Re: Detecting Encrypted Files in a mounted Windows FS?

I'm not a 100% sure, but I think you can see whether the file's encrypted by checking its properties on the Windows box.

I'm fairly certain you couldn't tell from the Linux side, since, as you said, it's transparent to you.

I'd check, but I don't have an XP box with an NTFS drive available within easy reach. On Win2k, it's in Properties, then click Advanced.
--
Mike

Comment on Re: Detecting Encrypted Files in a mounted Windows FS?

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Re: Re: Detecting Encrypted Files in a mounted Windows FS? by traveler (Parson) on Aug 07, 2002 at 20:08 UTC
Yeah, I intend to set up the directories myself and they should all be encrypted. What I'd like to do is ensure that the file is encrypted and send mail to the user if it isn't. --traveler	[reply]
Re: Re: Re: Detecting Encrypted Files in a mounted Windows FS? by RMGir (Prior) on Aug 07, 2002 at 20:49 UTC
Interestingly, you can get this on Windows if you have ActivePerl installed, using the Win32::File module. The catch (apart from the fact that you'd like to do this from Linux) is that Win32::File doesn't seem to have a constant for "ENCRYPTED", but it does return the correct bit set... `grep FILE_ATTRIBUTE_ENCRYPTED \.h Include/WinNT.h:#define FILE_ATTRIBUTE_ENCRYPTED 0x00004000` [download] And running GetAttributes on an encrypted file yields: `C:\>perl -MWin32::File -e"Win32::File::GetAttributes('README.TXT',$x); + printf qq(%X\n),$x;map {printf qq(%-10s %08X\n),$_,&{'Win32::File::'.$_}} qw +(ARCHIVE C OMPRESSED DIRECTORY HIDDEN NORMAL OFFLINE READONLY SYSTEM TEMPORARY)" 6021 ARCHIVE 00000020 COMPRESSED 00000800 DIRECTORY 00000010 HIDDEN 00000002 NORMAL 00000080 OFFLINE 00001000 READONLY 00000001 SYSTEM 00000004 TEMPORARY 00000100` [download] I realize that doesn't really help you from Linux, unless you set up an "isencrypted_d" service running on NT :) If you're curious, the 0x2000 bit is "FILE_ATTRIBUTE_NOT_CONTENT_INDEXED"... -- Mike	[reply] [d/l] [select]