Codes An Introduction to Information Communication and Cryptography
Replacing symbolic information, such as a sequence of bits or a message written in a natural language, by another message using different symbols. The properties of arithmetic coding. The problem of reliable communication. Coding natural languages.
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The problem of protecting information by transforming it, precluding its reading an outsider. Cryptographic methods of data protection - special encryption, encoding or a conversion. Architecture, devices and addresses applications of cryptography.
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