Abstract
When encrypted material is discovered during a digital investigation and the investigator cannot decrypt the material then s/he is faced with the problem of how to determine the evidential value of the material. This research is proposing a methodology of extracting probative value from the encrypted file of a hybrid cryptosystem. The methodology also incorporates a technique for locating the original plaintext file. Since child pornography (KP) images and terrorist related information (TI) are transmitted in encrypted format the digital investigator must ask the question Cui Bono? – who benefits or who is the recipient? By doing this the scope of the digital investigation can be extended to reveal the intended recipient.
The original version of this chapter was revised: The copyright line was incorrect. This has been corrected. The Erratum to this chapter is available at DOI: 10.1007/978-3-642-02312-5_25
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© 2009 ICST Institute for Computer Science, Social Informatics and Telecommunications Engineering
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McGrath, N., Gladyshev, P., Kechadi, T., Carthy, J. (2009). Investigating Encrypted Material. In: Sorell, M. (eds) Forensics in Telecommunications, Information and Multimedia. e-Forensics 2009. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 8. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-02312-5_4
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DOI: https://doi.org/10.1007/978-3-642-02312-5_4
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-02311-8
Online ISBN: 978-3-642-02312-5
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