In an increasingly connected world, energy efficiency has become a significant problem.
Online electronic transactions are booming based on shopping convenience, fast payments …

We envision a scenario where contract signers put their portable document format (PDF)
contract into a blockchain application that outputs a signed contract, while blockchain nodes …

Electronic contract signing requires the design of protocols that guarantee that the exchange
is fair. In the past 5 years, we have observed that trusted third parties (TTPs) can be replaced …

区块链在商业交易领域的快速发展及应用, 尤其是交易合同的签署对公平的需求,
导致传统的单向信任模式的区块链需要更换为双向信任模式. 基于已有的多种公平合同签署协议 …

As the COVID-19 continues to spread globally, more and more companies are transforming
into remote online offices, leading to the expansion of electronic signatures. However, the …

摘要一个公平的合同签署协议需要使签名者在协议结束的时候能够同时获取有效的合同,
或者无法获取任何有用的信息. 大部分的合同签署协议需要一个可信赖的第三方来确保公平性 …

We study how to make any deterministic encryption scheme probabilistic and secure against
adaptively chosen ciphertext attacks. A new transpositional padding encryption scheme is …

The bulk commodity is a major strategic resource of the country, and related trade markets
are booming. However, due to channel isolation and information barriers, the trade platforms …

Abstract In Asiacrypt'14, Boneh et al. built a new statistically hiding and computationally
binding commitment scheme based on the collision-resistant property of the Zagier …

Multi-party contract signing (MPCS) is a way for signers to agree on a predetermined
contract by exchanging their signature. This matter has become crucial with the growing …