Abstract: In modern digital communication systems, ensuring the secure transmission of sensitive data is a major challenge due to increasing cyber threats and unauthorized access. This paper proposes a secure data protection framework that integrates One-Time Password (OTP) generation with an RSA-based key exchange scheme. In the proposed system, whenever a data owner initiates a data-sharing process, a unique OTP is dynamically generated to authenticate the user. The generated OTP is then encrypted using the RSA encryption algorithm before transmission. The RSA key exchange mechanism ensures that only the intended recipient possessing the correct private key can decrypt the OTP and access the shared data. This approach provides a dual layer of security by combining dynamic authentication with strong asymmetric encryption. As a result, the system significantly enhances data confidentiality, integrity, and protection against interception or unauthorized access during transmission. The proposed scheme can be effectively applied in secure communication systems, cloud data sharing platforms, and authentication-based applications.

Keywords: One-Time Password (OTP), RSA Encryption, Key Exchange, Data Security, Secure Communication.

Downloads: | DOI: 10.17148/IARJSET.2026.13380