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Cryptographic Boolean Functions

  • Full or part time
  • Application Deadline
    Sunday, March 01, 2020
  • Self-Funded PhD Students Only
    Self-Funded PhD Students Only

Project Description

Boolean functions are used as components in the design of many symmetric ciphers (for example S-boxes for block ciphers like AES, or the non-linear component of stream ciphers). These functions have to satisfy certain properties in order to resist known cryptographic attacks. In this project we consider a family of such properties, called PN (Perfect non-linear), APN (almost perfect non-linear) and GAPN (generalised APN).

There are some well-known functions with these properties, but recently new methods of constructing such functions have been proposed, involving a combination of theoretical results and computer search. We aim to further develop these methods and obtain new such functions.

How to apply

All applications are made online, please select the school/department name under the programme name section and include the quote reference number.

Entry Requirements

A relevant Master's degree and / or experience in one or more of the following will be an advantage: network security, mathematics, theoretical computer science.

Funding Notes

This is an open call for candidates who are sponsored or who have their own funding. If you do not have funding, you may still apply, however Institutional funding is not guaranteed. Outstanding candidates (UK/EU/International) without funding will be considered for funding opportunities which may become available in the School.

UK/EU Fee band: Research Band 1 Classroom Based (£4,195)
International Fee band: Research Band 1 Classroom Based (£20,500)

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