     What's New in PGP Software Developer's Kit
		   Version 1.7.8
     Copyright (c) 1990-2000 by Network Associates 
   Technology, Inc., and its Affiliated Companies. 
               All Rights Reserved.

Thank you for using Network Associates' products.
This What's New file contains important information
regarding the PGPsdk. Network Associates
strongly recommends that you read this entire
document.

Network Associates welcomes your comments and
suggestions. Please use the information provided in
this file to contact us.

Warning: Export of this software may be restricted
by the U.S. Government.

___________________
WHAT'S IN THIS FILE

- Fixes in this Release
- New Features
- Documentation
- System Requirements
- Contacting Network Associates


_____________________
FIXES IN THIS RELEASE

*  This release corrects a security-related bug with
   Additional Decryption Keys (ADKs) that may allow
   sophisticated attackers to add unauthorized ADK 
   key IDs to the unhashed areas of PGP public keys.

   For more information about this bug, please 
   review the PGP ADK Security Advisory available
   on www.pgp.com. 

____________
NEW FEATURES 

1. Expanded X.509 certificate support.
   X.509 certificate requests can be created for 
   existing PGP keys.  Additionally, existing X.509 
   certificates can be imported onto a PGP key ring.
   The PGPsdk recognizes X.509 certificate revocation 
   lists (CRLs) and incorporates the revoked certificate 
   information therein into validity calculations for 
   imported X.509 certificates.

2. X.509 Certificate Authority (CA) support.
   The PGPsdk supports performing online certificate 
   requests and retrievals, CRL retrievals from Network
   Associates Net Tools PKI 1.0, VeriSign OnSite PKI 4.0, 
   and Entrust PKI 4.0 (using the Entrust VPN Connector
   4.1).

3. X.509 TLS support. 
   X.509 certificates and certificate chains can now 
   be used to authenticate a PGP Transport Layer 
   Security (TLS) session.

4. X.509 private key import. 
   X.509 private keys created with other products (e.g.,
   web browsers, etc.) can now be imported into a PGP 
   keyring using the PKCS #8 or #12 interchange formats.

5. Low-level session key support.   
   The session key used to encrypt a PGP message can
   now be retrieved during encryption and a message 
   can be explicitly encrypted using a given session 
   key. This feature allows for decrypting a specific 
   message without explicit knowledge of the passphrase
   for the private key if the session key for 
   the message is known.

6. Random pool security enhancement.
   Additions to the random pool are bufferred
   internally to impede state-following attacks.

7. Miscellaneous.
   - DSS key sizes are now forced to be multiple of
     64 bits as required by the standard.
   - The internal limit on the number of outstanding
     key sets have been increased approximately five
     fold.

_____________
DOCUMENTATION

Also included with this release are the following 
manuals, which can be viewed on-line as well 
as printed:

* PGPsdk User's Guide
* PGPsdk Reference Guide 

Each document is saved in Adobe Acrobat Portable 
Document Format (.PDF). You can view and print these 
documents with Adobe's Acrobat Reader. PDF files 
can include hypertext links and  other navigation 
features to assist you in finding answers to 
questions about your Network Associates product.

To download Adobe Acrobat Reader from the World Wide
Web, visit Adobe's Web site at:

http://www.adobe.com/

Documentation feedback is welcome. Send e-mail to
tns_documentation@nai.com.


___________________
SYSTEM REQUIREMENTS

Windows:

- Windows 95 OSR2, 98, or NT 4.0 with Service Pack 
   3/4/5
- 32 MB RAM

Macintosh:

- System 7.6.1 or later.
- Power Macintosh (PowerPC processor required).
- 32 MB RAM

Solaris/Sparc:

- Solaris 2.5.1, 2.6, or 2.7

Linux/x86:

- Linux kernel 2.0 or later.


_____________________________
CONTACTING NETWORK ASSOCIATES

You may direct all questions, comments, or requests 
concerning the software you purchased, your registration 
status, or similar issues to the Network Associates 
Customer Service department at the addresses or phone 
numbers listed below.

Contact the Network Associates Customer Service department
between 8:00 a.m. and 8:00 p.m. Central Time, Monday 
through Friday, at:

     Network Associates Customer Service
     4099 McEwen Road, Suite 500
     Dallas, Texas 75244

     Contact information for corporate-licensed
     customers:

     Phone:  (972) 308-9960 
     Email:  services_corporate_division@nai.com
     Web:    http://support.nai.com

     Contact information for retail licensed
     customers:

     Phone:  (972) 308-9960
     Email:  cust_care@nai.com
     Web:    http://www.pgp.com


Send correspondence to the following
Network Associates location:

     Network Associates Corporate Headquarters
     3965 Freedom Circle
     McCandless Towers
     Santa Clara, CA 95054

Or, you can receive online assistance through
any of the following resources:

 1.  World Wide Web:  http://support.nai.com

 2.  Telephone technical support

     Corporate-licensed customers: (972) 308-9960

     Contact Network Associates Customer Service for 
     information about technical support 
     subscription plans.

     Retail-licensed customers:    (972) 855-7044


To provide the answers you need quickly and
efficiently, the Network Associates technical
support staff needs some information about your
computer and your software. Please have this
information ready when you call:

- Program name and version number
- Computer brand and model
- Any additional hardware or peripherals connected 
  to your computer
- Operating system type and version numbers
- Network name, operating system, and version
- Network card installed, where applicable
- Modem manufacturer, model, and speed, where 
  applicable
- Relevant browsers or applications and their version
  numbers, where applicable
- How to reproduce your problem: when it occurs,
  whether you can reproduce it regularly, and under 
  what conditions
- Information needed to contact you by voice, fax,
  or e-mail

We also seek and appreciate general feedback.


* FOR PRODUCT UPGRADES *

Network Associates has a worldwide range of
partnerships and reseller relationships with
hundreds of independent vendors, each of which
can provide you with consulting services, sales
advice, and product support for Network
Associates software. For assistance in locating a
local reseller, you can contact Network Associates 
Customer Service at (972) 308-9960.


* FOR REPORTING PROBLEMS *

Network Associates prides itself on delivering a
high-quality product. If you find any problems,
please take a moment to review the contents of this
file. If the problem you've encountered is
documented, there is no need to report the problem
to Network Associates.

If you find any feature that does not appear to
function properly on your system, or if you believe
an application would benefit greatly from
enhancement, please contact Network Associates with
your suggestions or concerns.


* FOR ON-SITE TRAINING INFORMATION *

Contact Network Associates Customer Service at
(800) 338-8754.