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Erschienen in:
2006 | OriginalPaper | Buchkapitel
The APROB Channel: Adaptive Semi-Real-Time Anonymous Communication
verfasst von : Gergely Tóth, Zoltán Hornák
Erschienen in: Security and Privacy in Dynamic Environments
Verlag: Springer US
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Anonymous communication has become a building block of network services. Besides providing anonymity, speed (and thus
real-time guarantees)
are becoming crucial as well. In this paper we will introduce the
global delaying adversary (GDA)
, an active attacker who is capable of arbitrarily delaying messages, while eavesdropping on all communication channels. This type of foe is particularly relevant for inter-mix relationships, where communication between the partners is secured (by authentication and integrity protection), and delaying remains the only effective external active attacking possibility. To counter GDA, the
adaptive semi-real-time APROB Channel
will be introduced. It will be shown that the APROB Channel can provide a guaranteed level of anonymity under semi-real-time
1
conditions considering that the adversary cannot obtain any additional information by delaying messages, thus this type of attack
will not be reasonable
.