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In the near future, ad-hoc and sensor networks will become more a part of everyday life. However, they could become a threat if security is not considered before deployment. Authentication in ad-hoc networks is a core requirement for secure protocols
and secure applications of ad-hoc networks. Thus authentication in ad-hoc networks is the focus of this work.
The security issues for ad-hoc networks and sensor networks are different than those for fixed networks. Consequently, protocols need to be designed that are appropriate for such networks. This thesis gives an overview of authentication schemes and
analyzes how well they are suited to ad-hoc networks. Furthermore, it is analyzed how well digital signature schemes can be used in ad-hoc networks. Then, two new extremely efficient authentication schemes for pairwise authentication are proposed, and
finally an application of authentication providing component identification is developed.
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