Blackphone plans more secure devices, bouyed by Snowden leaks

Leaks from the former contractor have raised awareness of privacy and users are reacting, says company executives

By , IDG News Service |  Security

Blackphone, the Swiss start-up that's launching a smartphone with encrypted communications, is planning a series of devices around the same idea, one of the company's co-founders said on Monday.

"It's not the only device we will ever do," said Jon Callas during an interview at the Mobile World Congress expo in Barcelona. "There'll be other security and privacy-enhanced mobile devices."

The Blackphone handset, which is being unveiled at the event, goes on sale in June for US$629. It looks like a typical Android smartphone and is based on a security-hardened version of the OS called "PrivatOS." Standard applications include secure calling and text messaging, encrypted file transfer and video chat.

Those communications functions will be based on technology from Silent Circle, a U.S. provider of secure messaging that was founded by Callas and Phil Zimmermann, who is best known as the creator of the PGP public-key encryption system. Zimmermann is working with Callas and executives from Androind-phone maker Geeksphone on the Blackphone.

"It's a phone whose existence is motivated by the need to protect your privacy," said Zimmermann. "Geeksphone knows how to build phones, Silent Circle knows how to protect privacy. We've added in some apps, integrated it all in, tightened the Android settings down and hardened it against attacks."

The secure communications channel is initiated after two devices -- either two Blackphones or a Blackphone and another device running a Silent Circle app -- connect and negotiate encryption keys. That step means communications between the two are encrypted and remain unintelligible to intermediates, including Silent Circle's own servers.

"We don't require that you trust us. Imagine if our servers fell into the wrong hands. What if the NSA confiscated our servers and installed them in Fort Meade, it wouldn't make any difference," said Zimmermann.

While similar communications are possible on a standard Android or iPhone running the Silent Circle app, using a Blackphone means the user doesn't have to worry so much about attacks to the hardware.

"You could just run the app, but then you have to worry about the rest of the platform," said Zimmermann. "For years I've been talking about how it isn't enough to write good crypto, you need a good platform. This is the first time I've been able to work on doing something to protect the platform."

Even before the Blackphone launches, Callas said he's seen a recent uptick in interest in Silent Circle's products. He attributes that to the series of leaks from former government security contractor Edward Snowden.

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