Hardware-based full disk encryption (FDE) is available from many hard disk drive (HDD) vendors, including: Seagate Technology, Hitachi, Western Digital, Samsung, Toshiba and also solid-state drive vendors such as Samsung, Micron and Integral. The symmetric encryption key is maintained independently from the CPU, thus removing computer memory as a potential attack vector. In relation to hard disk drives, the term 'Self-Encrypting Drive' (SED) is in more common usage.
Hardware-FDE has 2 major components: the hardware encryptor and the data store. There are currently 3 varieties of hardware-FDE in common use:
- Hard Disk Drive (HDD) FDE (usually referred to as SED)
- Enclosed hard disk drive FDE
- Bridge and Chipset (BC) FDE
Read more about Hardware-based Full Disk Encryption: Hard Disk Drive FDE, Enclosed Hard Disk Drive FDE, Chipset FDE, Characteristics
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