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Disk encryption theory
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<p> Disk encryption is a special case of <a href="/facts/Data_at_rest/H1DF7h8a">data at rest</a> protection when the storage medium is a sector-addressable device (e.g., a hard disk). This article presents cryptographic aspects of the problem. For an overview, see <a href="/facts/Disk_encryption/v7E50jGw">disk encryption</a>. For discussion of different software packages and hardware devices devoted to this problem, see <a href="/facts/Disk_encryption_software/AxhTMVE4">disk encryption software</a> and <a href="/facts/Hardware-based_full_disk_encryption/mNx213XK">disk encryption hardware</a>. </p>