Quantum Signature Scheme for Participant Attack
Kitak Won, Jino Heo, Chun Seok Yoon, Ji-Woong Choi, Hyung-Jin Yang · Journal of the Korean Physical Society · 2019
We present a quantum signature scheme for a participant attack using only Pauli operators. The arbitrator verifies the signature and serves to prevent the denial of participants as well as the existing arbitrated quantum signature. Conversely, Bob’s existential forgery and Alice’s disavowal, which are reported to be a shortcoming of Pauli operators, are not allowed. This simplifies the structure and increases the efficiency of communication.