Cryptology ePrint Archive: Report 2012/666

Available versions in chronological order

20121128:172218 (posted 28-Nov-2012 17:22:18 UTC): Estimating the $\phi(n)$ of Upper/Lower Bound in its RSA Cryptosystem; Rock C. Liu and Zhiwi Yeh
20130227:123235 (posted 27-Feb-2013 12:32:35 UTC): Estimating the Φ(n) of Upper/Lower Bound in its RSA Cryptosystem; Chenglian Liu and Ziwei Ye

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