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Factorial coding with several checksums

Factorial coding with several checksums

Abstract

Предложены и подробно рассмотрены методы факториального кодирования снесколькими контрольными суммами, которые направлены на сокращение времениформирования кодового слова и объем используемой при этом памяти за счетпараллельной обработки поступающих на вход кодера и декодера данных прикомплексном решении задач контроля целостности информации и еекриптографической защиты. Метод систематического факториального кодирования снесколькими контрольными суммами использует в качестве проверочной частикодового слова конкатенацию нескольких проверочных частей, вычисленных поотдельным частям информационного блока. Несистематическое кодирование снесколькими контрольными суммами предусматривает замену информационнойпоследовательности на конкатенацию нескольких перестановок, вычисленных поразличным блокам, на которые разбивается информационная последовательностьсимволов. Для предложенных методов кодирования изучены зависимости оценоквероятности необнаруженной ошибки и энергетического выигрыша от длиныинформационного вектора на входе кодера. Произведено сравнение показателейобнаруживающей способности для факториальных кодов с несколькими контрольнымисуммами и других помехоустойчивых кодов.

The work offers and discusses in detail the methods of factorial coding with several checksums. These methods are used for solving complex problems of data integrity and cryptographic protection, and are aimed at reducing the time of code word formation and the amount of used memory due to parallel processing of data that comes to the encoder and decoder input. The method of systematic factorial coding with several checksums uses a concatenation of several check sequences calculated by different parts of information block as a code word check sequence. Non-systematic factorial coding with several checksums replaces the information sequence with a concatenation of several permutations calculated for different blocks into which a sequence of information symbols is divided. For the proposed coding methods the dependences of undetected error and energy gain probability assessments from the length of encoder input information vector are studied. The comparison of error detecting ability metrics is done for the factorial codes with several checksums and other error detection codes.

Keywords

factorial code; permutation; information integrity control; cryptography; error detection coding; transmission reliability; cryptographic strength., факториальный код; перестановка; контроль целостности информации; криптозащита; помехоустойчивое кодирование; достоверность передачи; стойкость

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold