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offline-pay-code

v0.2.3

Published

offline pay code

Downloads

1

Readme

离线支付码生成工具

介绍

主要就是利用TOTP算法生成一个6位(默认)数字的一次性密码pin, 再由给定的32位uid异或加密得到最终的code. 此工具暴露三个接口, 分别是

  1. secretKey的生成
  2. code生成
  3. code校验

当然,如果你对secretKey的生成有自己的一套生成算法也可以,看具体需求.

安装

npm i offline-pay-code

# or
yarn add offline-pay-code

测试

npm run test

事列

const payCode = require('offline-pay-code')

const options = {
    period: 30,
    digits: 6,
    algorithm: 'sha1',
}
const key = payCode.secretKey()
const uid = 212123456 //这只是一个范例
const code = payCode.getCode(key, uid, options)

// 验证
const verifyRet = payCode.verify(key, code, options)
// success: { code: 0, data: 212123456 }
// fail: { code: -1, msg: 'verify fail' }