RSA LABORATORIES                      PROGRAM LICENSE AGREEMENT                             Version 2.0                            March 16, 1994RSA LABORATORIES, A DIVISION OF RSA DATA SECURITY, INC. ("RSA")GRANTS YOU A LICENSE AS FOLLOWS TO THE "RSAREF" PROGRAM:1.   LICENSE. RSA grants you a non-exclusive, non-transferable,     perpetual (subject to the conditions of Section 8) license for     the "RSAREF" program (the "Program") and its associated     documentation, subject to all of the following terms and     conditions:     a.   to use the Program on any computer;     b.   to make copies of the Program for back-up purposes;     c.   to modify the Program in any manner for porting or          performance improvement purposes (subject to Section 2)          or to incorporate the Program into other computer programs           for your own personal or internal use, provided that you           provide RSA with a copy of any such modification or           Application Program by electronic mail, and grant RSA a          perpetual, royalty-free license to use and distribute such          modifications and Application Programs on the terms set          forth in this Agreement.     d.   to copy and distribute the Program and Application Programs          in accordance with the limitations set forth in Section 2."Application Programs" are programs which incorporate all or anyportion of the Program in any form. The restrictions imposed onApplication Programs in this Agreement shall not apply to anysoftware which, through the mere aggregation on distribution media,is co-located or stored with the Program.2.   LIMITATIONS ON LICENSE.     a.   RSA owns the Program and its associated documentation and          all copyrights therein. You may only use, copy, modify and          distribute the Program as expressly provided for in this          Agreement. You must reproduce and include this Agreement,          RSA's copyright notices and disclaimer of warranty on any          copy and its associated documentation. The Program and any           Application programs must be distributed with their source code.     b.   The Program may not be used directly for revenue-generating          purposes. You may not:          (i)  use the Program to provide services to others for which               you are compensated in any manner;          (ii) license or otherwise distribute any Application Program               in any manner that generates income to you, including               without limitation any income on account of license               fees, royalties, maintenance fees and upgrade fees; and          (iii) license or otherwise distribute any Application               Program without the express written acknowledgment of               the end user that the Program will not be used in               connection with any revenue-generating activity of the               end user.          Nothing in this paragraph prohibits you from using the          Program or any Application Program solely for internal          purposes on the premises of a business which is engaged in          revenue-generating activities.     c.   The Program, if modified, must carry prominent notices          stating that changes have been made, and the dates of any          such changes.      d.   Prior permission from RSA in writing is required for any          modifications that access the Program through ways other          than the published Program interface or for modifications          to the Program interface. RSA will grant all reasonable          requests for permission to make such modifications.3.   NO RSA OBLIGATION. You are solely responsible for all of your     costs and expenses incurred in connection with the distribution     of the Program or any Application Program hereunder, and RSA     shall have no liability, obligation or responsibility therefor.     RSA shall have no obligation to provide maintenance, support,     upgrades or new releases to you or to any distributee of the     Program or any Application Program.4.   NO WARRANTY OF PERFORMANCE. THE PROGRAM AND ITS ASSOCIATED     DOCUMENTATION ARE LICENSED "AS IS" WITHOUT WARRANTY AS TO THEIR     PERFORMANCE, MERCHANTABILITY OR FITNESS FOR ANY PARTICULAR     PURPOSE. THE ENTIRE RISK AS TO THE RESULTS AND PERFORMANCE OF     THE PROGRAM IS ASSUMED BY YOU AND YOUR DISTRIBUTEES. SHOULD THE     PROGRAM PROVE DEFECTIVE, YOU AND YOUR DISTRIBUTEES (AND NOT RSA)     ASSUME THE ENTIRE COST OF ALL NECESSARY SERVICING, REPAIR OR     CORRECTION.5.   LIMITATION OF LIABILITY. EXCEPT AS EXPRESSLY PROVIDED FOR IN     SECTION 6 HEREINUNDER, NEITHER RSA NOR ANY OTHER PERSON WHO HAS     BEEN INVOLVED IN THE CREATION, PRODUCTION, OR DELIVERY OF THE     PROGRAM SHALL BE LIABLE TO YOU OR TO ANY OTHER PERSON FOR ANY     DIRECT, INCIDENTAL OR CONSEQUENTIAL DAMAGES, EVEN IF RSA HAS BEEN     ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.6.   PATENT INFRINGEMENT OBLIGATION. Subject to the limitations set     forth below, RSA, at its own expense, shall: (i) defend, or at     its option settle, any claim, suit or proceeding against you on     the basis of infringement of any United States patent in the     field of cryptography by the unmodified Program; and (ii) pay any     final judgment or settlement entered against you on such issue in     any such suit or proceeding defended by RSA. The obligations of     RSA under this Section 6 are subject to: (i) RSA's having sole     control of the defense of any such claim, suit or proceeding;     (ii) your notifying RSA promptly in writing of each such claim,     suit or proceeding and giving RSA authority to proceed as stated     in this Section 6; and (iii) your giving RSA all information     known to you relating to such claim, suit or proceeding and     cooperating with RSA to defend any such claim, suit or     proceeding. RSA shall have no obligation under this Section 6     with respect to any claim to the extent it is based upon (a) use     of the Program as modified by any person other than RSA or use of     any Application Program, where use of the unmodified Program     would not constitute an infringement, or (b) use of the Program     in a manner other than that permitted by this Agreement. THIS     SECTION 6 SETS FORTH RSA'S ENTIRE OBLIGATION AND YOUR EXCLUSIVE     REMEDIES CONCERNING CLAIMS FOR PROPRIETARY RIGHTS INFRINGEMENT.     NOTE: Portions of the Program practice methods described in and     subject to U.S. Patents Nos. 4,200,770, 4,218,582 and 4,405,829,     and all foreign counterparts and equivalents, issued to Leland     Stanford Jr. University and to Massachusetts Institute of     Technology. Such patents are licensed to RSA by Public Key     Partners of Sunnyvale, California, the holder of exclusive     licensing rights. This Agreement does not grant or convey any     interest whatsoever in such patents.7.   RSAREF is a non-commercial publication of cryptographic     techniques. Portions of RSAREF have been published in the     International Security Handbook and the August 1992 issue of Dr.     Dobb's Journal. Privacy applications developed with RSAREF may be     subject to export controls. If you are located in the United States     and develop such applications, you are advised to consult with the     State Department's Office of Defense Trade Controls.8.   TERM. The license granted hereunder is effective until     terminated. You may terminate it at any time by destroying the     Program and its associated documentation. The termination of your     license will not result in the termination of the licenses of any     distributees who have received rights to the Program through you     so long as they are in compliance with the provisions of this     license.9.   GENERAL     a.   This Agreement shall be governed by the laws of the State of          California.     b.   Address all correspondence regarding this license to RSA's          electronic mail address <rsaref-administrator@rsa.com>, or          to               RSA Laboratories               ATTN: RSAREF Administrator               100 Marine Parkway, Suite 500               Redwood City, CA  94065