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NIST SP 800-38A

Recommendation for Block Cipher Modes of Operation: Methods and Techniques

Date Published: December 2001

Planning Note (04/28/2023):

NIST is planning to revise this publication. See the announcement for full details.


Morris Dworkin (NIST)



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

System and Communications Protection


Download URL

Supplemental Material:
None available

Publication Parts:
SP 800-38A
SP 800-38B
SP 800-38C
SP 800-38D
SP 800-38E
SP 800-38F
SP 800-38G

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


Security and Privacy

authentication, cryptography