Cryptography, Information Theory, and Error-Correction: A - download pdf or read online

By Aiden Bruen, Mario A. Forcinito

ISBN-10: 1118031385

ISBN-13: 9781118031384

Publish yr note: First released December thirty first 2004 via Wiley-Interscience
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Discover the 1st unified therapy of today's so much crucial info technologies-- Compressing, Encrypting, and Encoding

With identification robbery, cybercrime, and electronic dossier sharing proliferating in today's stressed international, supplying secure and actual info transfers has turn into a paramount problem. the problems and difficulties raised during this recreation are encompassed inside of 3 disciplines: cryptography, info conception, and error-correction. As know-how keeps to enhance, those fields have converged at a realistic point, expanding the necessity for a unified remedy of those 3 cornerstones of the data age.

Stressing the interconnections of the disciplines, Cryptography, details conception, and Error-Correction deals an entire, but available account of the applied sciences shaping the twenty first century. This e-book includes the main up to date, designated, and balanced remedy to be had on those topics. The authors draw on their event either within the lecture room and in undefined, giving the book's fabric and presentation a special real-world orientation.

With its reader-friendly sort and interdisciplinary emphasis, Cryptography, details thought, and Error-Correction serves as either an admirable educating textual content and a device for self-learning. The bankruptcy constitution allows an individual with a highschool arithmetic schooling to achieve a robust conceptual realizing, and offers higher-level scholars with extra mathematically complex issues. The authors sincerely map out paths during the ebook for readers of all degrees to maximise their learning.

This book:
• is acceptable for classes in cryptography, info conception, or error-correction in addition to classes discussing all 3 areas
• offers over three hundred instance issues of solutions
• offers new and fascinating algorithms followed via industry
• Discusses capability purposes in mobile biology
• information a brand new characterization of excellent secrecy
• gains in-depth insurance of linear suggestions shift registers (LFSR), a staple of contemporary computing
• Follows a layered method of facilitate dialogue, with summaries by way of extra certain explanations
• presents a brand new viewpoint at the RSA algorithm

Cryptography, details conception, and Error-Correction is a wonderful in-depth textual content for either graduate and undergraduate scholars of arithmetic, laptop technological know-how, and engineering. it's also an authoritative evaluate for IT execs, statisticians, mathematicians, laptop scientists, electric engineers, marketers, and the commonly curious.

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Extra resources for Cryptography, Information Theory, and Error-Correction: A Handbook for the 21st Century

Example text

If we were unable to decipher the text with a keyword length of 2 or 4, we would then try with the next highest number of coincidences, which occurs for displacement 3. Finding the Keyword Now that know how to find n, we examine how to find the keyword itself. Suppose, for example, that our key-length is 7. Consider the plain text character in the 1 s t , 8 t h , 1 5 i h , . . e. characters at a distance of 7 spaces). If a particular letter occurs in positions 1 and 8, the cipher text letters in positions 1 and 8 will be the same (because we use the same key letter to encipher both characters).

The most prevalent is the atbash technique. Here the first and last, second and second last, (and so on) letters of the Hebrew alphabet are interchanged. An example can be found in the Hebrew Bible. Kahn ([Kah67] p. 77) cites Jeremiah 25:26 and Jeremiah 51:41, where the form SHESHACH appears in place of Babel (Babylon). " To quote: How is SHESHACH taken! And the praise of the whole earth seized! How is Babylon become an astonishment Among the nations! Through Aramaic paraphrases of the Bible, it is clear that SHESHACH is the same as Babel.

The beginning sentence is very revealing. It reads as follows: The problems of cryptography and secrecy systems furnish an interesting application of communication theory. Indeed, this is precisely the point of view that inspired the authors of this book! We believe it is unrealistic to separate the study of cryptography from the study of communication theory embodying error correction and information theory. To illustrate this, Shannon points out that just as in error correction, where the receiver tries to decode the message over a noisy channel, so also in cryptography a receiver (this 12 CHAPTER 1.

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Cryptography, Information Theory, and Error-Correction: A Handbook for the 21st Century by Aiden Bruen, Mario A. Forcinito


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