Correctness of Extended RSA Public Key Cryptosystem

Fuente: arXiv
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Main Authors: Chang, Dar-jen, Gautam, Suranjan
Format: Preprint
Published: 2025
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author Chang, Dar-jen
Gautam, Suranjan
author_facet Chang, Dar-jen
Gautam, Suranjan
contents This paper proposes an alternative approach to formally establishing the correctness of the RSA public key cryptosystem. The methodology presented herein deviates slightly from conventional proofs found in existing literature. Specifically, this study explores the conditions under which the choice of the positive integer N, a fundamental component of RSA, can be extended beyond the standard selection criteria. We derive explicit conditions that determine when certain values of N are valid for the encryption scheme and explain why others may fail to satisfy the correctness requirements. The scope of this paper is limited to the mathematical proof of correctness for RSA-like schemes, deliberately omitting issues related to the cryptographic security of RSA.
format Preprint
id arxiv_https___arxiv_org_abs_2512_24531
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Correctness of Extended RSA Public Key Cryptosystem
Chang, Dar-jen
Gautam, Suranjan
Cryptography and Security
Number Theory
94A60
This paper proposes an alternative approach to formally establishing the correctness of the RSA public key cryptosystem. The methodology presented herein deviates slightly from conventional proofs found in existing literature. Specifically, this study explores the conditions under which the choice of the positive integer N, a fundamental component of RSA, can be extended beyond the standard selection criteria. We derive explicit conditions that determine when certain values of N are valid for the encryption scheme and explain why others may fail to satisfy the correctness requirements. The scope of this paper is limited to the mathematical proof of correctness for RSA-like schemes, deliberately omitting issues related to the cryptographic security of RSA.
title Correctness of Extended RSA Public Key Cryptosystem
topic Cryptography and Security
Number Theory
94A60
url https://arxiv.org/abs/2512.24531