An Effective and enhanced RSA based Public Key Encryption Scheme (XRSA) (original) (raw)

International Journal of Information Technology

Cryptography is the mechanism of providing significant security services such as confidentiality, authentication, and integrity. These services are essentially more important in the current era, where lots of IoT devices are generating data and being stored in the cloud environment. Public key cryptography is highly effective in achieving confidentiality and authentication services. One of the popular public-key cryptography schemes is the RSA algorithm, which besides other concepts uses two very large prime integers. In the proposed study, the authors enhanced the RSA algorithm in the context of generation of a more complex key pair, i.e., public and private key, so that adversary should never be able to determine the private key using public-key. The proposed scheme uses four random large prime numbers to generate public–private key pairs and applies XOR operation along with the more complex intermediate process in key-generation encryption and decryption phases to achieve higher algorithm complexity, which would require more time to break the proposed cipher and would make it extremely difficult for third-parties to attack, hence boosting security. The method is also compared with other RSA-based algorithms to demonstrate the potency of the proposed algorithm in terms of enhanced performance and security.

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