Study on the Technology of the Secure Computation in the Different Adversarial Models

This paper analyzes secure computation protocol’effciency in different (semi-honest and malicious and covert adversary) models. The semi-honest model is suitable for these high efficiency protocols that security requirements are not high. Secure and efficient protocols are designed in malicious model which one-sided simulatability, smartcards, cut-and-choose and black-box reduction technology are adopted, for highly sensitive data in pratice. To achieve further improvement, The security definitions are relaxed in different requirements, such as privacy, correctness and so on, to creat the special efficient protocols with different technology.