Exploring Advanced Encryption and Steganography Techniques for Image Security

This paper investigates the use of modern steganography techniques for secure image transmission, utilizing four encryption algorithms: AES, DES, RSA, and ChaCha20. Two steganography techniques, LSB and Spread Spectrum, are used to encrypt and embed ciphertext into five different images. The security of the created images is evaluated using metrics such as PSNR, runtime, MSE, histogram, and information entropy. Our analysis reveals that DES is less effective than AES and ChaCha20 for encryption. Furthermore, Spread Spectrum outperforms LSB in terms of security, although LSB produces better stego-image quality. Combining different steganography and encryption techniques enhances the capacity to send photos with a high level of security and robustness. This study provides insightful knowledge on the effective use of steganography and encryption for secure image transmission in various industries, including military and healthcare imaging applications