某软件用IRIS抓到的 HTTP 80端口发送的封包如下：
GET /x.php?action=cc&ecpca=Y/RPzMt3x4mJtdcdYs8STIDnINo5iayt/wZ7Zqrof5sMjO85VeGIenJexLe2QDdO0TqhlohJvNziaVOmNRf60y34c47hQUJHkXW9mp/cQOGeDcqFU2PaagDijQQ/N3vcZbsP4PNJZV+yraoy+T36tvOs3ke1awvlNILKNe2DqsmXnts8rjxRQA HTTP/1.0
Host: xxx.xx.com
Connection: Close

HTTP/1.1 200 OK
Date: Tue, 01 Apr 2008 09:39:18 GMT
Server: Apache
X-Powered-By: PHP/5.1.6
Connection: close
Content-Type: text/html

vy_data_result=3v3GznCisn/mXq+ts1YCVfZRu50M9HDCeksICGK1D18bibWlIf4wFDGlcN1gYKy8dwSjW8krRgSSLdsEzl3itu0xfa7WMPB2AUN589O/YcgzB26K1/ZJG8PR1lbFnUVgRFk4gDMTcpeUsNtwwr3OJ/TEzsE8QDcL3pKF64wtp4PBhGPwKmc1s3ZuSM7d18s3C9pIubsHJZPsqd6BKrthehpI1J3sQSX7Wx9cthEjhbCxK2VbUyoNRk+U9mOW2MfPp6OXo2qsClY==vy_data_end

其实有部分数据已经加密，请教这种加密的类型是什么，对应方法该如何。谢谢

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