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In this paper, we analyze the security of the RSA public key cryptosystem where multiple encryption and decryption exponents are considered with the same RSA modulus N. We consider , where p, q are of the same bit size, i.e., . We show that if n many decryption exponents are used with the same N, then RSA is insecure when , for all i, and . Our result improves the bound of Howgrave-Graham and Seifert (CQRE 1999) for and also generalizes our recent work for (IPL 2010).
Journal | Data powered by TypesetInformation Processing Letters |
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Publisher | Data powered by TypesetElsevier BV |
Open Access | No |