Cryptography and Steganography Based Hiding Technique for Efficient Data Protection

A more reliable technique for protecting data transfer has in fact been required due to the rise inattacks that have been documented during electronic information exchange between the source and theintended destination. Two well-known and often used methods for manipulating data to encrypt or concealits presence are cryptography and steganography. These two methods aim to prevent unwanted access toinformation while maintaining its availability, confidentiality, and integrity. However, attackers now havean easier time hiding concealed data because to the advancements in steganalysis and image processingtechniques. Researchers have suggested a number of countermeasures to address this problem, such ascombining encryption with steganography. The Least Significant Bit (LSB) method, the Rivest–Shamir–Adleman (RSA) asymmetric key encryption scheme, and the Advanced Encryption Standard (AES)symmetric key encryption scheme—which uses the Diffie–Hellman key exchange algorithm—are all usedin this research to implement the steganography technique. Next, the effectiveness of these two approachesis assessed in terms of how well they can protect and hide sensitive information as well as how quickly itcan be hidden. The created method, which combines the Diffie-Hellman key exchange algorithm withAES, outperforms RSA as the encryption algorithm in terms of speed and data concealing capacity,according to the results.