TorChat is an instant messaging protocol based upon Tor hidden services, making it perhaps the only instant messaging protocol with any substantive resistance to traffic analysis. [more inside]
posted by jeffburdges on Jun 18, 2012 - 19 comments

CryptDB executes database queries over encrypted data without ever decrypting it. [more inside]
posted by jeffburdges on Dec 20, 2011 - 37 comments

Described as 'cryptography's holy grail', Homomorphic Encryption/Computation is a form of encryption where specific algebraic operations on the plaintext translate into different algebraic operations on the ciphertext, allowing the plaintext's owner to 'outsource' computations to untrusted machines. [more inside]
posted by jeffburdges on Aug 9, 2011 - 17 comments

An animated Flash demonstration of the Advanced Encryption Standard. [more inside]
posted by grouse on Oct 11, 2010 - 20 comments

A stick figure guide to the Advanced Encryption Standard. [via Bruce Schneier]
posted by Electric Dragon on Sep 26, 2009 - 21 comments

War on Civil Liberties Watch: Usable encryption is in deep doo-doo. A new poll finds 72% of Americans now supporting a ban on unbreakable encryption. (Apparantly breakable, and thus useless, encryption is just fine.) Besides the obvious fact that this stuff is already out there and cannot be taken back, particularly from non-US citizens who don't give a damn about our laws (such as, say, the exact people we're trying to defeat), is there any hope that the courts will find any such new laws unconstitutional?
posted by aaron on Sep 18, 2001 - 36 comments

Terrorism's first win? Bye-Bye crypto. The rubble is still burning and the Republicans are ready to strip of our right to use crypto products. Opportunists feeding off fear. That's how you win at the terrorist game.
posted by skallas on Sep 13, 2001 - 51 comments

The crypto used in 802.11 wireless networking has been cracked. The crack is devastating; it's fast and passive. Simply by listening, the 40-bit key can be cracked in 15 minutes. Worse, the crack scales linearly with the number of bits in the key, so raising the key length to 128 bits would raise the crack time to about an hour. 802.11 is used in such products as the Linksys Etherfast Wireless and the Apple Airport. From now on those products should be considered to be completely insecure.
posted by Steven Den Beste on Aug 3, 2001 - 16 comments

The battle for unrestricted encryption continues. Professor Bernstein won't rest; he's not going to let this go. More power to him and let's hope he ultimately wins. [He's challenging the US government restrictions on private encryption on free-speech grounds, and so far he's won in every court where the case has been heard. The government has been using delaying actions, and their relaxation of restrictions may partially have been in hopes he'd give up, leaving them still capable of some control. He's not going to, though. He's got blood in his eye, so to speak.]
posted by Steven Den Beste on Jan 8, 2001 - 0 comments