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什么权限,请具体点
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比如我交易的时候需要账号密码
不是很理解你的问题。我试着回答下: 公链一般都不提供权限系统,自己需要在区块链外额外提供系统,比如判断某个地址是什么角色。 联盟链或者私链的系统一般会在区块链核心之外,同时提供了其他系统模块,比如权限模块等。
不是传统的账号密码体系。区块链直接看msg.sender。 传统验证需要密码是因为账号是公开的,任何人都可以冒充。但区块链从技术上保证了账号不能冒充(公钥私钥)。
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