Information-Theoretic Conditions for Two-Party Secure Function Evaluation

The standard security definition of unconditional secure function evaluation, which is based on the ideal/real model paradigm, has the disadvantage of being overly complicated to work with in practice. On the other hand, simpler ad-hoc definitions tailored to special scenarios have often been flawed. Motivated by this unsatisfactory situation, we give an information-theoretic security definition of secure function evaluation which is very simple yet provably equivalent to the standard, simulation-based definitions.

• Type: Conference
• Year: 2006
• Where: EUROCRYPT
• Authors: Claude Crépeau, George Savvides, Christian Schaffner, Jürg Wullschleger
• Keywords: Cryptology, EUROCRYPT 2006, Secure Function Evaluation, Security Definition, Unconditional Secure Function