Zero-history blockchains and zero-knowledge contracts for the post quantum era DOI Creative Commons
Jayamine Alupotha

Опубликована: Янв. 1, 2023

We are living in the pre-quantum era, still wondering whether quantum computing is possible, akin to humankind 50 years ago who had no idea those room-filling computers could be shrunk into palm-sized mobile phones. In interim, we must prepare our information systems, including decentralized blockchains, withstand adversaries. Alas, post-quantum cryptography comes with vastly more onerous space and time requirements, detriment of scalability. This work proposes new theories protocols achieve scalable blockchains that support privacy-preserving smart contracts, not only classical security but also security.

Язык: Английский

From premise to practice of social consensus: How to agree on common knowledge in blockchain-enabled supply chains DOI
Warwick Powell, Shoufeng Cao, Thomas Miller

и другие.

Computer Networks, Год журнала: 2021, Номер 200, С. 108536 - 108536

Опубликована: Окт. 12, 2021

Язык: Английский

Процитировано

20
Aggregable Confidential Transactions for Efficient Quantum-Safe Cryptocurrencies DOI Creative Commons
Jayamine Alupotha,

Xavier Boyen,

Matthew McKague

и другие.

IEEE Access, Год журнала: 2022, Номер 10, С. 17722 - 17747

Опубликована: Янв. 1, 2022

Confidential Transactions (CT) hide coin amounts even from verifiers without the help of trusted third parties. Aggregable CTs are a scalable category with “spent record trimming”. For example, if Alice sends coins to Bob, who had sent similar Charles, aggregated transaction shows only that Charles by deleting Bob’s records. Since number spent records grows linearly transactions, faster than accounts, cash systems based on aggregable highly scalable. However, existing quantum-safe CT protocols have large unspent records, and efficient vulnerable quantum attacks. We introduce two protocols, new homomorphic zero-knowledge proofs, either plain or Module Short Integer Solution (SIS MSIS) problems, both believed be secure against adversaries. further implement MSIS-based protocol as C library. Our experiments 10 4 transactions show aggregation reduces system’s size 40%–54% when output/input rate is in range 1/1–2/1. system 1.73 GB can reduced 0.98 1.5, which has been historical real-world average rate.

Язык: Английский

Процитировано

7
Zero-History Confidential Chains with Zero-Knowledge Contracts: A New Normal for Decentralized Ledgers? DOI
Jayamine Alupotha,

Xavier Boyen,

Matthew McKague

и другие.

Lecture notes in computer science, Год журнала: 2022, Номер unknown, С. 67 - 88

Опубликована: Янв. 1, 2022

Язык: Английский

Процитировано

1
Zero-history blockchains and zero-knowledge contracts for the post quantum era DOI Creative Commons
Jayamine Alupotha

Опубликована: Янв. 1, 2023

We are living in the pre-quantum era, still wondering whether quantum computing is possible, akin to humankind 50 years ago who had no idea those room-filling computers could be shrunk into palm-sized mobile phones. In interim, we must prepare our information systems, including decentralized blockchains, withstand adversaries. Alas, post-quantum cryptography comes with vastly more onerous space and time requirements, detriment of scalability. This work proposes new theories protocols achieve scalable blockchains that support privacy-preserving smart contracts, not only classical security but also security.

Язык: Английский

Процитировано

0