PGP creator offers VoIP crypto to Windows users

Zfone reignites privacy debate

Philip Zimmermann, best known as the developer of the Pretty Good Privacy (PGP) encryption algorithm, has released a new public beta of a software package designed to encrypt VoIP calls.Zfone uses Diffie-Helman to generate a per-session key for IP Telephony calls using a protocol called ZRTP, that Zimmermann says is superior to other approaches.…