In the draft Special Publication 800-38C, Recommendation for Block Cipher Modes of Operation: the CCM Mode for Authentication and Confidentiality, the CCM mode of the Advanced Encryption Standard (AES) algorithm is specified for the protection of sensitive, unclassified data. The CCM algorithm combines the counter (CTR) mode for confidentiality with the cipher block chaining-message authentication code (CBC-MAC) technique for authentication. Further information on the development of block cipher modes of operation is available at the modes home page http://nist.gov/modes/.
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