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67 lines
1.9 KiB
67 lines
1.9 KiB
```js
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import SHA1 from 'crypto-js/sha1'
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import { sm4 } from 'miniprogram-sm-crypto'
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// 接口签名
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export const genSign = params => {
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// 获取预先设置为环境变量的 APPKEY
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let key = '{your secreat-key}'
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let keys = []
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for (let key in params) {
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keys.push(key)
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}
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// 参数名 ASCII 码从小到大排序（字典序）
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keys.sort()
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// 转成键值对
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let paramPair = []
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for (let i = 0, len = keys.length; i < len; i++) {
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let k = keys[i]
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let itm = params[k]
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if (typeof itm == 'object') {
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itm = JSON.stringify(itm)
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}
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paramPair.push(k + '=' + itm) // base64 编码
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}
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// 最后加上 key
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paramPair.push('key=' + key)
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// 拼接
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let stringSignTemp = paramPair.join('&')
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console.log('stringSignTemp:' + stringSignTemp)
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let sign = SHA1(stringSignTemp).toString().toUpperCase()
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return sign
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}
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// 数据解密
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export const decodeData = data => {
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//字符串转byte数组
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const stringToByte = function (str) {
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var bytes = new Array()
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var len, c
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len = str.length
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for (var i = 0; i < len; i++) {
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c = str.charCodeAt(i)
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if (c >= 0x010000 && c <= 0x10ffff) {
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bytes.push(((c >> 18) & 0x07) | 0xf0)
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bytes.push(((c >> 12) & 0x3f) | 0x80)
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bytes.push(((c >> 6) & 0x3f) | 0x80)
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bytes.push((c & 0x3f) | 0x80)
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} else if (c >= 0x000800 && c <= 0x00ffff) {
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bytes.push(((c >> 12) & 0x0f) | 0xe0)
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bytes.push(((c >> 6) & 0x3f) | 0x80)
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bytes.push((c & 0x3f) | 0x80)
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} else if (c >= 0x000080 && c <= 0x0007ff) {
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bytes.push(((c >> 6) & 0x1f) | 0xc0)
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bytes.push((c & 0x3f) | 0x80)
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} else {
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bytes.push(c & 0xff)
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}
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}
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return bytes
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}
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const key = stringToByte('{your secreat-key1}')
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return sm4.decrypt(data, key)
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}
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``` |