路由器登录页面------提交数据的保护

今天无意中发现路由器的登录页面在提交过程中用JS对提交的数据做过加密，但加密算法好像是用哈希算法的原理，但不知具体的原理里是什么，望有路过的人们指点指点。

以下是页面代码：

<html> <head> <title>Vigor Login Page</title> <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> <mce:style></mce:style><style mce_bogus="1"> td.userpwd { color: #000000; font-family : Verdana, Arial, Helvetica, sans-serif; font-size : 14px; font-weight: bold; } td.copyright { color: #FFFFFF; font-family: Verdana, Arial, Helvetica, sans-serif; font-size: 10px; font-weight: normal; } input.login { color: #FFFFFF; width: 77px; height: 25px; padding: 0 .38em .22em .38em; background: #004488 url(images/login1.jpg) scroll 0; border: 0px #004488 solid; font-family: Verdana, Arial, Helvetica, sans-serif; font-style: normal; font-weight: bold; font-size: 14px; cursor: pointer; } input.userpwd { width: 160px; font-family: Verdana, Arial, Helvetica, sans-serif; }</style> </head> <body> <form name=frm1> <table width=100% height=90% border=0> <tr> <td> <table background="images/login.gif" align=center width=442px height=245px border=0> <tr> <td colspan=2> <table width=70% align=center cellspacing="0" cellpadding=2 border=0> <tr> <td width=40% class=userpwd>Username</td> <td width=60%><input class=userpwd type=text name=sUserName maxlength=24></td> </tr> <tr> <td class=userpwd>Password</td> <td><input class=userpwd type=password name=sSysPass maxlength=24></td> </tr> <tr> <td colspan=2 align=right><br><input type=button name=btnOk value=Login class=login></td> </tr> </table> </td> </tr> <tr> <td width=10 height=40></td> <td class=copyright>Copyright©, DrayTek Corp. All Rights Reserved.</td> </tr> </table> </td> </tr> </table> </td> </tr> </table> </form> <form name=frmSub> <mce:script type="text/javascript"></mce:script> </form> </body> </html> <mce:script type="text/javascript"></mce:script>

路由器登录页面------提交数据的保护

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