A Four-State Entanglement Based Quantum Single Sign-On Protocol

摘要

Single Sign-On (SSO) is an important cryptography mechanism in distributed systems. Quantum cryptography has gained great successes and makes great influence on traditional cryptography. In this paper, we combines the SSO mechanism and quantum cryptography together. A SSO protocol based on four-state entanglement is designed. Through security analysis, we show that this protocol has good security properties.