| 8.3.2007 10:52 AM |
| Need for Deniable Encryption | |
| Posted by: Bernd Roellgen |
| Posted in: "English" |
Joerg Moellenkamp wrote on March 02, 2007 the following:
"There is a good reason to develop Deniable Encryption. According to a blog entry of fefe US law enforcement agencies are allowed to copy your harddisk and to demand to get the passwords for encrypted files when you want to enter the US. Reportedly the border control is authorized to put you in coercive detention to gather the password. So you need an encryption, that is not detectable or you need two notebooks. One you use to store your confidential data and one sanitized from all confidential data with only the files you need while you visit the US. PS: Well, nice sideeffect, it would be very easy to put someone into long detention: Send him a long encrypted mail. But encrypt it with a secret key unknown to the person"
Direct link:
http://www.c0t0d0s0.org/archives/2831-The-desperate-need-for-deniable-encryption.html
"Deniable Encryption" makes it possible to decrypt an encrypted message to two or more different plaintexts, depending on the key. It is thus possible to decrypt ciphertext to a harmless message with key A as well as to decrypt the ciphertext to a totally different message using key B. As a matter of consequence, it is impossible to prove the existence of a potentially harmful message without the proper encryption key.
There seems to be the need for encryption tools that do a little more than just to encrypt files or file hosted volumes. We'll have to think about adding pretty useful mechanisms to increase usability of our products.
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