Use this URL to cite or link to this record in EThOS:
Title: Applications of search techniques to cryptanalysis and the construction of cipher components
Author: McLaughlin, James
ISNI:       0000 0004 2733 0085
Awarding Body: University of York
Current Institution: University of York
Date of Award: 2012
Availability of Full Text:
Access from EThOS:
Access from Institution:
In this dissertation, we investigate the ways in which search techniques, and in particular metaheuristic search techniques, can be used in cryptology. We address the design of simple cryptographic components (Boolean functions), before moving on to more complex entities (S-boxes). The emphasis then shifts from the construction of cryptographic artefacts to the related area of cryptanalysis, in which we first derive non-linear approximations to S-boxes more powerful than the existing linear approximations, and then exploit these in cryptanalytic attacks against the ciphers DES and Serpent.
Supervisor: Clark, John Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available