March 2022
Intermediate to advanced
293 pages
5h 31m
Chinese
Content preview from 精通区块链
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238 ｜ 第 9 章
9.4.1 Nightfall
Nightfall
是由会计师事务所安永（
EY
）重载的以太坊的一个实现，它为网络
的智能合约技术增加了专有能力，使
ERC-20
和
ERC-721
代币能够在链上隐
私交易，
Nightfall
通过
zk-SNARK
实现该功能，并使用
ZoKrates
通过计算为
Nightfall
提供可读证明，
ZoKrates
有一个
Java
的封装实现。
9.4.2 Quorum
Quorum
是一个由摩根大通基于以太坊的私有化实现，它支持隐私交易和隐
私合约，并且兼容以太坊工程师熟悉的开发工具。
Quorum
使用
Zether
，而
Zether
是一个加密价值追踪系统，它“依附”在
ERC-20
合约上，创建私有的
Zether
账户，
Zether
使用
ElGamal
对一个公钥下的所有账户资产进行加密。
9.5
企业实现
还有一些团体在研究更自主的专有区块链，许多这类团体都是从以太坊开始，
然后决定为特定的用例构建自己的解决方案。
9.5.1 Hyperledger
Hyperledger
是一个由
Linux
基金会管理的开源区块链开发平台，最著名
的
Hyperledger
项目是
Fabric
，
Fabric
是一种使用
Go
语言的分布式账本技
术，还有一些其他实现，包括
C++
开发的
Iroha
和多语言实现的
Sawtooth
。
Fabric
支持智能合约、交易和共识的，类似于以太坊，许多企业链项目，包
括
IBM
、
Oracle
的企业链都是基于此。
9.5.2 Corda
Corda
由
R3
财团开发，专注于隐私体系，该平台基于
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