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SP 800-38A

Recommendation for Block Cipher Modes of Operation: Methods and Techniques

Date Published: December 2001

Planning Note (5/10/2021): This publication is currently under review by NIST's Crypto Publication Review Board. Public comments on the existing publication may be submitted through June 11, 2021. See the full announcement for more details.


Morris Dworkin (NIST)



block cipher; cryptography; encryption; mode of operation
Control Families

System and Communications Protection


SP 800-38A (DOI)
Local Download

Supplemental Material:
None available

Other Parts of this Publication:
SP 800-38A Addendum

Document History:
12/01/01: SP 800-38A (Final)


Security and Privacy
authentication; cryptography