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Dr Leonie Simpson

Science and Engineering Faculty,
Electrical Engineering, Computer Science,
Information Security

Personal

Name
Dr Leonie Simpson
Position(s)
Senior Lecturer
Science and Engineering Faculty,
Electrical Engineering, Computer Science,
Information Security
Discipline *
Data Format
Phone
+61 7 3138 2126
Fax
+61 7 3138 1214
Email
Location
View location details (QUT staff and student access only)
Qualifications

PhD (Queensland University of Technology), BAppSc(Hons) (Queensland University of Technology), BA (University of Queensland), DipTeach(Secondary) (Brisbane College of Adv. Ed.)

Keywords

Information Security, Cryptography, Symmetric Encryption, Stream Ciphers, Authenticated Encryption, Cryptanalysis, Commnications security

* Field of Research code, Australian and New Zealand Standard Research Classification (ANZSRC), 2008

Biography

Research theme: Information and Security

Research discipline: Computer Science

Research area

  • Authenticated encryption

Investigation of methods for providing both confidentiality and authentication of messages in a very efficient manner. For many applications, processing to provide security services needs to be fast, as the transmission is in real time (for example, mobile phone communications). However, small devices impose constraints in terms of the implementation footprint and memory and power availability.

  • Initialisation of stream ciphers

Stream Ciphers are often used for frame-based communications. Examples include mobile phone communications and internet transmissions. The same secret key is used with different known initial vectors (for example, frame number) to produce different initial states, and hence different keystreams. The process of forming different initial states from the same secret information requires careful consideration to avoid revealing the secret key.

This information has been contributed by Dr Leonie Simpson.

Teaching

Teaching discipline: Computer Science

This information has been contributed by Dr Leonie Simpson.

Publications


For more publications by this staff member, visit QUT ePrints, the University's research repository.

Research projects

Grants and projects (Category 1: Australian Competitive Grants only)

Title
Efficient and Secure Word-Based Stream Ciphers for Wireless Communications
Primary fund type
CAT 1 - Australian Competitive Grant
Project ID
DP0450920
Start year
2004
Keywords
Wireless Communications; Synchronous; Boolean Functions; Stream Ciphers; Encryption; Word Based

Supervision