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验证C#中针对Active Directory的密码复杂性

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我正在编写安装SQL的安装程序,事先提示用户输入将为其创建的SA用户名/密码 . 安装SQL时,它会根据Active Directory策略验证此密码,如果不匹配则会失败 .

我想要做的是在继续安装SQL之前验证用户输入的密码是否有效 .

如何根据Active Directory规则验证密码是否正确?

注意我没有登录来验证answer,而只是验证密码 .

我目前正在尝试这个,但是我知道不允许写“密码”不会引发异常

try
{
    System.DirectoryServices.DirectoryEntry localMachine = new System.DirectoryServices.DirectoryEntry("WinNT://" + Environment.MachineName);
    ListPasswordPolicyInfo(Environment.MachineName);
    System.DirectoryServices.DirectoryEntry newUser = localMachine.Children.Add("localuser", "user");
    newUser.Invoke("SetPassword", new object[] { "3l!teP@$$w0RDz" });
    newUser.Invoke("SetPassword", new object[] { "password" });
    //newUser.CommitChanges();
    //Console.WriteLine(newUser.Guid.ToString());
    localMachine.Close();
    newUser.Close();
}
catch(Exception e)
{
    Console.WriteLine(e.Message);
}

2 回答

  • -1

    经过很多痛苦后,我使用 NetValidatePasswordPolicy 找到了C#解决方案 . 使用PInvoke的支持结构和以下代码

    public static NET_API_STATUS ValidatePassword(string password)
    {
        var outputArgs = new NET_VALIDATE_OUTPUT_ARG();
        var inputArgs = new NET_VALIDATE_PASSWORD_CHANGE_INPUT_ARG();
    
        IntPtr inputPointer = IntPtr.Zero;
        IntPtr outputPointer = IntPtr.Zero;
    
        try
        {
            inputArgs.PasswordMatched = true;
            inputArgs.ClearPassword = Marshal.StringToBSTR(password);
    
            // If using a secure string
            ////inputArgs.ClearPassword = Marshal.SecureStringToBSTR(secureStringPassword);
    
            inputPointer = Marshal.AllocHGlobal(Marshal.SizeOf(inputArgs));
            Marshal.StructureToPtr(inputArgs, inputPointer, false);
    
            NET_API_STATUS status = NetValidatePasswordPolicy(System.Environment.MachineName, IntPtr.Zero, NET_VALIDATE_PASSWORD_TYPE.NetValidatePasswordChange, inputPointer, ref outputPointer);
    
            if (status == NET_API_STATUS.NERR_Success)
            {
                outputArgs = (NET_VALIDATE_OUTPUT_ARG)Marshal.PtrToStructure(outputPointer, typeof(NET_VALIDATE_OUTPUT_ARG));
    
                if (outputArgs.ValidationStatus == NET_API_STATUS.NERR_Success)
                {
                    // Ok
                }
    
                return outputArgs.ValidationStatus;
            }
            else
            {
                return status;
            }
        }
        finally
        {
            if (outputPointer != IntPtr.Zero)
            {
                NetValidatePasswordPolicyFree(ref outputPointer);
            }
    
            if (inputArgs.ClearPassword != IntPtr.Zero)
            {
                Marshal.ZeroFreeBSTR(inputArgs.ClearPassword);
            }
    
            if (inputPointer != IntPtr.Zero)
            {
                Marshal.FreeHGlobal(inputPointer);
            }
        }
    }
    
  • 6
    try{    
    var userName = "bob";
        using (var pc = new PrincipalContext(ContextType.Domain)
        {
              var user = UserPrincipal.FindByIdentity(pc, userName);
              user.ChangePassword(oldpassword, newpassword); //Checks password policy
              //or
              user.SetPassword(newpassword); //Not positive checks password policy but I believe it 2.
        }
    }
    catch(PasswordException ex)
    {
    //do something with ex
    }
    

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