Key derivation function based on stream ciphers

Chuah, Chai Wen (2014) Key derivation function based on stream ciphers. PhD thesis, Queensland University of Technology.


A key derivation function (KDF) is a function that transforms secret non-uniformly random source material together with some public strings into one or more cryptographic keys. These cryptographic keys are used with a cryptographic algorithm for protecting electronic data during both transmission over insecure channels and storage. In this thesis, we propose a new method for constructing a generic stream cipher based key derivation function. We show that our proposed key derivation function based on stream ciphers is secure if the under-lying stream cipher is secure. We simulate instances of this stream cipher based key derivation function using three eStream nalist: Trivium, Sosemanuk and Rabbit. The simulation results show these stream cipher based key derivation functions offer efficiency advantages over the more commonly used key derivation functions based on block ciphers and hash functions.

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117 since deposited on 27 May 2014
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ID Code: 71025
Item Type: QUT Thesis (PhD)
Supervisor: Dawson, Ed, Gonzalez Nieto, Juan, & Simpson, Leonie
Keywords: key derivation functions, cryptographic keys, security frameworks, stream ciphers, keystream generators, hash functions, block ciphers
Divisions: Current > Schools > School of Electrical Engineering & Computer Science
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Institution: Queensland University of Technology
Deposited On: 27 May 2014 01:50
Last Modified: 09 Sep 2015 06:00

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