Cipher Block Parallel Mode

Most of the current symmetric cryptographic algorithms are deterministic algorithms, i.e., for a given plain text and key mix, the encryption dependably results in the same cipher-text. The attacker can misuse this deterministic nature of symmetric block encryption algorithms by carrying cryptanalysis. Different block cipher modes are utilized as a part of an extension to these algorithms to make the resulting Cipher probabilistic in nature. Secure Cipher Block Modes make symmetrical algorithms to execute serially. The proposed cipher block Parallel (CPB) Mode is secure and brings parallelism in the execution of symmetric algorithms. Thereby enables faster encoding of the information blocks on a Multi-processor system framework simultaneously. This paper discusses the design and implementation of cipher block parallel mode in detail, including its security and performance.