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Divested Computing: Primary · Aug 2, 2025

Blog: LUKS Iterations

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Quick reminder to check/increase the iterations on your LUKS keyslots. Default autodetection can for example result in quite low settings such as 3 iterations at 512MB cost if your CPU is slow. I recommend setting 16+ iterations at max 4GB cost. Do note that this can cause unlocking to take 15+ seconds. cryptsetup luksConvertKey /dev/nvme0n1p3 --pbkdf argon2id --pbkdf-memory 4194304…

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