A New Image Encryption Algorithm Combining the Meaning of Location with Output Feedback Mode

Encryption is very essential to secure data in multimedia and communication systems. This paper represents a new concept for image encryption using a new method based on the Meaning of Location (MOL) and the Output Feedback Mode (OFB). In this method, the public key is an image which will be converted into RGB numbers and the private key is random integers used to permutate the image. The initialization vector of the “OFB” mode is going to be encrypted using the locations of the RGB numbers. Security analysis of the proposed algorithm has been measured and approved its strength. Statistical tests show that the MOL-OFB algorithm is suitable for securing multimedia applications and it has the potential to secure communication systems in a variety of wired/wireless scenarios such as mobile phone services and smartcards.