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6
Coding Snacks / Re: Rename folder and files before deleting
« on: May 07, 2018, 01:59 AM »
For your info:
1) I formatted a (small) partition on conventional HDD... - see A.
2) then Recuva deep scan - see B
3) thereafter CCleaner Wipe Free Space - see C
4) then again Recuva deep scan - see D


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7
Coding Snacks / Re: Rename folder and files before deleting
« on: May 07, 2018, 12:20 AM »
Is this a SSD you are using in this test? Fileshreders like Eraser, BCWipe, etc. work well on conventional HDD's
but they say they don't work well on a SSD.
On a SSD 'TRIM' should do the work.
When you run Recuva on your SSD (if you have one), then you will see that a lot of data is revealed.

Opus itself does have a secure delete of files.
Recuva will then show a very long file name consisting of random characters, but it also shows the original folder name.

Ideally it would look like this screenshot, all with Z...ZZ  names and folders

-

8
Coding Snacks / Re: Rename folder and files before deleting
« on: May 06, 2018, 01:32 AM »
Yes, the SSD software (Samsung Magician) also provides secure erase.
That covers the entire drive and will probably run for a century.

Other software,  like Eraser,  can securely delete files only, which in most cases is enough.
In most cases there is no need to secure erase each and every file, but only specific ones, or specific folders.

However, in such cases, after securely deleting files and after running recovery software the file names / folder names are displayed.
Even though files can not be recovered, names show what they were about.

That's the background of my idea.

So, as securely deleting  -files-  on SSD is not possible, at least not that I know of, then the only thing left is to 'hide' them as best as possible
using random names and random 'scratch' folder.
So:
- randomize file name
- create a scratch folder with a random name
- move file to that folder
- delete that folder

Anyway, that is just an idea.



9
Coding Snacks / Rename folder and files before deleting
« on: May 05, 2018, 08:50 AM »
When running Recuva deleted file names are displayed.
Secure deleting files on SSD is not recommended (TRIM should take care of it?)

I just ran Recuva on an SSD and it showed a lot of files and foldernames, even though TRIM is active.

Up front, I don't know whether it is workable or not, but I just  -wondered- ...

Say that once you are deleting a file (for the sake of argument, let's call it 'safe delete')
So, let's say you are 'safe deleting' a file, using 'some kind of special instruction/or tool'
it would then go as follows:
the file will be renamed to some random name e.g. l2LCAnnRpIMkUTmpKf0q.tst 
then it will be moved to a scratch folder with some random name as well, for instance, it is moved to D:\lCQgD45dJSEX1DFLkW8E
then it will be deleted there.
Recuva will show weird paths and weird name, making it at least difficult to guess what it is about.

Right now, within Recuva, one can often guess based on path names.

Again, it is just an idea!

There may be tools that secure delete files on SSD, but they do not clear the MFT records.


10
Coding Snacks / Re: Update Timestamp of file based on time in filename
« on: April 05, 2018, 12:56 AM »
I have a regex for almost every format. Opus vbs script containing all kinds of possibilities. (If this then that, etc.).
With   [-\s_]*  I cover 99% of the cases.
The only  exception is mentioned in my earlier post, specifically updating the time stamp only (date is updated)

Anyway, I suggest to drop the issue. It is not worth spending more time on.

Would like to thank you all for thinking along! Really appreciated.


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