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why some flash memory manufacturers factory encrypt flash memory,

i heard stories that some manufacturers have default encryption on and making data recovery impossible.

is there any reason why it is done on first?what it achives to have factory encrypted flash memory chip?

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there is no such thing as encrypted NAND flash memory, only way is to store encrypted data into it. Could do it through software or hardware (i.e. the controller on the storage drive). Data recovery is still possible if you know how it's encrypted however

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1. Erasing. If everything is encrypted it is enough to wipe the key.

2. Making revere engineering more difficult.

3. Partly protection/making attacks slightly more difficult.

 

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-> Moved to Storage Devices

^^^^ That's my post ^^^^
<-- This is me --- That's your scrollbar -->
vvvv Who's there? vvvv

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