在政府医疗机构工作的乐趣之一是必须处理所有围绕PHI(受保护的健康信息)的偏执。不要误解我的意思，我支持尽一切可能保护人们的个人信息(健康状况、财务状况、上网习惯等)，但有时人们会有点太神经质了。
举个例子:我们的一位州客户最近发现浏览器提供了保存密码的方便功能。我们都知道它已经存在了一段时间，完全是可选的，由最终用户决定是否使用它是一个明智的决定。然而，目前有一点骚动，我们被要求找到一种方法来禁用我们网站的功能。
问:网站有没有办法告诉浏览器不要提供记住密码的功能?我从事网络开发已经很长时间了，但我不知道我以前遇到过这种情况。
任何帮助都是感激的。
当前回答
If you do not want to trust the autocomplete flag, you can make sure that the user types in the box using the onchange event. The code below is a simple HTML form. The hidden form element password_edited starts out set to 0. When the value of password is changed, the JavaScript at the top (pw_edited function) changes the value to 1. When the button is pressed, it checks the valueenter code here before submitting the form. That way, even if the browser ignores you and autocompletes the field, the user cannot pass the login page without typing in the password field. Also, make sure to blank the password field when focus is set. Otherwise, you can add a character at the end, then go back and remove it to trick the system. I recommend adding the autocomplete="off" to password in addition, but this example shows how the backup code works.
<html>
<head>
<script>
function pw_edited() {
document.this_form.password_edited.value = 1;
}
function pw_blank() {
document.this_form.password.value = "";
}
function submitf() {
if(document.this_form.password_edited.value < 1) {
alert("Please Enter Your Password!");
}
else {
document.this_form.submit();
}
}
</script>
</head>
<body>
<form name="this_form" method="post" action="../../cgi-bin/yourscript.cgi?login">
<div style="padding-left:25px;">
<p>
<label>User:</label>
<input name="user_name" type="text" class="input" value="" size="30" maxlength="60">
</p>
<p>
<label>Password:</label>
<input name="password" type="password" class="input" size="20" value="" maxlength="50" onfocus="pw_blank();" onchange="pw_edited();">
</p>
<p>
<span id="error_msg"></span>
</p>
<p>
<input type="hidden" name="password_edited" value="0">
<input name="submitform" type="button" class="button" value="Login" onclick="return submitf();">
</p>
</div>
</form>
</body>
</html>
其他回答
我知道的一种方法是在提交表单之前使用(例如)JavaScript从密码字段中复制值。
这样做的主要问题是解决方案与JavaScript绑定在一起。
同样，如果它可以绑定到JavaScript，那么在向服务器发送请求之前，不妨在客户端对密码进行哈希处理。
另一种解决方案是使用隐藏表单使POST，其中所有输入的类型都是隐藏的。可见表单将使用“password”类型的输入。后一种表单永远不会被提交，所以浏览器根本无法拦截登录操作。
好吧，这是一个非常老的帖子，但我仍然会给出我的解决方案，这是我的团队长期以来一直在努力实现的。我们只是在表单中添加了一个新的input type="password"字段，并将其包装在div中，并使div隐藏起来。确保这个div在实际的密码输入之前。 这为我们工作，它没有提供任何保存密码选项
扑通- http://plnkr.co/edit/xmBR31NQMUgUhYHBiZSg?p=preview
HTML:
<form method="post" action="yoururl">
<div class="hidden">
<input type="password"/>
</div>
<input type="text" name="username" placeholder="username"/>
<input type="password" name="password" placeholder="password"/>
</form>
CSS:
.hidden {display:none;}
真正的问题比在HTML中添加属性要深刻得多——这是常见的安全问题，这就是为什么人们为了安全发明了硬件密钥和其他疯狂的东西。
假设autocomplete="off"在所有浏览器中都能正常工作。这对安全有帮助吗?当然不是。用户将把密码写在课本上，写在每个办公室访客都能看到的显示器上贴的贴纸上，保存在桌面上的文本文件中等等。
一般来说，web应用程序和web开发人员不以任何方式对最终用户的安全负责。最终用户只能保护自己。理想情况下，他们必须把所有的密码都记在脑子里，并使用密码重置功能(或联系管理员)以防他们忘记密码。否则，总有一个风险，密码可以看到和窃取以某种方式。
所以，要么你对硬件密钥有一些疯狂的安全策略(比如，一些银行提供的网上银行基本上采用双因素认证)，要么基本上没有安全。当然，这有点夸张了。重要的是要了解你想要保护的是什么:
Not authorised access. Simplest login form is enough basically. There sometimes additional measures taken like random security questions, CAPTCHAs, password hardening etc. Credential sniffing. HTTPS is A MUST if people access your web application from public Wi-Fi hotspots etc. Mention that even having HTTPS, your users need to change their passwords regularly. Insider attack. There are two many examples of such, starting from simple stealing of your passwords from browser or those that you have written down somewhere on the desk (does not require any IT skills) and ending with session forging and intercepting local network traffic (even encrypted) and further accessing web application just like it was another end-user.
In this particular post, I can see inadequate requirements put on developer which he will never be able to resolve due to the nature of the problem - end-user security. My subjective point is that developer should basically say NO and point on requirement problem rather than wasting time on such tasks, honestly. This does not absolutely make your system more secure, it will rather lead to the cases with stickers on monitors. Unfortunately, some bosses hear only what they want to hear. However, if I was you I would try to explain where the actual problem is coming from, and that autocomplete="off" would not resolve it unless it will force users to keep all their passwords exclusively in their head! Developer on his end cannot protect users completely, users need to know how to use system and at the same time do not expose their sensitive/secure information and this goes far beyond authentication.
恕我直言, 最好的方法是随机选择type=password的输入字段的名称。 使用“pwd”前缀，然后是一个随机数。 动态创建字段并将表单呈现给用户。
您的登录表单看起来像…
<form>
<input type=password id=pwd67584 ...>
<input type=text id=username ...>
<input type=submit>
</form>
然后，在服务器端，当您分析客户端发布的表单时，捕获以“pwd”开头的字段，并将其用作“password”。
