HarmonyOS 鸿蒙Next DES加密解密

可以使用三方库@ohos/crypto-js，目前crypto-js已支持的算法有：MD5、SHA-1、SHA-256、HMAC、HMAC-MD5、HMAC-SHA1、HMAC-SHA256、PBKDF2、AES、RC4、DES等。

参考代码如下：

import { CryptoJS } from '[@ohos](/user/ohos)/crypto-js'
@Entry
@Component
struct DESTest {
  @State message: string = 'Hello World';
  aboutToAppear(): void {
    let data = '测试123456';
    let key = 'zzidcbigdata';
    let en = this.encrypt(data, key);
    console.log('加密：====' + en);
    let de = this.decrypt(en, key);
    console.log('解密：====' + de);
  }
  encrypt(data:string, key:string){
    let new_key = CryptoJS.enc.Utf8.parse(key);
    let uintArray = new Uint8Array([1,2,3,4,5,6,7,8])
    let iv:CryptoJS.lib.WordArray = CryptoJS.lib.WordArray.create(uintArray)
    let encryptd = CryptoJS.DES.encrypt(data, new_key, {
      mode: CryptoJS.mode.CBC,
      padding: CryptoJS.pad.Pkcs7,
      iv:iv
    })
    return encryptd.toString();
  }
  decrypt(data:string, key:string){
    let new_key = CryptoJS.enc.Utf8.parse(key);
    let uintArray = new Uint8Array([1,2,3,4,5,6,7,8])
    let iv:CryptoJS.lib.WordArray = CryptoJS.lib.WordArray.create(uintArray)
    let bytes = CryptoJS.DES.decrypt(data, new_key, {
      mode: CryptoJS.mode.CBC,
      padding: CryptoJS.pad.Pkcs7,
      iv:iv
    })
    let result = bytes.toString(CryptoJS.enc.Utf8);
    return result.toString();
  }
  build() {
    RelativeContainer() {
      Text(this.message)
        .id('DESDemoHelloWorld')
        .fontSize(50)
        .fontWeight(FontWeight.Bold)
        .alignRules({
          center: { anchor: '__container__', align: VerticalAlign.Center },
          middle: { anchor: '__container__', align: HorizontalAlign.Center }
        })
    }
    .height('100%')
    .width('100%')
  }
}