A novel image encryption method based on chaotic maps

We are living in the world in which most people and organizations communicate via digital devices so that a large quantity of information is electronically saved. In this condition, it´s readily possible to access sensitive organizational and personal information. There is no doubt that of digital data, multimedia data carry heavy information load. This paper attempts to provide an efficient method for encryption digital image using logistic and Tent map in order to protect digital images in cyber space. In order to assess the performance of our method, it was implemented in Matlab. Its validity was also measured by these frequently used tests: key space analysis, histogram test, Entropy, Encryption quality, MAE, NPCR and UACI. The results have shown that our method possesses adequate efficiency.