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arXiv · 2507.14197

DM-RSA: An Extension of RSA with Dual Modulus

Andriamifidisoa Ramamonjy·Rufine Marius Lalasoa
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Abstract

We introduce DM-RSA (Dual Modulus RSA), a variant of the RSA cryptosystem that employs two distinct moduli symmetrically to enhance security. By leveraging the Chinese Remainder Theorem (CRT) for decryption, DM-RSA provides increased robustness against side-channel attacks while preserving the efficiency of classical RSA. This approach improves resistance to partial compromise of a modulus and integrates easily into existing infrastructures.

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Andriamifidisoa Ramamonjy, Rufine Marius Lalasoa. 2025-07-14. DM-RSA: An Extension of RSA with Dual Modulus. https://arxiv.org/abs/2507.14197

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