使用的更公用安全性系统之一是PKI(公用密钥基础)，一种用于PDA和智能电话安全性的加密技术。

One of the more common security systems used is PKI (Public Key Infrastructure), an encryption used for PDA and smart-phone security.

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虽然听起来这并不是什么了不起的事，但分解并找到一个离散对数的困难形成了大部分公用密钥密码学系统的基础，如果不是全部的话。

While this doesn't sound like a big deal, the difficulty of factoring and finding a discrete logarithm forms the basis of most if not all public-key cryptography systems.

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