New Signal App Brings Encrypted Calling to iPhone

iPhone users concerned about government surveillance efforts putting unencrypted calls at risk now have a free app at their disposal that brings secure communication to the Apple phone. Open WhisperSystems, developers of RedPhone for Android, have developed a similar app for iPhone called Signal,...

[SECURITY] Fedora 18 Update: libzrtpcpp-2.3.4-1.fc18

This package provides a library that adds ZRTP support to the GNU ccRTP stack. Phil Zimmermann developed ZRTP to allow ad-hoc, easy to use key negotiation to setup Secure RTP SRTP sessions. GNU ZRTP together with GNU ccRTP 1.5.0 or later provides a ZRTP implementation that can be directly embedde...

Several Flaws Discovered in ZRTPCPP Library Used in Secure Phone Apps

A security researcher has uncovered a number of serious vulnerabilities in one of the core security components of several secure telephony applications, including the Silent Circle system developed by PGP creator Phil Zimmermann. The vulnerabilities in the GNU ZRTPCPP library already have been...

Phil Zimmermann on Mobile Encryption and Privacy

Dennis Fisher talks with cryptographer and PGP inventor Phil Zimmermann about the specter of mobile eavesdropping, his new venture Silent Circle and how the threat landscape has changed in recent years. Download: digitalunderground110 Related: Phil Zimmermann: ‘We Really, Really Don’t Have the...

Phil Zimmermann Returns With Silent Circle Voice and Data Privacy

If you use encryption products to protect your data or communications, you owe a debt of gratitude to Phil Zimmermann. Now, Zimmermann is aiming to collect on that debt with his new company, Silent Circle, a startup that will provide secure phone, email and SMS communications. Zimmermann has been...