vue安装了crypto.js，在用户登录按钮里怎么使用加密和解密？直接引入还是要得新建一个js文件？

Question

<template>
<div>
<!-- 登录框 -->

<div id="Mask" v-show="login_content"></div>
<div class='login_content' v-show="login_content">
  <form id='signin_form' class='form-horizontal'>
    <div class='control-group'>
      <strong class='control-label login-label' for='name'>username:</strong>
      <div class='controls login-controls'>
        <input class='input-xlarge login-input' id='name' name='name' size='30' placeholder="itcode" 
          type='text' autofocus v-model="username"/>
      </div>
    </div>
    <div class='control-group'>
      <strong class='control-label login-label' for='pass'>password:</strong>
      <div class='controls login-controls'>
        <input class='input-xlarge login-input' id='pass' name='pass' size='30' type='password' 
          v-model="password"/>
      </div>
    </div>
    <div class='form-actions login-submit'>
      <input class="span-primary login-cancel" type='button' value='cancel' @click="login_content = !login_content"/>
      <input type='button' class='span-primary login-submit-btn' value='login' @click="submitLogin('enter')"/>
    </div>
  </form>
</div>

</div>
</template>
<script>
import Axios from "axios"
import CryptoJS from 'crypto-js'
export default {

data() {
  return {
    username: "",
    password: "",
    login_content: false, //登录弹框  
  }
},
created(){
  //登录回车键
  var vi = this;
  document.onkeydown = function(e){
    if(window.event == undefined){
      var key = e.keyCode;
    }else{
      var key = window.event.keyCode;
    }
    if(key == 13){
      vi.submitLogin('enter');
    }
  }
},

methods: {
  // 登录框
  Login(){
    this.login_content = true;
  },
  // 登录方法
  submitLogin(){    
    let name = this.username
    let pass = this.password
   
     if(name == '' || name == null){
       alert("请输入正确的用户名");
     }else if(pass == '' || pass == null){
       alert("请输入正确的密码");
     }
    let api = '/arTham/arTham/login';
    let data = {"name": this.username, "pass": this.password,};
       if(res.data.success = true){
         console.log("登陆成功！")
         this.login_content = false;
         sessionStorage.setItem('username',this.username); //将当前的登录用户名存入session中            
        // this.$router.push({path:"cmr"}); // 跳转页面
       }else{
         alert("用户名或密码错误");
         this.username = '';
         this.password = '';
       }
    })
    .catch((e)=>{
      console.log(e);
    })
  }
}

}
</script>