Murdoch University Research Repository

Welcome to the Murdoch University Research Repository

The Murdoch University Research Repository is an open access digital collection of research
created by Murdoch University staff, researchers and postgraduate students.

Learn more

Digital whistleblowing in restricted environments

Bell, G.B. (2011) Digital whistleblowing in restricted environments. Journal of Digital Information, 12 (3).

Free to read:
*No subscription required


The exposure of an organisation’s illegal or unethical practices is often known as whistleblowing. It is currently a high- profile activity as a consequence of whistleblowing websites such as Wikileaks. However, modern digital fingerprinting technologies allow the identification of the human users associated with a particular copy of a leaked digital file. Fear of such discovery may discourage the public from exposing illegal or unethical practices. This paper therefore introduces the novel whistleblower- defending problem, a unique variant of the existing document- marking and traitor-tracing problems. It is addressed here by outlining practical steps that real-world whistleblowers can take to improve their safety, using only standard desktop OS features. ZIP compression is found to be useful for indirect file comparison, in cases where direct file comparison or use of checksums is impossible, inconvenient or easily traceable. The methods of this paper are experimentally evaluated and found to be effective.

Item Type: Journal Article
Item Control Page Item Control Page