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Codici correttori : Un'introduzione = Correction codes : An introduction
The objective of the theory of desire is that of studying the method to communicate in an affidable way, purely in the presence of disturbance. This is if it is an indispensable instrument for the realization of digital communication systems and, pertanto, the suo studio riveste notevole of practical interest. In this testo testo, destined to studenti dei corsi di laurea di primo (II / III anno) and secondo livello in mathematics, physics or engineering, I come to introduce the famiglie classiche di codici correttori di errore and if it shows how this possano essere concretely applicable per I will communicate; If I present inoltre anche alcune family of covetousness of più recent scoperta, currently oggetto di intense attività di ricerca.
Codici cifrati: Arne Beurling e la crittografia nella II guerra mondiale = Cipher codes : Arne Beurling and cryptography in world war II
The story of the German codebreaking is told in detail for the first time and has all the makings of a thriller, but with elements that make it an excellent introduction to the field of cryptography, as well as a vibrant and human portrait of the society of the time: a desperate wartime situation, political and espionage intrigue, the sometimes incomprehensible yet always fascinating genius of the main architect of its success — mathematician Arne Beurling—the difficulties and tricks of the trade, but also the systematic and obscure work of a crowd of codebreakers who treat their situation as if it were a normal job. The author, Bengt Beckman, was for years, after the war, head of the cryptanalysis department of the Swedish intelligence agency.
Aritmetica, crittografia e codici = Arithmetic, cryptography and codes
The basic techniques of algebra and number theory useful in recent applications to cryptography and codes are developed, with the aim of being elementary and self-sufficient. The emphasis is on computational problems. This part of the volume can be useful as a textbook for a first course in algebra for mathematicians, computer scientists or engineers. Important applications of algebra and geometry to cryptography and codes are then illustrated. Both, cryptography and codes have significant applications in daily life which are illustrated here. Cryptography is developed in detail in much of its classic and current aspects, and both private and public key cryptography are developed. Cryptography with the use of elliptic curves on finite fields is also illustrated. A chapter introducing the subject is dedicated to linear codes.
