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PGPfreeware 6.5.1i and 6.5.2a

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Year released:
[www].se [ftp].se [mirror].us [mirror].de
PGPfreeware652a.sit_.hqx (7.44 MB)
MD5: a5fef7f0deef3a95b9b460f7549fdb12
For Mac OS 8 - 8.1 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de
PGP651IntFreeware.hqx (8.67 MB)
MD5: c4ee57d864b2dfcc7eeeda5917740e3d
For Mac OS 8 - 8.1 - Mac OS 9
[www].se [ftp].se [mirror].us [mirror].de (13.21 MB)
MD5: 1edbbf6aa638b9c16d80de86e4ca96a8
For Mac OS 8 - 8.1 - Mac OS 9
This app works with: SheepShaver,

PGPfreeware was Network Associates' encryption program, implementing the "Pretty Good Privacy" system for signing and encrypting text, email and data.

Other PGPfreeware versions on Macintosh Garden: PGPfreeware 7.0.3.

Due to legal issues in the 1990s, PGP tools were released in two versions; PGP America and PGP International. Before the year 2000 it was illegal to export PGP America to other countries (except Canada!) as the program's encryption is considered munitions by the U.S. government's export controls. Likewise, the International version was illegal to use within the USA, as it implemented an algorithm for which a U.S. corporation held a patent. Meanwhile, it was a requirement that source code for the export version be published along with binaries, so source is available for the International but not U.S. version.

As time has now passed and the export restrictions are relaxed, the original export controls no longer apply, and both versions are therefore included in this listing for posterity;

It's also worth noting that the installer programs have a bug where they will scan all connected disks, including network and virtual volumes, so those with network discs connected should unmount them, and those in SheepShaver should turn off the file sharing function.

These were retrieved from multiple independent mirrors of PGP Inc.'s long-defunct FTP. There's plenty of reason to distrust these sources, however, all duplicate versions proved identical.

Additionally, PGP signatures were provided for the International versions, which matched the below signature (originally provided alongside the hqx file in a file called PGP651IntFreeware.hqx.sig, but this extension is not permitted on Macintosh Garden), which appears to stem from one of the real authors of the distribution. All that said, as obsolete cryptography abandonware you should understand that it is very likely not worthy of your trust!


Version: PGP 6.0.2





Additionally the source code associated with version 6.5.1i, retrieved from another third party mirror, is signed with this signature:

Version: PGP 6.5.1i


The American version does not include a signature for the outer sit.hqx file, but both versions include a signature within their respective self-extracted folders, which both appear to check out.

A trimmed down version of Network Associates' description of PGP from the included PGP User's Guide, and the feature list for this version from the Read Me file, follow:

About PGP

PGP is part of your organization’s security toolkit for protecting one of your most important assets: information. Corporations have traditionally put locks on their doors and file cabinets and require employees to show identification to prove that they are permitted access into various parts of the business site. PGP is a valuable tool to help you protect the security and integrity of your organization’s data and messages. For many companies, loss of confidentiality means loss of business.
Entire books have been written on the subject of implementing network security. The focus of this guide is on implementing PGP as a tool within your overall network security structure. PGP is merely one piece of an overall security system, but it is an extremely important one. PGP provides encryption, which protects data from the eyes of anyone for whom it was not intended, even those who can see the encrypted data. This protects information from both internal and external “outsiders.”

New Features in 6.5.1

  • 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 fully interoperable with the Gauntlet GVPN firewall/gateway 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 also been successfully tested with Cisco routers (requires Cisco IOS 12.0(5) or later with IPSec TripleDES Feature Pack), 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.
  • Self-Decrypting Archives. You may now encrypt files or folders into Self-Decrypting Archives (SDA) which can be sent to users who do not even have PGP. The archives are completely independent of any application, compressed and protected by PGP's strong cryptography. Using this feature without a passphrase will also allow you to create compact Self-Extracting Archives (SEA) which are not encrypted. The resulting archives run on both PowerPC and 68K Macs, and are encrypted using CAST.
  • Automated Freespace Wiping. PGP's Freespace Wipe feature now allows you to use AppleScript to automate wiping of the freespace on your disks. The AppleScript dictionary for this is located in PGPtools.
  • PGPmenu Improvements. PGPmenu has been entirely rewritten, and sports many new features. Configurable Command Key support allows you to invoke the Encrypt/Sign/Encrypt&Sign/Decrypt&Verify commands in third-party applications without even touching the mouse. The Empty Trash command in the Finder can now be turned into a Wipe Trash command to make sure that everything you throw away gets securely wiped. The cursor now provides animated progress during PGPmenu operations, and more.
  • Outlook Express support and Enhanced Email Integration. As part of the new PGPmenu, Outlook Express and Claris Emailer are now recognized as special applications in which PGPmenu will automatically grab the recipient email addresses whenever you invoke PGPmenu on a new email message window thus cutting out the step of specifying the recipient keys! The old Claris Emailer plugin has been removed now that PGPmenu has direct support for it.
  • 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.
  • HTTP Proxy Support. If your Macintosh is 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 the Internet control panel. This feature requires the installation of Internet Config for users not running MacOS 8.5 or greater.
  • Smart Word Wrapping. The word wrapping in PGP now automatically rewraps paragraphs and even quoted paragraphs resulting in much cleaner signed messages.

PGP Version 6.5.2a Enhancements

  • MacOS 9 Compatibility. PGP 6.5.2a provides compatibility with MacOS 9's Multiple Users feature.
  • Windows 2000 IPSec Interoperability. PGPnet can now establish VPN connections with properly configured Windows 2000 systems running the Microsoft High Encryption Pack.
  • HFS+ FreeSpace Wiping on Startup Volume. PGPtools now supports freespace wiping of HFS+ startup volumes.
  • Outlook Express 5.0 Support. In addition to our previous support for OE 4.5, PGP 6.5.2a now includes integrated support for the new Outlook Express 5.0!
Architecture: PPC

To install PGP on a Macintosh system, you must have:

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


ticky's picture
by ticky - 2020, August 1 - 6:07pm

As an addendum: I have scanned these archives and their contents using VirusBarrier 1.6.2 (with definitions from 2002, which I believe is the most modern possible scanner for OS 9) and they came up clean!

ticky's picture
by ticky - 2020, August 1 - 5:50am

That's true, but zip seemed like a poor choice and I haven't been able to get StuffIt to compress anything, so putting it in the description seems harmless! Smile

MikeTomTom's picture
by MikeTomTom - 2020, August 1 - 4:20am

originally provided alongside the hqx file in a file called PGP651IntFreeware.hqx.sig, but this extension is not permitted on Macintosh Garden

Thanks for the upload. You can place files such as the sig file into zip or sit archives, of course, and upload those OK.