Blind Digital Signature schemes with four particle entanglement states

Abstract

Quantum Digital Signature (QDS) schemes provides authenticity of information that is guaranteed by quantum mechanics. This paper compares the blind signature schemes with two and three-bit quantum state bits and provides a implementation for the four quantum states. We proposed a technique where four partial entangled states are used to implement the blind signature scheme. The proposed technique improves the reliability factor of the scheme in terms of its encryption and decryption using quantum cryptosystem for interchanging the data in a protected mode. In the communication system, the encryption of messages was done with the help of the sender's private key. The third party verifies its authenticity along with blindness of the signature. Furthermore, future research trends were presented with a security analysis.