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- Subliminal_channel abstract "In cryptography, subliminal channels are covert channels that can be used to communicate secretly in normal looking communication over an insecure channel. Subliminal channels in digital signature crypto systems were found in 1984 by Gustavus Simmons.Simmons describes how the dilemma can be solved through parameter substitution in digital signature algorithms. Signature algorithms like ElGamal and DSA have parameters which must be set with random information. He shows how one can make use of these parameters to send a message subliminally. Because the algorithm's signature creation procedure is unchanged, the signature remains verifiable and indistinguishable from a normal signature. Therefore it is hard to detect if the subliminal channel is used.Subliminal channels can be classified into broadband and narrow-band channel. The broadband channel uses almost all available bits. Every channel which uses fewer bits is called a narrow-band channel. The additional used bits are needed for further protection, e.g., impersonation.The broadband and the narrow-band channels can use different algorithm parameters. A narrow-band channel cannot transport maximal information, but it preserves the authentication key. Further developments enhance the subliminal channel, e.g., allow for establishing a broadband channel without the need to agree on an authentication key in advance. Other developments try to avoid the entire subliminal channel.".
- Subliminal_channel wikiPageExternalLink its_seminar_ss09.html.
- Subliminal_channel wikiPageID "23723266".
- Subliminal_channel wikiPageRevisionID "582260264".
- Subliminal_channel hasPhotoCollection Subliminal_channel.
- Subliminal_channel subject Category:Cryptography.
- Subliminal_channel comment "In cryptography, subliminal channels are covert channels that can be used to communicate secretly in normal looking communication over an insecure channel. Subliminal channels in digital signature crypto systems were found in 1984 by Gustavus Simmons.Simmons describes how the dilemma can be solved through parameter substitution in digital signature algorithms. Signature algorithms like ElGamal and DSA have parameters which must be set with random information.".
- Subliminal_channel label "Subliminal channel".
- Subliminal_channel sameAs m.06zst2h.
- Subliminal_channel sameAs Q7631517.
- Subliminal_channel sameAs Q7631517.
- Subliminal_channel wasDerivedFrom Subliminal_channel?oldid=582260264.
- Subliminal_channel isPrimaryTopicOf Subliminal_channel.