FOR IMMEDIATE RELEASE                                   FILED UNDER RULE  425
                                                        BY CYLINK CORPORATION
                                                        SEC File No. 0-27742

Contacts:
- ---------

         Howard Kalt                Chris Chillingworth
         Kalt Rosen & Co.           Chief Financial Officer
         414/397-2686               408/855-6102
         Kalt@KRC-IR.com            cchillin@cylink.com
         ---------------            -------------------



                        ISS Recommends Cylink Shareowners
                          Vote for Merger With SafeNet

SANTA CLARA, Calif.,  January 28, 2003 -Cylink Corporation (Nasdaq:  CYLK) today
announced  that  Institutional  Shareholder  Services Inc. (ISS) -- the nation's
leading   independent   proxy  advisory  firm  -  has  recommended  that  Cylink
shareholders  vote to approve the merger of Cylink with SafeNet,  Inc. ISS is an
independent  expert  organization  that  advises  many of the  nation's  largest
institutional  investors on shareholder voting matters. In issuing its report on
the proposed  merger between  Cylink and SafeNet ISS said,  "Based on the market
premium,  the fairness  opinion  rendered by First  Analysis,  and the potential
strategic  synergies,  we believe  the  merger  agreement  warrants  shareholder
support."  In  addition,  the ISS  analysis  stated  that the  merger of the two
companies  would:

     o   Represent a  significant  premium  over the  closing  price of Cylink's
         common stock on the last trading day prior to the merger announcement.

     o   Result in  strategic  advantages  stemming  in part from  complementary
         expertise,  that may result in greater  growth of the combined  company
         than the two companies might achieve operating independently

     o   Combine complementary  strengths of the two companies, as well as their
         complementary products, services and solutions.

     o   Result in a combined  company  with  significantly  greater  financial,
         technological,  and human resources to develop new products and acquire
         new technologies.

     The ISS report  also  noted that the  fairness  opinion  rendered  by First
     Analysis Corporation  indicated that the transaction was fair to the Cylink
     shareholders from a financial point of view, and added that the offer price
     represents a 115 percent  premium based on Cylink's  average  closing price
     for the five-day period beginning 60 days prior to the announcement.

                                    --more--




ISS Recommends Cylink Shareholders Approve
1/28/03--page 2


The ISS analysis  also pointed out that the merger is intended to be tax-free to
the Cylink  shareholders,  who will end up owning  approximately 17.4 percent of
SafeNet stock at the time the merger is completed.  For these  reasons,  ISS has
advised the Cylink shareholders to vote in favor of item 1 on the proxy.

"We are pleased that ISS' careful  analysis  recognized  both the  strategic and
economic  benefits  of this  combination,"  said  William P.  Crowell,  Cylink's
president and chief executive officer. The special meeting of Cylink shareowners
to vote  for the  merger  with  SafeNet  will be held on  February  5.  For more
information about how to vote for the merger proposal,  shareholders should call
R.  Christopher  Chillingworth,  Cylink's  VP Finance  and CFO at  408-855-6003.
Subject to shareholder approval and the satisfaction of other closing conditions
in the merger  agreement,  SafeNet and Cylink expect to close the transaction in
early February.

About Cylink

Cylink develops, markets, and supports a comprehensive portfolio of hardware and
software  security products for  mission-critical  private networks and business
communications  over the Internet.  The company's  solutions  offer  competitive
advantages  by lowering the cost of  deploying  and  managing  secure,  reliable
private   networks,   while  enabling  the  use  of  the  Internet  for  trusted
transactions with business partners and customers. Headquartered in Santa Clara,
California, Cylink has 165 employees worldwide working in six offices around the
world.

About SafeNet

SafeNet,  Inc. (Nasdaq:  SFNT) has set the industry standard for virtual private
network (VPN) technology and secure business  communications.  With more than 18
years experience in developing, deploying, and managing network security systems
for  the  most   security-conscious   financial   institutions   and  government
organizations  around the world,  SafeNet's proven technology has emerged as the
de facto  industry  standard for VPNs.  SafeNet  created the first  Internet VPN
system,  which has  evolved  into the only  encryption  platform  to meet  every
security need in every product category.  SafeNet security  solutions,  based on
SecureIP Technology(TM),  and part of the CGX Security Platform, have become the
products of choice for leading Internet  infrastructure  manufacturers,  service
providers,  and security  vendors.  With SafeNet securing the  infrastructure of
today's  e-business  communications  as well as  leading  the way in  government
Homeland and classified  data  security,  the company has opened new markets for
interoperable,  secure, and deployable VPN communications.  Commercial customers
include Texas Instruments,  Microsoft, Samsung, Centillium Communications,  ARM,
and Cisco Systems. Government customers include U.S. Department of Defense, U.S.
Internal  Revenue  Service,  and the Social  Security  Administration.  For more
information, visit http://www.SafeNet-inc.com/.

                                    --more--



ISS Recommends Cylink Shareholders Approve
1/28/03--page 3


"Safe Harbor"  Statement under the Private  Securities  Litigation Reform Act of
1995

The statements  contained in this release,  which are not historical  facts, are
forward-looking  statements  within the meaning of Section 27A of the Securities
Act of 1933 and Section 21E of the Securities  Exchange Act of 1934. Examples of
such forward looking statements  include statements  regarding the premium to be
realized by Cylink  shareholders in the merger,  the expected  synergies between
Cylink and  SafeNet  and the  ability  of the  combined  company to develop  new
products and  technologies,  the tax  treatment of the merger,  and the expected
period  for  closing  the   transaction.   These   statements   are  subject  to
uncertainties  that could cause actual results to differ  materially

from those set forth in or implied by  forward-looking  statements.  These risks
and  uncertainties  include the volatility of both SafeNet's and Cylink's common
stock and the market value of SafeNet's  common stock at the  effective  time of
the merger, the failure of either SafeNet's or Cylink's  shareholders to approve
the merger by the  required  vote,  the  failure of Cylink or SafeNet to satisfy
certain closing  conditions in the merger  agreement,  the risk that SafeNet and
Cylink may not  combine  the two  companies,  their  products  and  technologies
effectively  or at all, and the other risks  described in Cylink's and SafeNet's
Securities and Exchange Commission filings.

Additional Information and Where to Find It

Prior to this communication,  SafeNet has filed a Registration Statement on Form
S-4 with the SEC (the "Registration  Statement") in connection with the proposed
merger of Cylink with a subsidiary of SafeNet, Inc. (the "Merger"),  pursuant to
the merger agreement (the "Merger  Agreement")  between SafeNet and Cylink.  The
Registration  Statement includes a proxy statement of Cylink with respect to its
shareholders'  vote on the proposed Merger,  a proxy statement of SafeNet,  Inc.
with respect to its  shareholders'  vote on the proposed Merger and a prospectus
of  SafeNet  with  respect  to the  SafeNet  shares  to be  issued  to  Cylink's
shareholders in the proposed merger (the "Proxy  Statement/Prospectus").  Cylink
Corporation  and SafeNet,  Inc. mailed the Proxy  Statement/Prospectus  to their
respective shareholders on December 31, 2002. Investors and security holders are
urged to read the  Registration  Statement  and the  Proxy  Statement/Prospectus
carefully. The Registration Statement and the Proxy Statement/Prospectus contain
important  information about Cylink,  SafeNet, the Merger, the Merger Agreement,
the persons  soliciting  proxies relating to the Merger,  their interests in the
Merger,  and related  matters.  Investors  and security  holders may obtain free
copies  of  these  documents  through  the  Web  site  maintained  by the SEC at
http://www.sec.gov.  In addition  to the  Registration  Statement  and the Proxy
Statement/Prospectus,  Cylink and SafeNet  file  annual,  quarterly  and special
reports,  proxy statements and other  information with the SEC. You may read and
copy any reports, statements, or other information filed by Cylink or SafeNet at
the SEC public reference rooms at 450 Fifth Street, N.W., Washington, D.C. 20549
or at any of the SEC's  other  public  reference  rooms in New York,  N.Y.,  and
Chicago,  Ill. Please call the SEC at 1-800-SEC-0330 for further  information on
the public reference rooms. Cylink's and SafeNet's filings with the SEC are also
available to the public from commercial  document-retrieval  services and at the
Web site maintained by the SEC at http://www.sec.gov.

                                    --more--



ISS Recommends Cylink Shareholders Approve
1/28/03--page 4


Participants in Solicitation

Cylink,  its  directors,   executive  officers  and  certain  other  members  of
management and employees and Mackenzie Partners are currently soliciting proxies
from  Cylink  shareholders  in favor of the  approval  of the Merger and related
matters. SafeNet, its directors, executive officers and certain other members of
management  and  employees  are  currently   soliciting   proxies  from  SafeNet
shareholders  in  favor of the  approval  of the  Merger  and  related  matters.
Information  concerning the participants in these  solicitations is set forth in
the Registration Statement and the Proxy Statement/ Prospectus and investors are
urged to read such Registration Statement and the Proxy Statement/Prospectus.

                                      # # #



                                                   Filed Under Rule  425
                                                   by Cylink Corporation
                                                   Sec File No. 0-27742
                                                   (Posted on Cylink Corporation
                                                   website-www.cylink.com)


                                Reminder Mailing
                             Two easy ways to vote

- --------------------------------------------------------------------------------

Vote by Telephone

It's fast, convenient and your vote is immediately confirmed and posted.

Using a  touch-tone  telephone  call the  toll-free  number  located in the gray
shaded box on the upper left side of your Voting Instruction Form.

                            Follow the 4 easy steps:

1.   Read the accompanying Proxy Statement and Voting Instruction Form.

2.   Call the toll-free phone number.

3.   Enter your 12-digit  control  number  located in the gray shaded box on the
     right side of your Voting Instruction Form.

4.   Follow the simple instructions.

                             Make Your Vote Count!

- --------------------------------------------------------------------------------

- --------------------------------------------------------------------------------
Vote by Internet

It's fast,  convenient  and your vote is immediately  confirmed and posted.  You
will also have the  option to  register  to  receive  future  materials  via the
Internet, when available.

                               WWW.PROXYVOTE.COM

                            Follow the 4 easy steps:

1.   Read the accompanying Proxy Statement and Voting Instruction Form.

2.   Go to website www.proxyvote.com.

3.   Enter your 12-digit  control  number  located in the gray shaded box on the
     right side of your Voting Instruction Form.

4.   Follow the simple instructions.

                             Make Your Vote Count!

- --------------------------------------------------------------------------------

                                And Remember...
    Your vote by telephone or Internet will help your company save money!!!
      Do not return your Voting Form if you voted by Telephone or Internet.