Disappearing Cryptography: Information Hiding: Steganography & Watermarking
Disappearing Cryptography: Information Hiding: Steganography & Watermarking
Authentication in 802.11 LANs using a covert side channel
ICC'09 Proceedings of the 2009 IEEE international conference on Communications
Steganography in streaming multimedia over networks
Transactions on Data Hiding and Multimedia Security VII
An 802.11 MAC layer covert channel
Wireless Communications & Mobile Computing
SILENTKNOCK: practical, provably undetectable authentication
ESORICS'07 Proceedings of the 12th European conference on Research in Computer Security
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It is sometimes desirable to allow access to open ports on a firerewall only to authorized external users and present closed ports to all others. We examine ways to construct an authentication service to achieve this goal, and then examine one such method, "port" knocking,and its existing implementations, in detail. We improve upon these existing implementations by presenting a novel port knocking architecture that provides strong authentication while addressing the weaknesses of existing port knocking systems.