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Encryption Algorithms

TrueCrypt volumes can be encrypted using the following algorithms:

AlgorithmDesigner(s)Key Size (Bits)Block Size(Bits)Mode of
Operation
AES

Serpent

Twofish

AES-Twofish

AES-Twofish-Serpent

Serpent-AES

Serpent-Twofish-AES

Twofish-Serpent
J. Daemen, V. Rijmen

R. Anderson, E. Biham, L. Knudsen

B. Schneier, J. Kelsey, D. Whiting, D. Wagner, C. Hall, N. Ferguson
256

256

256

256; 256

256; 256; 256

256; 256

256; 256; 256

256; 256
128

128

128

128

128

128

128

128
XTS

XTS

XTS

XTS

XTS

XTS

XTS

XTS

For information about XTS mode, please see the section Modes of Operation.