Quantum blind signature protocol based on single qubit rotation

Abstract

We propose a bit-oriented quantum blind signature protocol utilizing the single-qubit rotation. Within this scheme, message blinding and signing are achieved through qubit rotation, while message recovery and verification are accomplished via inverse rotation. The protocol primarily relies on quantum rotation operations, which are highly feasible with current technological capabilities. Moreover, by exploiting the multi-dimensional properties of qubits, the protocol allows each qubit to encode two classical bits, thereby enhancing coding efficiency. Consequently, this method reduces the complexity of the signature process, minimizes reliance on extensive quantum resources, and lowers implementation costs, positioning it as a promising candidate for practical applications.