A Novel Optimization Technique in RC۶ Block Cipher in Different Operational Modes for Image Encryption Based on the Chaos System

The algorithm proposed improvements in image encryption for high security and accessibility while preserving image data. This method employs improved RC۶ encryption cipher block operating on ۱۲۸-bit data blocks in various operational modes of EBC, CBC, OFB, and CFB. Initially segmenting the host image into ۱۲۸-bit blocks, these blocks undergo encryption before forming the final encrypted image. Leveraging a logistic chaos map enhances encryption efficiency. Moreover, encryption methods utilizing chaos are effective for secure image encryption due to their confusion and diffusion properties. This approach not only fortifies security but also streamlines the encryption process for better image protection and accessibility compared to conventional methods like AES and ۳DES.

کلیدواژه ها:

Image encryption ، chaos ، RC۶ ، operation modes