8-K

                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549

                                    FORM 8-K
              CURRENT REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
                         SECURITIES EXCHANGE ACT OF 1934

                                  April 3, 2002
                                 Date of Report
                        (Date of earliest event reported)

                               CYLINK CORPORATION
             (Exact name of registrant as specified in its charter)

           California                       0-27742               95-3891600
(State or other jurisdiction of      (Commission File No.)     (I.R.S. Employer
 incorporation or organization)                              Identification No.)

                                 3131 Jay Street
                              Santa Clara, CA 95054
                    (Address of principal executive offices)

                                 (408) 855-6000
              (Registrant's telephone number, including area code)


    Item 5. OTHER EVENTS

         On April 3,  2002,  Cylink  Corporation  ("Cylink")  announced  that it
expected  revenues  for  the  first  quarter,  which  ended  March  31st , to be
approximately $7.0 - 7.4 million, subject to adjustments during final closing of
the quarter.  In the same quarter last year,  the company  reported  revenues of
$12.6 million,  including  revenue of  approximately  $1.4 million from divested
subsidiaries.  The Company ended the quarter with cash and cash  equivalents  in
excess of $11 million, up from $9.6 million at December 31, 2001.


         Pursuant to the  requirements  of the Securities  Exchange Act of 1934,
Registrant  has duly  caused  this  report  to be  signed  on its  behalf by the
undersigned hereunto duly authorized.

                                           CYLINK CORPORATION

                                           /s/ R. Christopher Chillingworth
                                           -------------------------------------
                                           R. Christopher Chillingworth
                                           Chief Financial Officer
Date: April 3, 2002


                               CYLINK CORPORATION

                           Current Report on Form 8-K

                                INDEX TO EXHIBITS

Exhibit No.                Description
- -----------                -----------

5.1                 Press Release dated April 3, 2002.

EX-5.1

                              [Cylink Letterhead]


      Contact:
                  Chris Chillingworth               Howard Kalt
                  Chief Financial Officer           Principal
                  Cylink Corporation                Kalt Rosen & Co.
                  408/855-6000                      415/397-2686

                          CYLINK CORP. SAYS 1st QUARTER
                REVENUES WILL BE APPROXIMATELY $7.0 - 7.4 MILLION

         SANTA CLARA,  Calif.,  April 3, 2002--Cylink  Corp.  (NASDAQ:  CYLK), a
leading developer of e-business security solutions,  said today that it expected
revenues  for the first  quarter,  which ended March 31st , to be  approximately
$7.0 - 7.4 million,  subject to adjustments during final closing of the quarter.
In the same quarter last year, the company  reported  revenues of $12.6 million,
including revenue of approximately $1.4 million from divested subsidiaries.  The
Company  ended  the  quarter  with  cash and cash  equivalents  in excess of $11
million, up from $9.6 million at December 31, 2001.

      About Cylink

      Cylink  Corporation   develops,   markets  and  supports  a  comprehensive
portfolio  of hardware  and  software  security  products  for  mission-critical
private networks and business communications over the Internet. Founded in 1983,
the company's  solutions offer  competitive  advantages to customers by lowering
the cost of deploying and
      managing  secure,  reliable  private  networks,  while enabling use of the
Internet for trusted  transactions with business partners and customers.  Cylink
and its wholly owned  subsidiaries  serve Fortune 500  companies,  multinational
financial institutions, and government agencies worldwide. For more information,
visit the Company's web site at www.cylink.com.

         The statement in this announcement concerning estimated revenue results
for the  first  quarter  of 2002 is a forward  looking  statement,  it  involves
certain  risks  and  uncertainties,  and  actual  results  could  be  materially
different.  Among the factors that could cause actual revenue  results to differ
from the Company's  expectations are accounting  adjustments that may be made in
the final quarterly accounts, and other risk factors listed from time to time in
the company's SEC reports, including but not limited to the report on Form 10-K,
Forms 10-Q, and the Annual Report to shareholders.

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