Concurrent Error Detection in Block Ciphers

  • Authors:
  • Santiago Fernández-Gómez;J. J. Rodríguez-Andina;E. Mandado

  • Affiliations:
  • -;-;-

  • Venue:
  • ITC '00 Proceedings of the 2000 IEEE International Test Conference
  • Year:
  • 2000

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Abstract

Today, encryption is widely used to incorporateprivacy in data communications. Hardwareimplementations of encryption algorithms are fastenough to cope with the high throughput required inmodern transmission channels. However, faults mayoccur in such circuits that can cause errors inencrypted text. A new technique is proposed toconcurrently detect errors in block ciphers. Itintroduces very low area overhead in the system. Inaddition, a new encoding scheme is presented thathas higher detection capabilities than other commonerror detection codes, when applied to encryptionsystems. Experiments conducted with widely usedencryption algorithms (DES, RC5, IDEA andSKIPJACK) demonstrate the advantages of theproposed technique.