Saliency-Aware Steganography with a Hybrid AES and RSA with LSB Embedding
Published: 2026/06/19
Abstract
Image steganography hides secret data within digital media, such as images, without detection. Traditional stenographic methods struggle with three major problems including limited data capacity, susceptibility to attacks, and compromised visual quality. In this work, we propose a new framework, based on the BossBase dataset, that combines hybrid encryption with saliency-based adaptive embedding to select the most effective regions for data concealment in cover images. We encrypt the secret image in the first step using a hybrid encryption approach, Advanced Encryption Standard (AES) and Rivest-Shamir-Adleman (RSA) algorithm, where AES is first used to encrypt the secret image and the AES key is then RSA-encrypted for dual layer encryption. Bitwise triplication technique and majority voting are incorporated to protect the encrypted key from bit errors. Then, we generate a hybrid histogram equalization (HE) map from the cover image's saliency map to embed the secret image. During the embedding process, we use the Least Significant Bit (LSB) technique, which selects areas in the hybrid map derived from the cover image with low visual sensitivity for embedding data. The system evaluation includes multiple performance metrics, including Peak-to-Signal Ratio (PSNR), Structural Similarity Index Measure (SSIM), Mean Squared Error (MSE), Bit Error Rate (BER), payload capacity, and execution time. The experimental results show excellent imperceptibility for all secret image sizes (64×64, 128×128, 192×192) with PSNR values above 58 dB and SSIM values above 0. 9995.The system succeeded in reconstructing completely imperceptible content with BER = 0. The reconstructed contents had infinite PSNR and SSIM = 1.0000 against any image Perturbations) including noise, blurring, compression, and cropping (. All the conventional steganalysis and the deep-learning–based steganalysis (RS, CRM, Xu-Net, Ye-Net) failed to detect the embedded signals.
Keywords
Saliency-Aware Steganography with a Hybrid AES and RSA with LSB Embedding is licensed under CC BY 4.0
References
- Ji, P., Zhang, Y., & Lv, Z. (2025). Edge-guided dual-stream U-Net for secure image steganography. Applied Sciences, 15(8), 4413.
- Wang, M. (2025). AttnEdge: An enhanced edge detection method based on self-attention mechanism. In Proceedings of the Fourth International Conference on Computer Vision, Application, and Algorithm (CVAA) (Vol. 13486, pp. 438–446). SPIE.
- Sanjalawe, Y., Al-E’mari, S., Fraihat, S., Abualhaj, M., & Alzubi, E. (2025). A deep learning-driven multi-layered steganographic approach for enhanced data security. Scientific Reports, 15(1), 4761.
- Verma, A. K., Sarkar, T., et al. (2024). Utilizing imaging steganographic improvement using LSB & image decoder. In Proceedings of IC3SE (pp. 144–150). IEEE.
- Panigrahi, R., & Padhy, N. (2025). An effective steganographic technique for hiding the image data using the LSB technique. Cyber Security and Applications, 3, 100069.
- Yusuf, H. S., & Hagras, H. (2020). High payload image steganography method using fuzzy logic and edge detection. International Journal of Computer Science Trends and Technology, 8(4), 123–134.
- Duan, X., Liu, N., Gou, M., Wang, W., & Qin, C. (2020). SteganoCNN: Image steganography with generalization ability based on convolutional neural network. Entropy, 22(10), 1140.
- Moumen, A., & Sissaoui, H. (2017). Images encryption method using steganographic LSB method, AES and RSA algorithm. Nonlinear Engineering, 6(1).
- Domathoti, M., Ayyalasomayajula, S. K., Karri, V. K., & M, L. (2025). Hiding data using efficient combination of ECC and compression steganography techniques. International Journal of Scientific Research in Engineering and Management, 9(3), 1–9.
- Barnwal, A., Sah, A., R, S., Khera, N. U., Srivastav, R., & Sivasankar, A. (2024). SecretPixel: Advanced steganography with seeded random embedding and AES-RSA encryption. In Proceedings of IEEE INSPECT (pp. 1–6). IEEE.
- Badhan, A., & Malhi, S. S. (2024). A review on hybrid cryptography approach with steganography. In Proceedings of IEEE IEMECON (pp. 1–7). IEEE.
- Zhao, J., Wang, S., & Sun, F. (2025). Saliency map construction for adversarial image steganography. Chinese Journal of Electronics, 34(3), 816–827.
- Shmueli, R., Mishra, D., Shmueli, T., & Hadar, O. (2024). A novel technique for image steganography based on maximum energy seam. Multimedia Tools and Applications, 83(28), 70907–70920.
- Kumar, A., Singla, P., & Yadav, A. (2024). StegaVision: Enhancing steganography with attention mechanism. arXiv preprint arXiv:2411.05838.
- Bayar, B., & Stamm, M. C. (2016). A deep learning approach to universal image manipulation detection using a new convolutional layer. In Proceedings of the ACM Workshop on Information Hiding and Multimedia Security (pp. 5–10).
- Ray, B., Mukhopadhyay, S., Hossain, S., Ghosal, S. K., & Sarkar, R. (2021). Image steganography using deep learning based edge detection. Multimedia Tools and Applications, 80(24), 33475–33503.
- Setiadi, D. R. I. M., Rustad, S., Andono, P. N., & Shidik, G. F. (2024). Graded fuzzy edge detection for imperceptibility optimization of image steganography. The Imaging Science Journal, 72(6), 693–705.
- Wang, M. (2025). AttnEdge: An enhanced edge detection method based on self-attention mechanism. In Proceedings of CVAA (pp. 438–446). SPIE.
- Bai, J., Chang, C.-C., Nguyen, T.-S., Zhu, C., & Liu, Y. (2017). A high payload steganographic algorithm based on edge detection. Displays, 46, 42–51.
- Sukumar, A., Subramaniyaswamy, V., Ravi, L., Vijayakumar, V., & Indragandhi, V. (2021). Robust image steganography approach based on RIWT-Laplacian pyramid and histogram shifting using deep learning. Multimedia Systems, 27(4), 651–666.
- Wang, Y., Tang, M., & Wang, Z. (2020). High-capacity adaptive steganography based on LSB and Hamming code. Optik, 213, 164685.
- Alattar, A. (2004). Reversible watermark using the difference expansion of a generalized integer transform. IEEE Transactions on Image Processing, 13(8), 1147–1156.
- Setiadi, D. R. I. M., et al. (2023). Digital image steganography survey and investigation. Signal Processing, 206, 108908.
