Create LUKS2 persistent volumes by default
Originally created by @je843 on #15450 (Redmine)
Cryptsetup 2.0.x supports the LUKS2 format that includes the Argon2i and
Argon2id hash algorithms. Argon2 is a memory-hard hash that strengthens
low-entropy passphrases.
Attacker costs should be much higher then the current Cryptsetup 1.X
which uses PBKDF2 which hashes with SHA-256.
cryptsetup allows converting existing LUKS volumes to LUKS2. But for the first iteration, let’s only consider using LUKS2 for newly created persistent volumes.
Status and Next Steps
Most of the work was done on (not merged) !256 (closed), aka wip/feature/15450-luks2, already.
Next steps are:
- #18040
- guestfs'
luks_openfails withNot enough available memory to open a keyslotNot enough available memory to open a keysloton some host testing systems
Related issues
- Blocked by sysadmin#17731 (closed)
- Related to #14468 (closed)
- Blocked by #15944 (closed)
- Blocked by #17457 (closed)