In these cryptosystems, Euler totient functions play an important role.
在这些密码体制中，欧拉函数起着重要作用。
2
This paper lists some important and interesting properties of the Euter totient functions, which have the potential use in the design and analysis of cryptosystems.
本文给出了欧拉函数的一些重要而有趣的性质，这些性质可对密码的设计与分析起指导作用。
3
If, on the other hand, you want the value of the totient for some large number for which you have the factorization, pass the argument as sequence of (prime, exponent) pairs.