Strong Privacy-preserving Two-party Scalar Product Quantum Protocol

摘要

Under the assumption that the parties do not change their private inputs during the whole protocol execution, we present a probabilistic quantum protocol for secure two-party scalar product without the help of any third party, which can ensure the security of the strong privacy of two parties. Especially, the communication complexity of this protocol achieves O(1), and thus it is more suitable for applications with big data.