CP and Modified Huffman Technique

A lossless compression algorithm, for genetic sequences, based on two phase, 1st phase- searching for exact R2CP is reported. The compression results obtained in the algorithm show that the exact R2CP are one of the main hidden regularities in DNA sequences. The proposed DNA sequence compression algorithm is based on R2CP substring and creates online Library file acting as a Look Up Table. The R2CP substring is replaced by corresponding ASCII character. Information security is the most challenging question to protect the data from piracy. This proposed method may protect the data from hackers. For better security purpose we have introduced a new security technique in 2nd phase that is selection encryption method. In this technique the data are encrypted either in the Look Up table or in compressed file or in both. It can als