kepler-encryption-agreement/src/Util.ts

开普勒系列产品的加密插件

/*
 * @Author: zhangyida
 * @Date: 2022-05-18 15:56:25
 * @LastEditors: zhangyida
 * @LastEditTime: 2022-05-18 16:13:59
 * @FilePath: /workspace/kepler-encryption-agreement/src/Util.ts
 * @Description: 工具类
 */


declare const require:any;
import Base64 from 'crypto-js/enc-base64';
import Utf8 from 'crypto-js/enc-utf8';
import MD5 from 'crypto-js/md5';

const crypto = require('crypto');
const { JSEncrypt } = require('jsencrypt');

export  class Util {
	// 加密
  public static encryption = (data:any,key:any) => {
    let iv = "";
    let clearEncoding:any = 'utf8';
    let cipherEncoding:any = 'base64';
    let cipherChunks = [];
    let cipher = crypto.createCipheriv('aes-128-ecb', key, iv);
    cipher.setAutoPadding(true);
    cipherChunks.push(cipher.update(data, clearEncoding, cipherEncoding) as never);
    cipherChunks.push(cipher.final(cipherEncoding) as never);
    return cipherChunks.join('');
  }

  // 解密
  public static decryption = (data:any, key:any) => {
    let iv = "";
    let clearEncoding:any = 'utf8';
    let cipherEncoding:any = 'base64';
    let cipherChunks = [];
    let decipher = crypto.createDecipheriv('aes-128-ecb', key, iv);
    decipher.setAutoPadding(true);

    cipherChunks.push(decipher.update(data, cipherEncoding, clearEncoding) as never);
    cipherChunks.push(decipher.final(clearEncoding) as never);

    return cipherChunks.join('');
	}
	
	/**
	 * 转成base64的方法
	 * @param {string} data 需要转成base64的值
	*/
	static Base64Encode = (data:any) => {
		return Base64.stringify(Utf8.parse(data));
	}

	/**
	 * 转成MD5加密
	 * @param {string} data 需要转成MD5的值
	*/
	static MD5Encode = (data:any,key?:any) => {
		return MD5(data,key);
	}

	/**
	 * RSA加密
	 * @param {string} data 需要转成RSA加密的值
	*/
	static RSAEncode = (data:any, publicKey:string) => {
		let encrypt = new JSEncrypt();
		encrypt.setPublicKey(publicKey);
		return encrypt.encrypt(data);
	}

	/**
	 * 生成一个16位的随机数
	*/
	static createRandom16 = () => {
		const n:any = '000000000000000';
		const m:any = (10000000000000000 * Math.random()).toString();
		const r:any = (`${n}${m}`).match(/(\d{16})(\.|$)/);
		let random:any = r[1];
		return random;
	}

	/**
	 * 获取X-Auth-Token 加密协议
	 * 
	*/
	public static getAuthToken = (random:any, channel:string, publicKey:string, key:string) => {
		let timestamp = Date.parse(new Date() as any)/1000;
		let payload =	{
			channel,
			key: Util.RSAEncode(random, publicKey),
			timestamp
		}
		const newPayload = `${JSON.stringify(payload)}${key}`;
		const payloadToToken = `${JSON.stringify(payload)}`;
		let sign = Util.MD5Encode(newPayload);
		let AuthToken = `${Util.Base64Encode(payloadToToken)}.${sign}`;
		return AuthToken;
	}
}