Authors: Mohammed Barhoush, Louis Salvail
Published on: January 29, 2024
Impact Score: 8.22
Arxiv code: Arxiv:2401.16116
Summary
- What is new: The concept of ‘quantum cheques’ (QCs) as an achievable alternative to quantum money, with practical technological implications.
- Why this is important: The challenge of creating publicly-verifiable quantum money in quantum cryptography.
- What the research proposes: Introduction of quantum cheques that can be verified using a public key by a single user, utilizing novel primitives based on the learning-with-errors (LWE) assumption.
- Results: Successful construction of QCs that require quantum communication only when issued, with payments and deposits being classical.
Technical Details
Technological frameworks used: Learning-with-errors (LWE) assumption for constructing QCs.
Models used: Signatures with publicly-verifiable deletion, 2-message signature tokens.
Data used: Quantum and classical data for issuing and processing QCs.
Potential Impact
Financial institutions focused on secure transactions, quantum computing companies, cybersecurity firms.
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