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Old 09-14-2003, 06:44 PM   #1
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Registered: Sep 2003
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If this belongs in general, please let me know.

This was orignaly posted on dubyadubyadubya dot linuxquestions dot gro/questions/showthread.php?s=&postid=480359#post480359 Security.

EFS 2.6.0-test4
( post #1)

If this belongs in general, please let me know.

I am trying to set up an EFS on Linux 2.6.0-test4. Ive ran an EFS before, but cant seem to get it again. In the kernel I have HMAC static (i read this while searching the archives I dont know if its necessary) Serpent and AES as modules and cryptoloop as a module. When I try losetup -e serpent /dev/loop0 /tmp/crypto (the file exists) it just returns me to a bash prompt. I can then kill the loop device. When I try it with -e aes it tells me that cipher isnt loaded. I dont have a /proc/cihpers but I do have a /proc/crypto heres the entries.

cat /proc/crypto
name : serpent
module : serpent
blocksize : 16
min keysize : 0
max keysize : 32

name : aes
module : aes
blocksize : 16
min keysize : 16
max keysize : 32

Heres a cut and paste from me trying to get either a serpent, or aes EFS on the /tmp/crypto file.
mebox:/usr/src/linux# modprobe cryptoloop serpent
mebox:/usr/src/linux# losetup -e serpent /dev/loop0 /tmp/crypto
mybox:/usr/src/linux# losetup -d /dev/loop0
mybox:/usr/src/linux# modprobe aes
mybox:/usr/src/linux# losetup -e aes /dev/loop0 /tmp/crypto
The cipher does not exist, or a cipher module needs to be loaded into the kernel
ioctl: LOOP_SET_STATUS: Invalid argument
mybox:/usr/src/linux# losetup -d /dev/loop0
ioctl: LOOP_CLR_FD: No such device or address

Any help would be appreciated.
Old 09-16-2003, 05:05 PM   #2
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Registered: Mar 2002
Location: Salt Lake City, UT - USA
Distribution: Gentoo ; LFS ; Kubuntu
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Please do not post the same thread in more than one forum. Picking the most relevant forum and posting it once there makes it easier for other members to help you and keeps the discussion all in one place.

This thread will now be closed. In the future, if you want your message moved, contact the Moderators of that forum and make a request with them to move it to the more desired/appropriate forum.


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