请问一下惠惠购物助手的这个参数用的是什么加密算法

加密参数：

<code>b8a8583cfb1dc9b8d7fb9bcce9b8d7bab9c92b0ab8fa8888a9e9a8d78ccbe9a8d76cbb686c7c2d9b5c9b68fcfcfce9a8d7e9a8d799b8d78ccccc0c</code>

完整请求地址：

<code>http://zhushou.huihui.cn/productSense?browser=chrome&version=4.2.9.3&vendor=youdaonew&av=3.0&extensionid=c2b9bf9b-5d9b-8c91-5d1a-9bd3b83c6443&email=&pop=&k=8efed343437765e64a14d6f2ea45616ef6dca1ff576bc511035e9508f4d65445a11531598b441652&nl=true&m=b8a8583cfb1dc9b8d7fb9bcce9b8d7bab9c92b0ab8fa8888a9e9a8d78ccbe9a8d76cbb686c7c2d9b5c9b68fcfcfce9a8d7e9a8d799b8d78ccccc0c</code>

回复内容：

加密参数：

<code>b8a8583cfb1dc9b8d7fb9bcce9b8d7bab9c92b0ab8fa8888a9e9a8d78ccbe9a8d76cbb686c7c2d9b5c9b68fcfcfce9a8d7e9a8d799b8d78ccccc0c</code>

完整请求地址：

<code>http://zhushou.huihui.cn/productSense?browser=chrome&version=4.2.9.3&vendor=youdaonew&av=3.0&extensionid=c2b9bf9b-5d9b-8c91-5d1a-9bd3b83c6443&email=&pop=&k=8efed343437765e64a14d6f2ea45616ef6dca1ff576bc511035e9508f4d65445a11531598b441652&nl=true&m=b8a8583cfb1dc9b8d7fb9bcce9b8d7bab9c92b0ab8fa8888a9e9a8d78ccbe9a8d76cbb686c7c2d9b5c9b68fcfcfce9a8d7e9a8d799b8d78ccccc0c</code>

一般这种字符加密算法都是用md5来加密的。