whatsnew.txt

vc环境下的pgp源码

  What's New in PGP Desktop Security Version 6.5.1
     for Windows 95, Windows 98, and Windows NT
     Copyright (c) 1990-99 by Networks 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 PGP Desktop Security. 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

- New Features
- Documentation
- System Requirements
- Known Issues 
- Year 2000 Compliance
- Contacting Network Associates

_____________________
NEW FEATURES IN 6.5.1

1.  PGPnet. PGPnet is a landmark product in the
    history of PGP. PGPnet secures all TCP/IP
    communications between itself and any other
    machine running PGPnet. It is also highly
    interoperable with the Gauntlet GVPN
    firewall/gateway product family providing 
    a complete solution for corporate remote 
    access VPNs using the industry standard 
    IPSEC (Internet Protocol Security) and IKE 
    (Internet Key Exchange) protocols. PGPnet has 
    been successfully tested with Cisco routers 
    (requires Cisco IOS 12.0(5) or later with 
    IPSec TripleDES), Linux FreeS/WAN, and many 
    others.  PGPnet is also the first IPSec product
    to fully support the use of OpenPGP keys for 
    authentication in addition to X.509.

2.  Self-Decrypting Archives. You may now encrypt
    files or folders into Self-Decrypting Archives
    (SDA) which can be used by users who do not even
    have PGP. The archives are completely independent
    of any application, compressed and protected by
    PGP's strong cryptography.

3.  X.509 Certificate and CA Support. PGP is now 
    able to interoperate with the X.509 certificate
    format. This is the format used by most web
    browsers for securing the transfer of web pages.
    PGP supports the request of certificates from
    Network Associates' Net Tools PKI, VeriSign's
    OnSite, and Entrust certificate authorities.
    X.509 certificates are analogous to a PGP
    signature, so you can even request X.509
    certificates on your existing PGP key. This
    feature can also be used to interoperate with
    existing VPN solutions based on X.509.

4.  Integrated PGP Command Line. This version
    incorporates the popular command line version of
    PGP for Windows platforms. This product provides
    you a convenient way to integrate PGP with
    other Windows applications and automated processes
    on your desktop system. Please note that this 
    is intended for single user/workstation use. For 
    use on servers, customers are required to purchase 
    the PGP Command Line/Batch Server product. Please 
    contact your local Network Associates Sales
    representative for more information.

5.  Automated Freespace Wiping. PGP's Freespace Wipe
    feature now allows you to use the Windows Task
    Scheduler to schedule periodic secure wiping 
    of the freespace on your disk.

6.  Hotkeys. The Use Current Window feature has been
    significantly enhanced by the addition of Hotkeys.
    By pressing the configured key combination, the
    Encrypt/Decrypt/Sign functions can be 
    automatically invoked in zero clicks without 
    using PGPtray.

7.  Fingerprint Word List. When verifying a PGP public
    key fingerprint, you can now choose to view the
    fingerprint as a word list instead of hexadecimal
    characters. The word list in the fingerprint text
    box is made up of special authentication words that
    PGP uses and are carefully selected to be phonetically
    distinct and easy to understand without phonetic
    ambiguity.

8.  Support for Outlook 2000 and Outlook Express 5.0.
    This version of PGP adds support for sending and 
    receiving encrypted e-mail in Microsoft Outlook 2000 
    and Outlook Express 5.0.

9.  HTTP Proxy Support. If you are behind a corporate
    firewall with an HTTP proxy server, PGP now supports
    accessing HTTP keyservers through the proxy.  To use
    this feature, you must configure the proxy server
    address in your Internet Explorer preferences.

10. Smart Word Wrapping. The word wrapping in PGP now
    automatically rewraps paragraphs and even quoted
    paragraphs resulting in much cleaner signed messages.


_____________
DOCUMENTATION

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

* Introduction to Cryptography 
* PGP Administrator's Guide
* PGP Installation Guide
* PGP User's 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/prodindex/acrobat/readstep.html

This release also includes integrated online help
in Microsoft Windows Help format:

* Online help:
  - PGP online help
  - PGPdisk online help  
  - PGPnet online help

Documentation feedback is welcome. Send e-mail to
[e-mail].

___________________
SYSTEM REQUIREMENTS

To install PGP on a Windows 95, 98, or NT system,
you must have:
- Windows 95, 98, or NT 4.0 with Service Pack 3/4/5
- 32 MB RAM
- 16 MB hard disk space for the Client install

If you plan to run PGPnet on the system, you must 
also have:

- Microsoft TCP/IP
- A compatible LAN/WAN network adapter 

Note: PGPnet functionality is not available for 
users of Windows 95a (the original release of
Windows 95). PGPnet supports Windows 95b (OSR2),
Windows 98 and Windows NT 4.0.
 
____________
KNOWN ISSUES

*PGP ISSUES*

1.  The maximum size for RSA keys is 2048 bits. This
    is due to limitations in the RSA libraries and 
    our desire to remain backward-compatible with 
    previous versions of PGP. (Some previous versions 
    of PGP did function with large RSA keys, but 
    creation of these keys has never been supported.)

2.  Mismatching your keyring files can result in 
    data loss. Your public keyring file and private 
    keyring file must be kept in sync.  If, for 
    instance, you select a public keyring file that
    does not contain the public portion of your 
    private key and do not also change the private 
    keyring to the corresponding file, you and 
    others will not be able to encrypt to exported 
    versions of your key after that time. In most 
    cases, simply updating your key from a public 
    copy on a keyserver will fix this.  However, it 
    is recommended that the keyring files always be
    kept in sync. A future version is expected 
    to correct this issue.

3.  Using a Split Key as a public key for PGPdisk 
    will not allow reconstitution of the key through 
    the usual dialog provided for reconstituting 
    split keys. To use such a key to open a PGPdisk, 
    you must first rejoin the key in PGPkeys.

4.  Some PGP Versions 6.0 and later features are 
    incompatible with previous versions of PGP, so 
    we feature a "compatible" export format that 
    strips incompatible features such as Photo IDs 
    and X.509 certificates from keys. Selecting 
    "Include 6.X Extensions" in the Export dialog 
    enables these features to be exported. By 
    default, we export in compatible mode. You 
    may change the default in the Advanced 
    preferences dialog. When sending a key to a 
    PGP Certificate Server Version 2.0 or above, 
    Photo IDs always accompany the key. The default 
    LDAP server in PGP 6.x supports this.

5.  Sometimes, after a PGPdisk volume is unmounted 
    and placed in the Recycle Bin and the Bin is 
    emptied, Windows reports that the drive letter