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Results tagged with hmac
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user 40808
HMAC is a method for constructing a message authentication code based on a cryptographic hash function.
29
votes
6
answers
5k
views
Why not authenticate full-disk encryption?
With 512-byte sectors and HMAC-SHA256 for authentication, you would consume roughly 6 % of disk space if each sector was fully authenticated. … With 4096-byte sectors, space is a complete non-issue, less than 1 % is spent on per-sector HMAC tags. …
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