Note to the Authentication Operate Modes of Block Cipher and Provable Security

The validity of the provable security of counter with cipher block chaining message authentication code (CCM) mode and cipher-based message authentication code (CMAC) mode was studied and proved. The illustrations of different communications' encryption have been developed. The security of the novel authentication operation mode is demonstrated with flowing chart. The standardized operation modes of block cipher are proved to be safe in various environments. The proposed procedure is also applicable to Galois/counter mode (GCM) operation mode published in July, 2007. The provable security is a necessary process for a new mode of block cipher.