When SandForce announced the SF-2000 SSD controller family, it touted the controller's ability to encrypt data with a 256-bit AES algorithm. The previous generation of SandForce controllers did 128-bit AES encryption, but the new chip added a second hardware engine with AES-256 support. Trouble is, the SF-2000 controller's 256-bit encryption doesn't work properly. Although the latest SandForce controllers encrypt data using AES, they do so using only 128 bits.
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