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A comment on Old-School PC Copy Protection Schemes (2006). Parent comment

Re:Old-School PC Copy Protection Schemes (2006) by flyinghamster on Tuesday July 19, 2016 @12:13PM (#12122574)
Shouldn't the ATA Secure Erase command take care of properly blanking an SSD? (Assuming that its firmware can be trusted, of course.)

In practice, it's a bit more complicated, though - typically the BIOS (or is the operating system?) locks out Secure Erase and you have to hot-remove the drive and reconnect it before the drive will accept it.

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Re:Old-School PC Copy Protection Schemes (2006) by bitwize on Tuesday July 19, 2016 @12:24PM (#12122644)
> Shouldn't the ATA Secure Erase command take care of properly blanking an SSD? (Assuming that its firmware can be trusted, of course.)

It does that -- by clobbering the hw encryption key.

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