Encryption Algorithm

The cipher mode used for disk encryption is aes-cbc-essiv:sha256. The cipher generator consists of three parts: cipher-chainmode-IVmode. So here cipher is AES, chainmode is CBC, and IV mode is essiv:sha256.

Consult the Linux documentation for more information at:

https://wiki.archlinux.org/index.php/Disk_encryption?#Ciphers_and_modes_of_operation