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助记词是分层钱包中重要的概念之一,比特币BIP39是一套助记词库,比特币BIP39的JavaScript实现,用于生成确定性密钥的助记符代码。
一.助记词生成
生成12个助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic()
console.log(mnemonic);
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic(128)
console.log(mnemonic);
生成15个助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic(160)
console.log(mnemonic);
生成18个助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic(192)
console.log(mnemonic);
生成21个助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic(224)
console.log(mnemonic);
生成24个助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic(256)
console.log(mnemonic);
生成中文助记词
var mnemonicS = bip39.generateMnemonic(128, null, bip39.wordlists.chinese_simplified);
console.log(mnemonicS);
以上根据传值的的大小限定助记词的个数
目前助记词库能够生成“简体中文”,“繁体中文”,“英文”,“法文”,“意大利文”,“日文”,“韩文”和西班牙文。
二.助记词编解码
编码助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic()
var encrytMnemonic = bip39.mnemonicToEntropy(mnemonic)
console.log(encrytMnemonic);
解码助记词
var bip39 = require('bip39')
var mnemonic = bip39.generateMnemonic()
console.log(mnemonic);
var encrytMnemonic = bip39.mnemonicToEntropy(mnemonic)
var word = bip39.entropyToMnemonic(encrytMnemonic)
console.log(word);
三.生成随机数种子
var mnemonicE = bip39.generateMnemonic()
console.log(mnemonicE);
var Seed= bip39.mnemonicToSeed(mnemonicE)
var seedHex= bip39.mnemonicToSeedHex(mnemonicE)
console.log(Seed);
console.log(seedHex);
四.验证助记词
var mnemonic = bip39.generateMnemonic()
console.log(mnemonic);
var bool = bip39.validateMnemonic(mnemonic)