@666666/messagejs/dist/utils/index.js

A message sending util

import { createHash, createCipheriv } from 'crypto';
import { Buffer } from 'buffer';
/**
 * serverChan aes加密
 * @param content 要发送的信息
 * @param key 输入密码
 * @param uid 网页上获取的UID
 * @returns
 */
function ScEncode(content, key, uid) {
    const algorithm = 'aes-128-cbc';
    const _key = md5(key).substring(0, 16);
    const _iv = md5('SCT' + uid).substring(0, 16);
    const _content = Buffer.from(content).toString('base64');
    const cipher = createCipheriv(algorithm, _key, _iv);
    let crypted = cipher.update(_content, 'utf8', 'binary');
    crypted += cipher.final('binary');
    crypted = Buffer.from(crypted, 'binary').toString('base64');
    return crypted;
}
/**
 * MD5编码
 * @param str 要进行md5的字符串
 * @returns
 */
function md5(str) {
    const hash = createHash('md5');
    return hash.update(str).digest('hex');
}
export { ScEncode, md5 };