以编程方式读取本地密码策略

见 Security Watch Windows Domain Password Policies . 你可以用打广告 ADSI 或者它的包装纸。我找到了一个 VBScript sample . 您可以将其翻译为任何语言:

Sub ListPasswordPolicyInfo( strDomain )
    Dim objComputer
    Set objComputer = GetObject("WinNT://" & strDomain )
    WScript.Echo "MinPasswordAge: " &  ((objComputer.MinPasswordAge) / 86400)
    WScript.Echo "MinPasswordLength: " &  objComputer.MinPasswordLength
    WScript.Echo "PasswordHistoryLength: " &  objComputer.PasswordHistoryLength
    WScript.Echo "AutoUnlockInterval: " &  objComputer.AutoUnlockInterval
    WScript.Echo "LockOutObservationInterval: " &  objComputer.LockOutObservationInterval
End Sub

Dim strDomain
Do
    strDomain = inputbox( "Please enter a domainname", "Input" )
Loop until strDomain <> ""

ListPasswordPolicyInfo( strDomain )

作为奖励,退房 LDAP Admin . 它是一个开源的LDAP目录编辑器,可以用来测试东西,还可以签出用Delphi编写的代码。

尤金的回答很有帮助,但不是我所需要的。密码复杂性过滤器实际上可以定制,问Windows有什么好方法,这个密码符合要求吗?

我花了一段时间才找到它,但功能是 NetValidatePasswordPolicy . 此功能的msdn文档很糟糕;请查看此 MSDN blog entry 相反。

查询ActiveDirectory只适用于加入域的计算机;在该域中,用户可以查询域控制器(这是可以取消授予的功能)。

@尼古拉斯沃尔森的使用回答 NetValidatePasswordPolicy 很好,因为它可以帮你做很多重的提升。它甚至可以执行密码质量检查,您必须重新实现自己。但是 网络验证密码策略 当使用salted散列存储密码(例如bcrypt或scrypt)时,检查自定义密码历史记录失败。

但真正的问题是如何查询当前计算机(甚至是非加入域的计算机)的密码策略。您可以使用以下方法查询:

NetUserModalsGet

struct USER_MODALS_INFO_0
{
    DWORD usrmod0_min_passwd_len;
    DWORD usrmod0_max_passwd_age;
    DWORD usrmod0_min_passwd_age
    DWORD usrmod0_force_logoff; 
    DWORD usrmod0_password_hist_len;
}
PUSER_MODALS_INFO_0 = ^USER_MODALS_INFO_0;    

PUSER_MODALS_INFO_0 info0;

NET_API_STATUS res = NetUserModalsGet(nil, 0,  out info0);

if (res <> NERR_Success)
   RaiseWin32Error(res);
try
   //Specifies the minimum allowable password length. 
   //Valid values for this element are zero through PWLEN.
   Log(info0.usrmod0_min_passwd_len);

   //Specifies, in seconds, the maximum allowable password age. 
   //A value of TIMEQ_FOREVER indicates that the password never expires. 
   //The minimum valid value for this element is ONE_DAY. 
   //The value specified must be greater than or equal to the value for the usrmod0_min_passwd_age member.
   Log(info0.usrmod0_max_passwd_age);

   //Specifies the minimum number of seconds that can elapse between the time
   //a password changes and when it can be changed again. 
   //A value of zero indicates that no delay is required between password updates. 
   //The value specified must be less than or equal to the value for the usrmod0_max_passwd_age member.
   Log(info0.usrmod0_min_passwd_age);

   //Specifies, in seconds, the amount of time between the end of the valid
   // logon time and the time when the user is forced to log off the network. 
   //A value of TIMEQ_FOREVER indicates that the user is never forced to log off. 
   //A value of zero indicates that the user will be forced to log off immediately when the valid logon time expires.
   Log(info0.usrmod0_force_logoff);

   //Specifies the length of password hi'+'story maintained. 
   //A new password cannot match any of the previous usrmod0_password_hist_len passwords. 
   //Valid values for this element are zero through DEF_MAX_PWHIST
   Log(info0.usrmod0_password_hist_len);
finally
   NetApiBufferFree(info0);
end;