In May 2021, NIST initiated a review process for several publications, including the Special Publication (SP) 800-38A, Recommendation for Block Cipher Modes of Operation: Methods and Techniques and its addendum, Three Variants of Ciphertext Stealing for CBC Mode.
In response to the public comments received, NIST proposes to revise SP 800-38A to:
- change the technical content as described below, and
- convert (i.e., merge) SP 800-38A Addendum into the revised SP 800-38A.
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