The encryption key set for the AES is stored in the NAND of the SSD. In BIOS, Security > Password on boot > HDD Password (※ May differ depending on the BIOS).Some systems or BIOS may not support this feature.
If you enable the HDD Password in BIOS, SED using the Class0 mode will be enabled, and you don't need to install separate software. The larger the bit number, the more powerful the encryption becomes. 256bit refers to the length of the key used for data encryption. Some Samsung SSD models (840, 840 Pro, 840 Evo, 850 PRO) support AES-256bit. The AES technology applied to the SSD employs hardware-based controller and encryption technology, which minimizes the loss of performance and encrypts data to protect the stored information against external access. AES (Advanced Encryption Standard, Class0 SED) technology is the standard algorithm of the United States that was designed to protect computer data.
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