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ICITS
2009
13 years 3 months ago
On the Security of Pseudorandomized Information-Theoretically Secure Schemes
In this article, we discuss a naive method of randomness reduction for cryptographic schemes, which replaces the required perfect randomness with output distribution of a computat...
Koji Nuida, Goichiro Hanaoka
CRYPTO
1999
Springer
152views Cryptology» more  CRYPTO 1999»
13 years 9 months ago
An Information Theoretic Analysis of Rooted-Tree Based Secure Multicast Key Distribution Schemes
Several variations of rooted tree based solutions have been recently proposed for member revocation in multicast communications [18, 19, 20, 21]. In this paper, we show that by ass...
Radha Poovendran, John S. Baras
IH
1998
Springer
13 years 9 months ago
An Information-Theoretic Model for Steganography
An information-theoretic model for steganography with passive adversaries is proposed. The adversary's task of distinguishing between an innocent cover message C and a modi e...
Christian Cachin
IH
2005
Springer
13 years 11 months ago
Information-Theoretic Analysis of Security in Side-Informed Data Hiding
Abstract. In this paper a novel theoretical security analysis will be presented for data hiding methods with side-information, based on Costa’s dirty paper scheme. We quantify th...
Luis Pérez-Freire, Pedro Comesaña, F...