Arbitrated Quantum Signature Scheme with Message Bits Intertwined
Na Chen, Dongxiao Quan, Chang Xing Pei, Hong Yang · Applied Mechanics and Materials · 2013
To solve a common problem existing in most of the present arbitrated quantum signature (AQS) protocols, a new AQS scheme is proposed, in which the security is based on both quantum cryptographic techniques and some ideas in classical cryptography. With message bits intertwined in the proposed scheme, an eavesdropper cannot modify the transmitted message for his own benefit. This scheme provides higher security.