2011 | OriginalPaper | Buchkapitel
Secure Composition of Cryptographic Protocols
Aktivieren Sie unsere intelligente Suche, um passende Fachinhalte oder Patente zu finden.
Wählen Sie Textabschnitte aus um mit Künstlicher Intelligenz passenden Patente zu finden. powered by
Markieren Sie Textabschnitte, um KI-gestützt weitere passende Inhalte zu finden. powered by
General positive results for secure computation were obtained more than two decades ago. These results were for the setting where each protocol execution is done in isolation. With the proliferation of the network setting (and especially the internet), an ambitious effort to generalize these results and obtain concurrently secure protocols was started. However it was soon shown that designing secure protocols in the concurrent setting is unfortunately impossible in general. In this talk, we will first describe the so called chosen protocol attack. This is an explicit attack which establishes general impossibility of designing secure protocols in the concurrent setting. The negative results hold for the so called plain model where there is no trusted party, no honest majority, etc.