On the Security of CTR + CBC-MAC

作者: Jakob Jonsson

DOI: 10.1007/3-540-36492-7_7

关键词: CryptographyComputer securityCCM modeBlock cipher mode of operationComputer scienceBlock cipherCWC modeCBC-MACOCB modeAuthenticated encryption

摘要: We analyze the security of CTR + CBC-MAC (CCM) encryption mode. This mode, proposed by Doug Whiting, Russ Housley, and Niels Ferguson, combines ("counter") mode with message authentication is based on a block cipher such as AES. present concrete lower bounds for CCM in terms underlying cipher. The conclusion that provides level privacy authenticity line other modes OCB.

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