A secure two-party bargaining protocol based on additive homomorphic public key cryptosystem
基于加同态公钥密码体制的两方安全议价协议

Secure multi-party computation with its applications is an important direction in current cryptography research field. The research focuses on how to accomplish the secure cooperative computation among multi-party without the participation of the third party. The two-party bargaining protocol, based on homomorphic public key cryptosystem, was an example of secure multi-party computation's applications. One participant can make a bargain with the other by implementing the protocol. During the implementation of protocol, the privacy of input and the correctness of output could be preserved. The protocol can be implemented without the participation of the third party and its security was based on additive homomorphic public key cryptosystem.