\input zb-basic
\input zb-ioport
\iteman{io-port 05372788}
\itemau{P\"ohls, Henrich C.}
\itemti{Verifiable and revocable expression of consent to processing of aggregated personal data.}
\itemso{Chen, Liqun (ed.) et al., Information and communications security. 10th international conference, ICICS 2008, Birmingham, UK, October 20--22, 2008. Proceedings. Berlin: Springer (ISBN 978-3-540-88624-2/pbk). Lecture Notes in Computer Science 5308, 279-293 (2008).}
\itemab
Summary: We have identified the following three problems for the processing of aggregated personal information with respect to privacy preferences: Unverifiable proof of consent, unverifiable proof of consent for aggregated personal data, and no verification if the consent is still established. We constructed a solution based on a hash tree structure and digitally signed only the hash tree's root value. Thus, a verifiable signature can be retained even if data items are omitted and a valid signature serves as signal of consent. To re-assure that no change of consent has taken place we propose the use of certificate revocation mechanisms. As a side-effect these mechanisms allow to maintain a record of personal data usage and thus creates a win-win situation for both parties involved.
\itemrv{~}
\itemcc{}
\itemut{}
\itemli{doi:10.1007/978-3-540-88625-9\_19}
\end