Forum PHP 2017
La parole est aux speakers : Chris Riley
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La conférence
The secrets of CryptographyAlice and Bob have secrets they want to talk about without Eve being able to listen in. Worse yet, the mischievous Mallory delights in changing messages sent between parties. In such a hostile environment how can Alice talk to Bob without their messages being overheard and how can she be sure that it was Bob that sent the message in the first place? This talk will take a brief look at historic codes and ciphers before taking a look at modern day Cryptography. If you want to be able to know the difference between a block cipher and a stream cipher or get a glimpse into the mathematics behind public key Cryptography this talk is for you. |
What’s your background in cryptography? how did you discover it and why did you decide to study it?
I’ve always been fascinated by cryptography and cryptanalysis and despite having studied it during my university course, it’s more of an occasional hobby than something I do professionally. Although historic ciphers can be broken easily by anyone who’s good at solving puzzles, modern day cryptography requires a heavy background in maths which makes it harder to get into and why it remains mostly a hobby for me.
It obviously isn’t required that anyone wanting to use cryptography needs a PHD in maths though, it is possible to study and understand the algorithms that are used even if you don’t have the ability to create your own and break other peoples. A basic understanding of the underlying algorithms and ways of breaking them can help you avoid issues when using them and allow you to have a bit of fun when something a bit easier does come along such as my analysis of hashids.