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Shrinking Generator
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Geliefert zwischen Mo., 24.11.2025 und Di., 25.11.2025
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High Quality Content by WIKIPEDIA articles! In cryptography, the shrinking generator is a form of pseudorandom number generator intended to be used in a stream cipher. It was published in Crypto 1993 by Don Coppersmith, Hugo Krawczyk, and Yishay Mansour. The shrinking generator uses two linear feedback shift registers. One, called the A sequence, generates output bits, while the other, called the S sequence, controls their output. Both A and S are clocked; if the S bit is 1, then the A bit is output; if the S bit is 0, the A bit is discarded, nothing is output, and we clock the registers again. This has the disadvantage that the generator's output rate varies irregularly, and in a way that hints at the state of S; this problem can be overcome by buffering the output. Despite this simplicity, the shrinking generator has remained remarkably resistant to cryptanalysis: there are currently no known attacks better than exhaustive search when the feedback polynomials are secret. An interesting variant is the self-shrinking generator.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786130349981
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Physik & Astronomie
- EAN 9786130349981
- Format Fachbuch
- Titel Shrinking Generator
- Herausgeber Betascript Publishing
- Anzahl Seiten 92
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