Quantum Blockchain Based on Dimensional Lifting Generalized Gram-Schmidt Procedure
arXiv:2110.02763 · doi:10.1109/ACCESS.2022.3208123
Abstract
The advancement of quantum computers undermines the security of classical blockchain, necessitating either a post-quantum upgrade of the existing architecture or creation of an inherently quantum blockchain. Here we propose a practically realizable model of a fully quantum blockchain based on a generalized Gram-Schmidt procedure utilizing dimensional lifting. In this model, information of transactions stored in a multi-qubit state are subsequently encoded using the generalized Gram-Schmidt process. The chain is generated as a result of the reliance of orthogonalized state on the sequence of states preceding it. Various forking scenarios and their countermeasures are considered for the proposed model. It is shown to be secure even against quantum computing attacks using the no-cloning theorem and non-democratic nature of Generalized Gram-Schmidt orthogonalization. Finally, we outline a framework for a quantum token built on the same architecture as our blockchain.
arXiv comment11 pages, revised version
References in corpus (11)
- Polynomial-Time Algorithms for Prime Factorization and Discrete Logarithms on a Quantum Computer
- Quantum cryptography: Public key distribution and coin tossing
- The Impact of Quantum Computing on Present Cryptography
- Quantum-secured blockchain
- Quantum Blockchain using entanglement in time
- Quantum Bitcoin: An Anonymous and Distributed Currency Secured by the No-Cloning Theorem of Quantum Mechanics
- qBitcoin: A Peer-to-Peer Quantum Cash System
- Quantum Gram-Schmidt Processes and Their Application to Efficient State Read-out for Quantum Algorithms
- Quantum-enhanced Logic-based Blockchain I: Quantum Honest-success Byzantine Agreement and Qulogicoin
- Dimensional lifting through generalized Gram-Schmidt process
- Simple Proof of Security of the multiparty Prepare and Measure QKD