Abstract :

Secure Data Transmission Has Become A Critical Requirement In Modern Communication Systems Due To The Increasing Risks Of Cyberattacks, Data Breaches, And Unauthorized Access. Traditional Security Mechanisms Relying On Single-layer Cryptography Are Often Insufficient Against Advanced Threats. This Research Presents A Hybrid Security Framework That Combines Cryptography And Steganography To Ensure Strong Confidentiality, Integrity, And Covert Communication. In The Proposed Model, The Sensitive Data Is First Encrypted Using A Hybrid Cryptographic Approach, Integrating The Strengths Of Symmetric Algorithms For Speed And Asymmetric Algorithms For Secure Key Exchange. The Encrypted Data Is Then Embedded Into A Digital Medium—such As An Image, Audio, Or Text—using Advanced Steganographic Techniques, Making The Presence Of The Hidden Data Virtually Undetectable. This Duallayer Protection Ensures That Even If The Stego File Is Intercepted, The Underlying Encrypted Message Remains Secure. Experimental Results Highlight The System’s High Resistance To Cryptographic Attacks, Steganalysis, And Unauthorized Extraction, While Maintaining Minimal Distortion In The Cover Medium. The Hybrid Approach Enhances The Overall Security, Reliability, And Stealth Of Data Transmission, Making It Suitable For Military Communication, Secure Banking, And Privacy-critical Applications. Keywords: Hybrid Cryptography, Steganography, Secure Data Transmission, Encryption, Data Hiding, Confidentiality, Covert Communication.

Published:

18-12-2025

Issue:

Vol. 25 No. 12 (2025)

Page Nos:

373-383

Section:

Articles

License:

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

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