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Erschienen in:
2007 | OriginalPaper | Buchkapitel
End-to-End Header Protection in Signed S/MIME
verfasst von : Lijun Liao, Jörg Schwenk
Erschienen in: On the Move to Meaningful Internet Systems 2007: CoopIS, DOA, ODBASE, GADA, and IS
Verlag: Springer Berlin Heidelberg
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S/MIME has been widely used to provide the end-to-end authentication, integrity and non-repudiation. S/MIME has the significant drawback that headers are unauthentic. DKIM protects specified headers, but only between the sending server and the receiver. These lead to possible impersonation attacks and profiling of the email communication, and encourage spam and phishing activities. In this paper we propose an approach to extend S/MIME to support end-to-end integrity of email headers. This approach is fully compatible with S/MIME. Under some reasonable assumption our approach can help reduce spam efficiently.