A new algorithm for encryption/decryption based on artificial immunity theory

For the realistic demand of data security communications, the paper proposes a new algorithm for encryption/decryption based on the theory of artificial immunization. It is a new method based on the negative selection algorithm and extracts the encryption factor from the plaintext. Encryption factor as a key group is expanded by the way of the m-sequence and generates pseudo-random key sequence that can be used to encrypt data. Pseudo-random key sequence generated in this way has good characteristics of self-correlation and the encrypted data has a better anti-attack performance. Therefore, there will be a good prospect of application.