cryptsetup

Manage plain dm-crypt and LUKS (Linux Unified Key Setup) encrypted volumes.

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• Initialize a LUKS volume (overwrites all data on the partition):

cryptsetup luksFormat {/dev/sda1}

• Open a LUKS volume and create a decrypted mapping at /dev/mapper/{target}:

cryptsetup luksOpen {/dev/sda1} {target}

• Remove an existing mapping:

cryptsetup luksClose {target}

• Change the LUKS volume's passphrase:

cryptsetup luksChangeKey {/dev/sda1}

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