OpenPGP is the most widely used email encryption standard. It is defined by the OpenPGP Working Group of the Internet Engineering Task Force (IETF) as a Proposed Standard in RFC 4880. OpenPGP was originally derived from the PGP software, created by Phil Zimmermann.
Gpg4usb is not available for Mac but there is one alternative that runs on macOS with similar functionality. The most popular Mac alternative is GPGTools, which is both free and Open Source.If that doesn't work for you, our users have ranked 4 alternatives to gpg4usb, but unfortunately only one is available for Mac. UPX homepage: the Ultimate Packer for eXecutables. UPX is a free, portable, extendable, high-performance executable packer for several executable formats. Please also see the Wikipedia entry for some more background info. We received some hints that the default key generation settings are not sufficient anymore. Gpg4usb was still generating DSA/El-Gamal Keys. Here is a press report of an experiment breaking a 932bit El-Gamal Crypto Key with 21 personal computers (252 cores) in 148.2 days. So we finally put out a release which generates safer keys by default.
Email encryption
Although OpenPGP’s main purpose is end-to-end encrypted email communication, it is also utilized for encrypted messaging and other use cases such as password managers.
To say it straight in only one sentence: gpg4usb is a very easy to use portable-application, which combines a simple text-editor with a GnuPG-frontend to write, encrypt and decrypt your text-messages and files. Gpg4usb should work on almost any computer you're working on, should it be a Linux-machine or even one with a Microsoft-OS running.
Gpg4usb App
For all operating systems
OpenPGP is available for all major platforms, such as Windows, Mac OS, GNU/Linux, Android, and iOS.
Standing the test of time
Gpg4usb Mac Download App
OpenPGP was standardized in 1997 and since then continuously improved. As far as we know, intelligence organizations aren’t able to break it.