Itkis, Gene(Boston University Computer Science Department, 2003-02-11)
We propose a new notion of cryptographic tamper evidence. A tamper-evident signature scheme provides an additional procedure Div which detects tampering: given two signatures, Div can determine whether one of them was ...
Hamandi, Hani; Itkis, Gene(Boston University Computer Science Department, 2004-04-27)
Group communication is as an important functionality, which needs to be supported by various communication technologies. Applications of group communication include IP (or application-level) multicast, wireless and/or ...
Itkis, Gene; Maiss, Arwa(Boston University Computer Science Department, 2004-04-27)
Usual password schemes suffer from the flaw that they are easy to steal. An attacker who has correctly observed a login session (by peeping, wiretapping and/or by launching a "man-in-the-middle" attack, etc.) can easily ...
Byers, John; Cheng, Mei Chin; Considine, Jeffrey; Itkis, Gene; Yeung, Alex(Boston University Computer Science Department, 2002-01-21)
Content providers often consider the costs of security to be greater than the losses they might incur without it; many view "casual piracy" as their main concern. Our goal is to provide a low cost defense against such ...
