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[TGD] Report: SSDs "difficult" to securely erase - Page 5

post #41 of 78
Quote:
Originally Posted by impagliazzo View Post
i'm really concerned about all the potential ocean polluters here on ocn.
lol.
post #42 of 78
My pr0nz will get me bustedx0r now. Oh no3z.
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post #43 of 78
No more whale wars... ssd wars!!!
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post #44 of 78
kill it with fire?
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post #45 of 78
Why don't we just bury it, it's small enough. That way we can retrieve it in the future.
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post #46 of 78
Quote:
Originally Posted by beers View Post
You'd think by this point in time they would at least implement full drive encryption.
It's not like you'd lose a bunch of performance, especially with CPU's coming out which utilize an AES instruction set..
SF-1200/1500 controllers automatically encrypt all data prior to being written to memory with 128-bit AES.
SF-2000 goes even further using 256-bit & 128-bit AES.
Quote:
SandForce's family of SF-1500 controllers used the 128-bit AES algorithm to encrypt data as it was written to the flash memory.
The new processor encrypts data with the 256-bit AES algorithm in the processor first and then encrypts the data again using the 128-bit AES algorithm as it writes it to memory.
Quote:
"Essentially, I'm more secure than the [National Security Agency] requires me to be," Smith said. "Now we encrypt data coming into the controller, so no one has to worry about someone taking over the chip and being able to get at the data."

Edited by Trigunflame - 2/21/11 at 5:38pm
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post #47 of 78
Will microwaving the NAND chips destroy the data?
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post #48 of 78
Used ssd on ebay, once I thought you were trash now I see your treasure.
*starts data mining*

jk, please no fbi.
post #49 of 78
Ever wonder why it only takes like 30 seconds to wipe a SSD? It is because it does not really erease all of it. Kind of like how when you delete a file in windows it just deletes the link to the file so that Windows thinks it is gone and will overwrite that space later on with new data. That is why we zero and random write a HDD to secure erase it.

Problem with SSDs is that many of them work differently in how they read and write data. But for demonstration purposes I will just say that the SSDs version of the FAT (wherever it may be located) would be secure erased and the drive would appear to be empty and all areas would be free to be written to it. (Has something to do with being like this because it is a lot faster to zero the drive then write ones to the whole thing, maybe the other way around, but anyway they do it this way to save time,)

The real problem is that it is painfully slow to zero or random write a SSD (like dban or killdisk). It may be just due to how a SSD works, but regardless I have not been able to find out why it takes so long or why they do not work well with this type of program. (this is speaking from experience on my Intel X-25, not sure if things have changed yet)

The one thing you read is that they do not recommend it because it counts as a complete write and takes a tiny bit of life off the drive. I think this is a small price to pay so that someone could properly secure erase the drive before selling it.

The good news though, is that if you really need to destroy the data (in a hurry or not) a SSD is much easier to physically destroy than a HDD. Just smash up all the chips and your done.
Edited by K3VL4R - 2/21/11 at 6:09pm
post #50 of 78
When I perform a secure erase it only takes a second.Zap and it's all gone,just like new.

Uh or is it?Sure runs like new.
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