支付宝里的密码安全登录是如何实现的？有人了解吗？

[welland]

支付宝里的密码安全登录是如何实现的？
从页面中看它的代码是这样的：
<table width="200" border=0 cellPadding=0 cellSpacing=0>
<tr>
<td class="form-left-top" nowrap>Email地址：</td>
<td class="form-right-top"><input style="font-size:14px; height:25px; width:150px;" type="text" name="_fmu.l._0.e" value="" onKeyUp=getfocus("Password_Edit")></td>
</tr>
<tr>
<td class="form-right" nowrap>登录密码：</td>
<td class="form-right">
<OBJECT id="Password_Edit" data="data:application/x-oleobject;base64,VUKKSDYys0SPJ/oa7KqIRBAHAADYEwAA2BMAAA=="
classid="clsid:488A4255-3236-44B3-8F27-FA1AECAA8844" BORDER="0"
WIDTH="150" HEIGHT="25"
CODEBASE="https://img.alipay.com/download/aliedit.cab#Version=1,0,0,5">

<PARAM NAME="PasswordMode" VALUE="-1">
<PARAM NAME="MaxLength" VALUE="16">
</OBJECT>
</td>
</tr>

<script language="javascript">
try{
login.Password_Edit.EchoTest();

} catch(er) {

document.write("<tr><td></td><td class=lh15><img src=\"https://img.alipay.com/pimg/icon_arrow.gif\" align=absmiddle> <a href=\"https://img.alipay.com/download/aliedit.exe\"><font style=\"font-size:12px\" color=ff6600>无法输入登录密码？<br>");
document.write("请");
document.write("点此安装安全控件后刷新");
document.write("</a></font></td></tr> ");

}
</script>

<tr>
<td class="form-right"><span style="align:right">校 验 码：</td>
<td class="form-right">
<input style="font-size:14px; height:25px; width:80px;" type="text" name="_fmu.l._0.c" value="" size=17 maxLength=4> <img src="https://www.alipay.com/user/checkcode" alt="" border="1" align="absmiddle"><br><span class="note-help">请将右边的文字输入框中</span></td>
</tr>

<tr>
<td align=right valign=top colspan=2 class="form-button-ok">
<input name="submit2" type=image src="https://img.alipay.com/pimg/button_login.gif" alt="登 录" align="absmiddle" >  <span class="txt12"><a href="https://www.alipay.com/user/forgot_pwd.htm">忘了登录密码?</a></span>
</tr>

<input type="hidden" name="action" value="login_action" >
<input type="hidden" name="goto" value="" >
<input type="hidden" name="event_submit_do_login" value="anything">
</FORM>
</table>

[luckweb]

<OBJECT id="Password_Edit" data="data:application/x-oleobject;base64,VUKKSDYys0SPJ/oa7KqIRBAHAADYEwAA2BMAAA=="
classid="clsid:488A4255-3236-44B3-8F27-FA1AECAA8844" BORDER="0"
WIDTH="150" HEIGHT="25"
CODEBASE="https://img.alipay.com/download/aliedit.cab#Version=1,0,0,5">

<PARAM NAME="PasswordMode" VALUE="-1">
<PARAM NAME="MaxLength" VALUE="16">
</OBJECT>

上面不是写得很清楚吗？是用控件写的

[welland]

嘿，俺知道这个，俺是想问有没有写这个控件的相关资料？

[welland]

再up一下，希望有高手介绍这方面的知识．

[lireng]

这个是要写ACTIVEX控件才能完成的.我已成功了,但是出于商业目的,不便公开源码.主要是控件里涉及到了密码的算法.