在.net中,我可以使用域名和用户名创建NTAccount
,并获取它的SID。
但我无法使用翻译功能将SID转换回NTAccount。
new SecurityIdentifier(stringSid).Translate(typeof(NTAccount)).ToString();
这种双向转换代码在域控制器上运行没有问题。
也许有些配置错了?
答案 0 :(得分:4)
SecurityIdentifier.Translate()方法仅适用于域帐户,因此您的计算机可能未附加到域。要将本地SID解析为帐户名,您可以使用Win32 API函数LookupAccountSid()查看here。
答案 1 :(得分:1)
您可以在.NET中更轻松,更通用地使用DirectoryServices,而不是使用SecurityIdentifier。
在codeproject中,有一个很好的示例: http://www.codeproject.com/KB/cs/getusersid.aspx
代码是:
private string GetSid(string strLogin)
{
string str = "";
// Parse the string to check if domain name is present.
int idx = strLogin.IndexOf('\\');
if (idx == -1)
{
idx = strLogin.IndexOf('@');
}
string strDomain;
string strName;
if (idx != -1)
{
strDomain = strLogin.Substring(0, idx);
strName = strLogin.Substring(idx+1);
}
else
{
strDomain = Environment.MachineName;
strName = strLogin;
}
DirectoryEntry obDirEntry = null;
try
{
Int64 iBigVal = 5;
Byte[] bigArr = BitConverter.GetBytes(iBigVal);
obDirEntry = new DirectoryEntry("WinNT://" +
strDomain + "/" + strName);
System.DirectoryServices.PropertyCollection
coll = obDirEntry.Properties;
object obVal = coll["objectSid"].Value;
if (null != obVal)
{
str = this.ConvertByteToStringSid((Byte[])obVal);
}
}
catch (Exception ex)
{
str = "";
Trace.Write(ex.Message);
}
return str;
}
private string ConvertByteToStringSid(Byte[] sidBytes)
{
StringBuilder strSid = new StringBuilder();
strSid.Append("S-");
try
{
// Add SID revision.
strSid.Append(sidBytes[0].ToString());
// Next six bytes are SID authority value.
if (sidBytes[6] != 0 || sidBytes[5] != 0)
{
string strAuth = String.Format
("0x{0:2x}{1:2x}{2:2x}{3:2x}{4:2x}{5:2x}",
(Int16)sidBytes[1],
(Int16)sidBytes[2],
(Int16)sidBytes[3],
(Int16)sidBytes[4],
(Int16)sidBytes[5],
(Int16)sidBytes[6]);
strSid.Append("-");
strSid.Append(strAuth);
}
else
{
Int64 iVal = (Int32)(sidBytes[1]) +
(Int32)(sidBytes[2] << 8) +
(Int32)(sidBytes[3] << 16) +
(Int32)(sidBytes[4] << 24);
strSid.Append("-");
strSid.Append(iVal.ToString());
}
// Get sub authority count...
int iSubCount = Convert.ToInt32(sidBytes[7]);
int idxAuth = 0;
for (int i = 0; i < iSubCount; i++)
{
idxAuth = 8 + i * 4;
UInt32 iSubAuth = BitConverter.ToUInt32(sidBytes, idxAuth);
strSid.Append("-");
strSid.Append(iSubAuth.ToString());
}
}
catch (Exception ex)
{
Trace.Warn(ex.Message);
return "";
}
return strSid.ToString();
}
文章中还有从SID字节到字符串的转换。