Encrypted Cell Phone Hits the Market
notshannon writes "Reuters
reports
about a new cell phone which automatically
encrypts communications. Of course, the
matching handset will decrypt the message.
Security doesn't come cheap, around $4000
per pair, but it's probably as reliable as anyone
in these parts could wish. Favorite quote:
'We allow everyone to check the security for themselves, because we're the only ones who publish the source code,' said Rop Gonggrijp at Amsterdam-based NAH6.
Amusingly, the article cites government.nl and not
nsa.gov as the world's most prolific phone tapper."
see this page for further information (in English).
I noticed that your CryptoPhone is based on Windows CE / PocketPC. Isn't this a security risk?
The current version of the CryptoPhone runs on top of a heavily modified and stripped down Microsoft PocketPC2002 ROM. The reason is that we wanted an affordable and well researched platform that offered sufficient performance for the speech encoding and crypto functions.A Pocket PC based system was chosen as the first platform for CryptoPhone because it was the only sufficiently fast device allowed us to do software integrity protection in ROM and the stripping of unnecessary functions.
The only commercially available alternative at the time of the necessary development decision was Symbian. Symbian is even more closed source (Windows CE is open source for developers in most parts) and was available only on a more expensive hardware platform. There was (and still is) no viable mass-market Embedded Linux based hardware with sufficient performance, stability, hardware integration and availability on the market at decision time, so we were not able to pursue this alternative.
We are aware that there are risks associated with using any Windows platform and we have taken a number of measures to mitigate these risks as best we could. We removed applications, communication stacks and system parts that are unnecessary for the CryptoPhone operation and which may cause potential security problems. You should not install third party software on the CryptoPhone to prevent software based attacks on the firmware integrity. The firmware update mechanism is cryptographically secured.
"for doing a PGP extension to Mailman."
PGPi itself always had the PGPFone module, which can either encrypt a telephone line (your modem dials their modem) or handle internet calls (useful for people whose families are abroad)
Download it here, including source-code.
Some quotes from Phil Zimmerman, author of PGP (emphasis mine):
Don't blame me, I didn't vote for either of them!