private static extern int AcceptSecurityContext__(SecHandle phCredential,
SecHandle phContext, ref SecBufferDescNative pInput, int fContextReq, int TargetDataRep,
SecHandle phNewContext, ref SecBufferDescNative pOutput, ref int pfContextAttr,
ref Int64 ptsExpiry);
private static extern int VerifySignature__(SecHandle phContext,
ref SecBufferDescNative pMessage, int MessageSeqNo,
ref int pfQOP);
private static extern int MakeSignature__(SecHandle phContext, int fQOP,
ref SecBufferDescNative pMessage, int MessageSeqNo);
private static extern int InitializeSecurityContext__(SecHandle phCredential,
SecHandle phContext, string pszTargetName, int fContextReq, int Reserved1,
int TargetDataRep, ref SecBufferDescNative pInput, int Reserved2, SecHandle phNewContext,
ref SecBufferDescNative pOutput, ref int pfContextAttr, ref Int64 ptsExpiry);
private static extern int EncryptMessage__(SecHandle phContext,
int pfQOP, ref SecBufferDescNative pMessage, int MessageSeqNo);
private static extern int DecryptMessage_NT(SecHandle phContext,
ref SecBufferDescNative pMessage, int MessageSeqNo,
ref int pfQOP);