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Analysis of Signature Wrapping Attacks and Countermeasures

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4 Author(s)
Gajek, S. ; Horst Gortz Inst. for IT Security, Ruhr Univ. Bochum, Bochum, Germany ; Jensen, M. ; Liao, Lijun ; Schwenk, J.

In recent research it turned out that Boolean verification of digital signatures in the context of WS-Security is likely to fail: If parts of a SOAP message are signed and the signature verification applied to the whole document returns true, then nevertheless the document may have been significantly altered.In this paper, we provide a detailed analysis on the possible scenarios that enable these signature wrapping attacks. Derived from this analysis, we propose a new solution that uses a subset of XPath instead of ID attributes to point to the signed subtree, and show that this solution is both efficient and secure.

Published in:

Web Services, 2009. ICWS 2009. IEEE International Conference on

Date of Conference:

6-10 July 2009