— Trust management, broadly intended as the ability to maintain belief relationship among entities, is recognized as a fundamental security challenge for autonomous and selforgan...
Abstract. We describe a weakness in the High Bandwidth Digital Content Protection (HDCP) scheme which may lead to practical attacks. HDCP is a proposed identity-based cryptosystem ...
Scott Crosby, Ian Goldberg, Robert Johnson, Dawn X...
Abstract. Based on the specific characteristics of electronic commerce (ECommerce) requirements for an adequate system support, this contribution gives an overview of the respectiv...
Abstract. An oblivious signature with n keys (or messages) is a signature that the recipient can choose one of n keys (or messages) to get signed while the signer cannot find out o...
We study the multicast stream authentication problem when the communication channel is under control of an opponent who can drop, reorder and inject data packets. In this work, we...