," said William P. Crowell, president and chief executive
officer.

         Cylink Corporation

         Cylink  Corporation  develops,  markets  and  supports a  comprehensive
family of secure  e-business  solutions.  Founded in 1983,  the  Company was the
first created to market  security  solutions  that protect  communications  with
public key cryptography.  Cylink and its wholly owned subsidiaries serve Fortune
500 companies,  multinational  financial  institutions,  and government agencies
worldwide.