IMPROVE SECURITY OF QUANTUM PROXY SIGNATURE SCHEME USING QUANTUM ONE-WAY FUNCTION AND BELL STATES
M. kumar, S. S. Dubey, P. Gupta and Y. Khandelwal
With the advancement of the quantum cryptography, it is unconditional secure to transfer data between two remote parties. The present paper proposes a new quantum proxy signature scheme using quantum one-way function (OWF) and EPR quantum entanglement. Quantum one-way function can be computed polynomial time but are hard to invert in polynomial time. It is easy to compute on every input but hard to invert. The quantum key distribution, OWF and one-time-pad encryption algorithm guarantee the unconditional security of this scheme.
Keywords: Quantum cryptography, Entanglement, one-way function, Proxy signature, Unitary transformation, Quantum key distribution.