GPGTools Release Unified Installer for MacGPG/GPGMail
The guys at GPGTools have taken control of the MacGPG2, GPGMail, GPG Keychain Access and GPG Services projects, and have released a single unified installer that installs all of these apps. They are maintaining these tools, which are all 64-bit and Snow Leopard compatible. The package also include Enigmail, a GPG-compatible plugin for Thunderbird (Mozilla’s free email client).
GPG is an open source alternative to PGP’s suite of public key encryption software (PGP Desktop), which allows you to encrypt/decrypt files and emails and create/validate digital signatures.
For more information, check out my tutorial on using GPGMail to send encrypted emails on Mac OS X.