March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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其他的区块链 ｜ 237
Laurie
）提出了一个分布式可验证账本的框架，该框架列出了区块链中理想的
特征，而这些特征并不是开放的无权限类型。
我们在这一章中称其为“另类区块链”，因为不同的实现之间存在着大量的
差异，但是，在所有这些系统中，它们都会重点要考虑以下方面：
准入控制
在分布式账本系统中，我们必须定义好被允许的行为以及行为规范，准入
控制在计算机系统中很常见，它是系统安全的一个关键因素。
共识
共识是指就链或分布式账本上发布的信息的有效性达成一致，这可以通过
工作量证明、多数原则或者联盟等方式实现，比特币和以太坊使用最长链
原则来解决分叉。
验证
验证用于确保网络上的行为是正确的，并且符合预期。准入控制、共识和
分布式账本审查，这些方法都是验证的组成部分。
强制力
为了保持秩序，需要某种形式的强制力。像比特币这样的区块链，在区块
中检查每个网络中的节点都认可的“最长链”规则。在每次分叉时，新的
“最长链”必须包含所有这些检查点。
9.4
基于以太坊的私有实现
公有区块链和加密货币网络对企业来说并不是很好的实现方式，因为许多组
织出于竞争原因、合规性或其他因素，需要保持对信息的掌控。如果区块链
可以进行私有化，那么将会有更多的用途，目前有一个方案被一些企业所推崇，
那就是复制以太坊，做一个包含他们所需要的私有功能的定制化实现。
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.