Jointly developed by Mitsubishi Electric and NTT of Japan, Camellia is a 128-bit block cipher that was first published on 2000. It has been approved for use by the ISO/IEC, the European Union's NESSIE project and the Japanese CRYPTREC project.

VeraCrypt uses Camellia with 24 rounds and a 256-bit key operating in XTS mode (see the section Modes of Operation).

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