Home > References & Encyclopedias > Achterbahn: Achterbahnhersteller, Achterbahntechnik, Achterbahntyp, Holzachterbahn, Stahlachterbahn, Liste Von Stahlachterbahnen
Achterbahn: Achterbahnhersteller, Achterbahntechnik, Achterbahntyp, Holzachterbahn, Stahlachterbahn, Liste Von Stahlachterbahnen

Achterbahn: Achterbahnhersteller, Achterbahntechnik, Achterbahntyp, Holzachterbahn, Stahlachterbahn, Liste Von Stahlachterbahnen

          
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About the Book

Editorial Reviews - Achterbahn From the Publisher Kapitel: Liste Von Stahlachterbahnen, Liste Von Holzachterbahnen, Liste Von Achterbahnfachbegriffen, Richard Rodriguez, Nolimits, European Coaster Club, Onridevideo. Aus Wikipedia. Nicht dargestellt. Auszug: In cryptography, Achterbahn is the name of a synchronous stream cipher algorithm submitted to the eSTREAM Project of the eCRYPT network. In the final specification the cipher is called ACHTERBAHN-128/80, because it supports the key lengths of 80 bits and 128 bits, respectively . Achterbahn was developed by Berndt Gammel, Rainer Göttfert and Oliver Kniffler. Achterbahn means eight-liner (in German), which indicates that the cipher can encrypt eight bit streams in parallel. The parameters of the cipher are given in the following table: ACHTERBAHN-128 is downward compatible and can produce the same keystream as ACHTERBAHN-80 if so desired. The keystream generator of ACHTERBAHN-128/80 is based on the design principle of the nonlinear combination generator, however it deploys primitive nonlinear feedback shift registers (NLFSR) instead of linear ones (LFSR). There are no known cryptanalytic attacks against ACHTERBAHN-128/80 for the tabulated parameters that are faster than brute force attack. Recent analysis showed that attacks are possible if larger frame (packet) lengths are used in a communication protocol . A recommendation for a maximum frame length of 2 bit is given in Ref. . This value does however not imply practical limitations. The ACHTERBAHN-128/80 stream cipher is optimized for hardware applications with restricted resources, such as limited gate count and power consumption. An implementation of ACHTERBAHN-80 has a design size of only 2188 gate equivalents (Nand-GE) in a standard CMOS technology and delivers a throughput of up to 400 Megabit/s. This makes it suitable for RFID tags. A high-speed implementation with a throughput of 8 Gigabit/s has a design size of 8651 Nand-GE, cf. . ...ht


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Product Details
  • ISBN-13: 9781158755066
  • Publisher: Books LLC, Wiki Series
  • Binding: Paperback
  • Language: German
  • Returnable: N
  • Spine Width: 11.75 mm
  • Width: 186 mm
  • ISBN-10: 1158755066
  • Publisher Date: 30 Aug 2011
  • Height: 242.25 mm
  • No of Pages: 222
  • Series Title: German
  • Weight: 404.06 gr


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