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SP 800-38E

Recommendation for Block Cipher Modes of Operation: the XTS-AES Mode for Confidentiality on Storage Devices

Date Published: January 2010

Planning Note (8/6/2021): This publication is under review, with public comments accepted through October 1, 2021. See the full announcement and Crypto Publication Review Project for more details.


Morris Dworkin (NIST)



Block cipher; ciphertext stealing; computer security; confidentiality; cryptography; encryption; information security mode of operation; tweakable block cipher.
Control Families

System and Communications Protection


SP 800-38E (DOI)
Local Download

Supplemental Material:
None available

Document History:
01/18/10: SP 800-38E (Final)


Security and Privacy
authentication; cryptography