Speech privacy technophobes need not apply

Anyone can download Speak Freely, enable its essentially unbreakable encryption, and then talk telephone-style via the Internet with any other person in the world with a similar installation. The conversation will enjoy complete privacy because every utterance is encrypted on-the-fly before being transmitted. The software costs nothing, and because it is installed locally, it does not go through any vendor's servers (as is the case with much commercial software that offers voice-over-IP, or VoIP, services), which could act as convenient interception points. Users can select the encryption algorithm they like (Blowfish, 128-bit IDEA, DES, or even a concatenation of two or more of these) as well as their encryption keys for each conversation; they could even change encryption during the course of the conversation. Less user-friendly, though comparably effective for voice encryption over the Internet, are other free software packages such as Nautilus (which offers triple DES, IDEA, and Blowfish encryption) and Pretty-Good Privacy (PGP) Voice, both of which are downloadable from numerous sources.