A Novel Encrypted Data Hiding and Image Encryption for Authentication Based Communication Framework

Secure data sharing is crucial for many real time applications such as law enforcement agencies, military conversations and medical data sharing, etc., However, since sensitive information might be intercepted or leaked, sharing it presents a serious security risk. Here, a unique strategy combining steganography and cryptography approaches is proposed to overcome this difficulty. By encrypting data using AES encryption and concealing it behind an image using Modified Least Significant Bit (LSB) and picture encryption using Elliptic Curve Cryptography (ECC), the suggested method seeks to improve data transmission security. AES encryption, a well-known symmetric encryption method renowned for its efficiency and resilience, is used in the first layer of security. This guarantees that the plain-text communication, which is safeguarded by a powerful encryption key, stays private. By employing a modified Least Significant Bit (LSB) technique to incorporate the AES-encrypted text inside a cover picture, you may go one step further. The inclusion of crucial information is concealed within the seemingly innocent image thanks to this secret embedding, even in the event that the communication is intercepted. ECC encryption, a potent asymmetric encryption technique, adds a second layer of protection by preserving the validity and integrity of the cover picture itself. By utilizing the mathematical characteristics of elliptic curves, ECC encryption generates safe digital signatures for the picture that are verifiable and tamper-evident. By integrating these two techniques, proposed approach ensures end-to-end security for sensitive text messages. The use of AES guarantees the confidentiality of the message, while the modified LSB embedding conceals it within an image. Moreover, ECC encryption serves as a resilient method to authenticate the integrity of the image, guaranteeing that it remains unaltered throughout its transmission.