The training manual reflects the problems of modern cryptography, a brief description of modern cryptosystems with a secret key and the specifics of tasks solved using ciphers with an open key is considered. Information from the theory of numbers necessary to understand all the considered algorithms and protocols of two key cryptography is given. Open encryption systems, open distribution of keys and electronic digital signature (EDS) are presented in detail, based on the complexity of factorization tasks and discrete logarithmication. The features of the schemes of the blind signatures, the protocols with zero disclosure and the threshold schemes of separation of the secretion are discussed. The concept of hash functions, the requirements for them and their use in EDS systems are revealed. Secret key management issues, open keys infrastructure and the formation of digital certificates are considered. The tasks and examples of practical tasks are given.
For teachers, students and graduate students of engineering and technical universities.
Author
Moldovan Nikolai Andreevich, Moldovan Alexander Andreevich
Editor
Kondukova Ekaterina
Publisher
BHV, 2014
Genre
Informatics
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