1.NTLM是什么
早期SMB协议在网络上传输明文口令。后来出现 LAN Manager Challenge/Response 验证机制,简称LM,它是如此简单以至很容易就被破解。微软提出了WindowsNT挑战/响应验证机制,称之为NTLM。现在已经有了更新的NTLMv2以及Kerberos验证体系。NTLM是windows早期安全协议,因向后兼容性而保留下来。NTLM是NT LAN Manager的缩写,即NT LAN管理器。NTLM 是为没有加入到域中的计算机(如独立服务器和工作组)提供的身份验证协议。
详细说明可以参考下面资源:
http://baike.baidu.com/view/351131.htm?fr=ala0_1
http://www.hudong.com/wiki/NTLM
http://en.wikipedia.org/wiki/NTLM
2.NTLM验证允许Windows用户使用当前登录系统的身份进行认证,当前用户应该是登陆在一个域(domain)上,他的身份是可以自动通过浏览器传递给服务器的。它是一种单点登录的策略,系统可以通过NTLM重用登录到Windows系统中的用户凭证,不用再次要求用户输入密码进行认证。
下面是.NET的实现方式,如下:
static void Main(string[] args)
{
try
{
CredentialCache MyCredentialCache = new CredentialCache();
MyCredentialCache.Add(new Uri("http://eip.****.com /default.aspx"), "NTLM", new NetworkCredential("carysun", "****", "******"));
HttpWebRequest req;
req = (HttpWebRequest)HttpWebRequest.Create("http://eip.****.com /default.aspx ");
req.Method = "GET";
req.KeepAlive = true;
req.Credentials = MyCredentialCache;
//保存cookie
CookieContainer cc = new CookieContainer();
req.CookieContainer = cc;
HttpWebResponse res;
res = (HttpWebResponse)req.GetResponse();
Console.WriteLine(res.StatusCode);
if (res.StatusCode == HttpStatusCode.OK)
{
//验证成功
Console.WriteLine(res.StatusCode);
}
}
catch (Exception ex)
{
//验证失败
}
Console.ReadLine();
}
python-ntlm(官网地址:http://code.google.com/p/python-ntlm/)是一个用来访问NTLM认证网址的module。下面是借助该module的实现代码。
import urllib2
from urlparse import urlparse, urlunparse
from ntlm import HTTPNtlmAuthHandler
from urllib2 import Request, urlopen, URLError, HTTPError
user = '*****\\carysun'
password = "********"
url = "http://eip.*****.com/default.aspx"
passman = urllib2.HTTPPasswordMgrWithDefaultRealm()
passman.add_password(None, url, user, password)
# create the NTLM authentication handler
auth_NTLM = HTTPNtlmAuthHandler.HTTPNtlmAuthHandler(passman)
# create and install the opener
opener = urllib2.build_opener(auth_NTLM)
urllib2.install_opener(opener)
req = urllib2.Request(url)
try:
response = urllib2.urlopen(req)
except HTTPError,e:
print 'Error code:',e.code
except URLError,e:
print 'Reason:',e.reason
else:
print (response.read())
本文转自生鱼片博客园博客,原文链接:http://www.cnblogs.com/carysun/archive/2010/03/09/NTLM.html,如需转载请自行联系原作者