A cryptographic file system for UNIX
CCS '93 Proceedings of the 1st ACM conference on Computer and communications security
Chord: A scalable peer-to-peer lookup service for internet applications
Proceedings of the 2001 conference on Applications, technologies, architectures, and protocols for computer communications
Executing SQL over encrypted data in the database-service-provider model
Proceedings of the 2002 ACM SIGMOD international conference on Management of data
Securing XML Documents with Author-X
IEEE Internet Computing
Transforming data to satisfy privacy constraints
Proceedings of the eighth ACM SIGKDD international conference on Knowledge discovery and data mining
Practical Techniques for Searches on Encrypted Data
SP '00 Proceedings of the 2000 IEEE Symposium on Security and Privacy
Top-Down Specialization for Information and Privacy Preservation
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
Data Privacy through Optimal k-Anonymization
ICDE '05 Proceedings of the 21st International Conference on Data Engineering
A group key recovery mechanism based on logical key hierarchy
Journal of Computer Security
Plutus: Scalable Secure File Sharing on Untrusted Storage
FAST '03 Proceedings of the 2nd USENIX Conference on File and Storage Technologies
Mondrian Multidimensional K-Anonymity
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
\ell -Diversity: Privacy Beyond \kappa -Anonymity
ICDE '06 Proceedings of the 22nd International Conference on Data Engineering
A security model for full-text file system search in multi-user environments
FAST'05 Proceedings of the 4th conference on USENIX Conference on File and Storage Technologies - Volume 4
Controlling access to published data using cryptography
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Privacy-preserving indexing of documents on the network
VLDB '03 Proceedings of the 29th international conference on Very large data bases - Volume 29
Zerber: r-confidential indexing for distributed documents
EDBT '08 Proceedings of the 11th international conference on Extending database technology: Advances in database technology
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To carry out work assignments, small groups distributed within a larger enterprise or collaborative community often need to share documents among themselves while shielding those documents from others' eyes. In this situation, users need an indexing facility that can quickly locate relevant documents that they are allowed to access, without (1) leaking information about the remaining documents, (2) imposing a large management burden as users, groups, and documents evolve, or (3) requiring users to agree on a central completely trusted authority. In order to achieve this aim user access levels and access control have to be reflected in the index structures and/or retrieval algorithms as well as in ranking the search results. My Ph.D. work focuses on building up an indexing infrastructure which supports confidential indexing, sharing and retrieval of unstructured information which is spread over a number of distributed access-controlled collections. In order to allow for effective and efficient indexing and retrieval in these settings, it considers aspects of confidentiality preservation within an outsourced inverted index, a DHT index structure in P2P networks as well as confidential top-k information retrieval.