Hi Jeba
just thinking out loud:
> if that password == password in superblock
> mount filesystem
> else
> mount fails
If the password is also stored then one can use a disk
utility to examine the harddisk and retrieve the
password unless you further encrypt the data too.
while I haven't worked on filesystems, a better
spproach is encrypt the filesystem with the password
which I guess is a symmetric cipher you're using.
Store a CRC of the a particular data. After decryption
if the CRCs match, then allow further access.
essentially:
get passwd
plaintext = decipher(passwd, ciphertext)
if (crc(plaintext)==stored_crc)
{
/*allow access*/
}
else
{
/*bomb out with error*/
}
regards,
Sharath
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