Image encryption schemes for JPEG and GIF formats based on 3D baker with compound chaotic sequence generator

TL;DR

This paper introduces novel chaotic image encryption methods tailored for JPEG and GIF formats, enabling lossless encryption for JPEG and preserving animation in GIF, demonstrating high security and promising prospects for chaotic encryption.

Contribution

It adapts a 3D baker-based chaotic encryption scheme to JPEG and GIF formats, overcoming lossy transformations and maintaining animation.

Findings

Encryption is lossless for JPEG images.

GIF encryption preserves animation properties.

Security tests show high robustness.

Abstract

This paper proposed several methods to transplant the compound chaotic image encryption scheme with permutation based on 3D baker into image formats as Joint Photographic Experts Group (JPEG) and Graphics Interchange Format (GIF). The new method averts the lossy Discrete Cosine Transform and quantization and can encrypt and decrypt JPEG images lossless. Our proposed method for GIF keeps the property of animation successfully. The security test results indicate the proposed methods have high security. Since JPEG and GIF image formats are popular contemporarily, this paper shows that the prospect of chaotic image encryption is promising.