EFPB: Efficient Fair Payment Based on Blockchain for Outsourcing Services in Cloud Computing

EFPB: Efficient Fair Payment Based on Blockchain for Outsourcing Services in Cloud Computing

Pathipati Chandra Sekhar1

Assistant Professor, Guru Nanak Institute of Technology, Department of CSE, Hyderabad

K.Suresh Babu2
Assistant Professor, PACE Institute of Technology and Sciences, Department of CSE, Ongole

ABSTRACT
Despite the maturity of cloud services (e.g., outsourcing of computational tasks), a number of operational challenges remain. For example, how do we ensure trust between outsourcers and workers in a zero-trust environment? While a number of blockchain-based solutions that eliminate the reliance on trusted third parties have been presented, many of these existing approaches do not achieve robust fairness and/or support compatibility with other systems. In this paper, we propose an efficient fair payment system using blockchain (EFPB), designed to achieve robust fairness and compatibility. Specifically, EFPB comprises a number of cryptographic building blocks, mainly: one-way accumulator (RSA-based construction), stealth address and symmetric encryption. We then evaluate the performance of EFPB to demonstrate that it is more efficient and low-cost than other competing schemes, as well as presenting a comparative summary of functionalities.