} unicode_string;

	/* 
	 * typedef struct _SID_IDENTIFIER_AUTHORITY {
	 *     UCHAR Value[6];
	 * } SID_IDENTIFIER_AUTHORITY, *PSID_IDENTIFIER_AUTHORITY;
	 * 
	 * #define SECURITY_NT_AUTHORITY           {0,0,0,0,0,5}
	 * 
	 * typedef struct _SID {
	 *    UCHAR Revision;
	 *    UCHAR SubAuthorityCount;
	 *    SID_IDENTIFIER_AUTHORITY IdentifierAuthority;
	 *    [size_is(SubAuthorityCount)] ULONG SubAuthority[*];

	} unicode_string;

	/* 
	 * typedef struct _SID_IDENTIFIER_AUTHORITY {
	 *     UCHAR Value[6];
	 * } SID_IDENTIFIER_AUTHORITY, *PSID_IDENTIFIER_AUTHORITY;
	 * 
	 * #define SECURITY_NT_AUTHORITY           {0,0,0,0,0,5}
	 * 
	 * typedef struct _SID {
	 *    UCHAR Revision;
	 *    UCHAR SubAuthorityCount;
	 *    SID_IDENTIFIER_AUTHORITY IdentifierAuthority;
	 *    [size_is(SubAuthorityCount)] ULONG SubAuthority[*];

        if ( this.identifier_authority[ 0 ] != (byte) 0 || this.identifier_authority[ 1 ] != (byte) 0 ) {
            ret += "0x";
            ret += Hexdump.toHexString(this.identifier_authority, 0, 6);
        }
        else {
            long shift = 0;
            long id = 0;
            for ( int i = 5; i > 1; i-- ) {
                id += ( this.identifier_authority[ i ] & 0xFFL ) << shift;

        if (identifier_authority[0] != (byte)0 || identifier_authority[1] != (byte)0) {
            ret += "0x";
            ret += Hexdump.toHexString(identifier_authority, 0, 6);
        } else {
            long shift = 0;
            long id = 0;
            for (int i = 5; i > 1; i--) {
                id += (identifier_authority[i] & 0xFFL) << shift;
                shift += 8;

            int _sub_authorityi = _src.index;
            _src.advance(4 * _sub_authoritys);

            if (identifier_authority == null) {
                if (_identifier_authoritys < 0 || _identifier_authoritys > 0xFFFF) throw new NdrException( NdrException.INVALID_CONFORMANCE );
                identifier_authority = new byte[_identifier_authoritys];
            }
            _src = _src.derive(_identifier_authorityi);

            _src.advance(4 * _sub_authoritys);

            if ( this.identifier_authority == null ) {
                if ( _identifier_authoritys < 0 || _identifier_authoritys > 0xFFFF )
                    throw new NdrException(NdrException.INVALID_CONFORMANCE);
                this.identifier_authority = new byte[_identifier_authoritys];
            }
            _src = _src.derive(_identifier_authorityi);