作为一个伴侣的经典书Vaudenay介绍密码学

代码说明：

As a companion book of Vaudenay s A Classical Introduction to Cryptography, this exercise book contains a carefully revised version of most of the material used in teaching by the authors or given as examinations to the undergraduate students of the Cryptography and Security lecture at EPFL from 2000 to mid-2005