Re: PATCH - ext2fs privacy (i.e. secure deletion) patch

[the grugq <grugq@hcunix.net>]

Well, I think secure deletion should be an option for everyone. Using 
encryption is a data hiding technique, you prevent people for detemining 
what sort of data is being stored there. Now, admittedly I dont know at 
what level the reiser4 encryption appears, but I would think its safer 
to have complete erasure when a file deleted regardless of how well 
protected its contents were.

just a thought.

--gq

Hans Reiser wrote:
> Jamie Lokier wrote:
> 
>> Valdis.Kletnieks@vt.edu wrote:
>>  
>>
>>> Actually, I have encountered file systems where two successive
>>> write() calls from userspace to the same offset in the file wouldn't
>>> end up in the same physical location on the disk (AIX's JFS with 
>>> compression).
>>>   
>>
>>
>> See also:
>>
>>    - ext3 with data journalling
>>
>>    - reiser4 with wandering logs
>>
>>    - experimental ext? patches for tail-packing small files
>>
>> -- Jamie
>> -
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>>  
>>
> reiser4 probably does not need secure deletion as much as others, 
> because once the encryption plugins are debugged we will most likely 
> encourage users to use encryption by default.  Perhaps someone will show 
> the error in my thinking though, I am not trying to be rigid here....
>