PSA: Yes, 64-byte key file is okay
- Posted by Michał ‘mina86’ Nazarewicz on 4th of April 2017
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In an earlier entry I’ve changed generated key file used for disk encryption from 4096 to meagre 64 bytes. I gave no mention of that adjustment considering it unimportant but have since been enquired about security of such a short password.
Rest assured, a 64-byte key file is sufficient for any symmetric encryption (disk encryption being one example) and anything more does not improve security.