Revocable Anonymity

Anonymity services in the EU may be forced by the new EU data retention directive to collect connection data and deanonymise some of their users in case of serious crimes. For this purpose, we propose a new privacy-friendly solution for incorporating revocation in an anonymous communication system....

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Bibliographic Details
Published inEmerging Trends in Information and Communication Security pp. 206 - 220
Main Authors Köpsell, Stefan, Wendolsky, Rolf, Federrath, Hannes
Format Book Chapter
LanguageEnglish
Published Berlin, Heidelberg Springer Berlin Heidelberg 2006
SeriesLecture Notes in Computer Science
Subjects
Blind Signature
Blind Signature Scheme
Cryptographic Primitive
Group Signature Scheme
Signature Scheme
Online AccessGet full text
ISBN9783540346401
3540346406
ISSN0302-9743
1611-3349
DOI10.1007/11766155_15

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Abstract Anonymity services in the EU may be forced by the new EU data retention directive to collect connection data and deanonymise some of their users in case of serious crimes. For this purpose, we propose a new privacy-friendly solution for incorporating revocation in an anonymous communication system. In contrast to other known methods, our scheme does not reveal the identity of a user to any other entity involved in the revocation procedure but the law enforcement agency. Another advantage is, that no user will need to provide more identifying information than his connection (IP) address, that is what he needs to communicate with the system anyway. The proposed scheme is based mainly on threshold group signatures and threshold atomic proxy re-encryption.
AbstractList Anonymity services in the EU may be forced by the new EU data retention directive to collect connection data and deanonymise some of their users in case of serious crimes. For this purpose, we propose a new privacy-friendly solution for incorporating revocation in an anonymous communication system. In contrast to other known methods, our scheme does not reveal the identity of a user to any other entity involved in the revocation procedure but the law enforcement agency. Another advantage is, that no user will need to provide more identifying information than his connection (IP) address, that is what he needs to communicate with the system anyway. The proposed scheme is based mainly on threshold group signatures and threshold atomic proxy re-encryption.
Author Federrath, Hannes
Köpsell, Stefan
Wendolsky, Rolf
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Snippet Anonymity services in the EU may be forced by the new EU data retention directive to collect connection data and deanonymise some of their users in case of...
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StartPage 206
SubjectTerms Blind Signature
Blind Signature Scheme
Cryptographic Primitive
Group Signature Scheme
Signature Scheme
Title Revocable Anonymity
URI http://link.springer.com/10.1007/11766155_15
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