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web3js里有直接从私钥获取公钥的接口吗 是这个web3.shh.getPublicKey吗，我调用直接报...
source link: https://learnblockchain.cn/question/1981
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web3js里有直接从私钥获取公钥的接口吗 是这个web3.shh.getPublicKey吗，我调用直接报错没有这类方法
我调用直接调用web3.shh.xxx会报错没有这类方法
web3.shh.addPrivateKey('0x8bda3abeb454847b515fa9b404cede50b1cc63cfdeddd4999d074284b4c21e15').then(console.log);
Error: the method shh_addPrivateKey does not exist/is not available
at web3.js:3143:20
at web3.js:6347:15
at web3.js:5081:36
at :1:1
最佳答案 1天前
可以用： https://github.com/ethereumjs/ethereumjs-util
> const util = require('ethereumjs-util')
> util.privateToPublic(privateKey)
或者 用 secp256k1:
> const secp256k1 = require('secp256k1')
> secp256k1.publicKeyCreate(privateKey, false).slice(1)
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擅长：智能合约,以太坊 | 采纳率 40% | 回答于 1天前
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