区块链或记录链本质上是非对称身份链
首发时间:2018-03-14
摘要:本文介绍了比特币的定义、区块链的定义及作用,指出"去中心化"并不是区块链的特征,而只是比特币的特征,并指出数字签名算法和哈希函数算法是区块链的核心技术所在,也是区块链的创新发力点所在。文章讨论了对称身份与非对称身份,阐述了区块链本质上是一条非对称身份链。设计和构建了高度中心化的记录链,它被用来实现数字票据的可信传递,即保证转让过程中票据的真实性、不可篡改性和不可否认性。文章还比较了区块链和记录链的相同点与不同点,尤其,列举了记录链是量子安全的。
关键词: 比特币 区块链 数字签名算法 哈希函数 非对称身份 数字票据 记录链 可信传递 量子安全
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a blockchain or recordchain is essentially an asymmetric identity chain
abstract:this paper presents first the definition of a bitcoin, and the definition and effect of a blockchain. the paper points out that decentralization is not the characteristic of a blockchain, but the characteristic of a bitcoin, and that a digital signing algorithm and a hash function are not only the kernel techniques of a blockchain, but also the innovative knob of a blockchain. the paper discusses symmetric identities and asymmetric identities, and expounds that a blockchain is essentially an asymmetric identity chain. the paper designs and constructs a greatly centralized recordchain which is used to implement the trusted transference of a digital draft, namely to assure the authenticity, integrality, and undeniableness of a transferred digital draft. lastly, the paper draw a comparison between a blockchain and a recordchain which includes samenesses and differences, and especially itemizes that a recordchain is quantum-safe.
keywords: bitcoin blockchain digital signing algorithm hash function asymmetric identity digital draft recordchain, trusted transference quantum security
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