Читать книгу Security Engineering - Ross Anderson - Страница 159

Now that we've tidied up the definitions, we'll look under the hood to see how they can be implemented in practice. While most explanations are geared towards graduate mathematics students, the presentation I'll give here is based on one I developed over the years with computer science undergraduates, to help the non-specialist grasp the essentials. In fact, even at the research level, most of cryptography is as much computer science as mathematics: modern attacks on ciphers are put together from guessing bits, searching for patterns, sorting possible results and so on, and require ingenuity and persistence rather than anything particularly highbrow.