Re: LUKS2 AES-GCM-random erroring with key size issue.
vinay paduru <[email protected]>
| Newsgroups | gmane.linux.kernel.device-mapper.dm-crypt |
|---|---|
| Message-ID | <BYAPR05MB5749AA56827852996E215E90E3E70@BYAPR05MB5749.namprd05.prod.outlook.com> |
Hello Milan, Yes, I have the module installed and enabled. # lsmod | grep -i gcm gcm 24576 0 # modprobe gcm # modinfo gcm filename: /lib/modules/4.1.12-61.1.19.el7uek.x86_64/kernel/crypto/gcm.ko alias: crypto-gcm alias: gcm alias: crypto-rfc4543 alias: rfc4543 alias: crypto-rfc4106 alias: rfc4106 alias: crypto-gcm_base alias: gcm_base author: Mikko Herranen <[email protected]> description: Galois/Counter Mode license: GPL srcversion: 0805471CE9244CDA1D08732 depends: intree: Y vermagic: 4.1.12-61.1.19.el7uek.x86_64 SMP mod_unload modversions signer: Oracle CA Server sig_key: 99:0C:6B:AD:6E:20:40:AB:2F:AC:19:2B:13:86:80:73:E1:2A:95:FB sig_hashalgo: sha512 #cryptsetup luksFormat --type luks2 /dev/sdb2 --cipher aes-gcm-random --integrity aead WARNING! ======== This will overwrite data on /dev/sdb2 irrevocably. Are you sure? (Type 'yes' in capital letters): YES Enter passphrase for /dev/sdb2: Verify passphrase: Cipher aes-gcm-random (key size 256 bits) is not available. # Vinay On 28 Feb 2020, 4:51 PM +0530, Milan Broz <[email protected]>, wrote: On 27/02/2020 06:37, vinay paduru wrote: I am trying to encrypt a volume with *LUKS2* *AES-GCM-Random* cipher and I am seeing an error saying “key size 256 bits” not available. I tried changing the key size but same error repeats for whatever the key size we give. Do you have kernel with gcm crypto module enabled? Milan _______________________________________________ dm-crypt mailing list [email protected] https://www.saout.de/mailman/listinfo/dm-crypt