Talk:Deniable encryption
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[edit] Bruce Schener's 'Deniable File System' link
Recently a link "Deniable File System" was recently added to the 'see also' section, but I believe it's rather loosely related to the topic and not very informative and reverted it for now. In any case, if anyone wants to re-add it, make sure you add it under the 'External links' section. -- intgr 13:10, 9 June 2006 (UTC)
[edit] Deniability not feasible
"In practice, deniable encryption is very difficult to execute. ... It is nearly impossible to construct keys and ciphertexts for modern block ciphers such that one ciphertext will decrypt to two comprehensible plaintexts."
- That's not true. The idea is not to take an existing encryption scheme and make it deniable, but to use new algorithms that incorporate deniablility. In this sense deniable encryption is decidedly possible and practially feasible. [1] Arvindn 02:34, 11 Oct 2004 (UTC)
- OK, I'm removing that last paragraph until I get a chance to rework it. Decrypt3 15:29, Oct 11, 2004 (UTC)
[edit] questions
Hello, could someone add some other (than one-time pad) simple example of construction of such cipher? Also, I also don't understand, can this also be used as protection from brute-force cryptanalysis, because you don't know which message is the right one? Samohyl Jan 07:35, 28 Feb 2005 (UTC)
[edit] CDMA as deniable encryption?
CDMA mobile phones essentially combine several different messages (from the tower to the handsets or vice versa) in the air, and the decoding process allows each phone to use its unique code to pick out a message intended for it, or to detect that it isn't being addressed, from a shared bitstream. Could this be considered a form of deniable encryption (since the same bitstream can be decoded to produce different messages), and if so, perhaps it should be referenced in this article? Mr2001 3 July 2005 06:44 (UTC)
[edit] Example
Do we have to use negative examples of why someone would want deniable encryption? Why can't we use positive examples like free-speech advocates in China instead? —The preceding unsigned comment was added by 192.43.65.245 (talk • contribs) 19:18, 18 May 2006 (UTC)
- I don't know about a better example, but it would be problematic, from the NPOV, to use a specific political example (And I do abhor China's free-speech problems, by the way!) — Matt Crypto 21:02, 18 May 2006 (UTC)
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- I'm not a wikipedian, but from a layman's perspective, the current example seems VERY point-of-view. Probably a military example would be the best NPOV, without identifying the military organization. -Bluenail
