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How to prove all NP-statements in zero-knowledge, and a methodology of cryptographic protocol design
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How to explain zero-knowledge protocols to your children
CRYPTO '89 Proceedings on Advances in cryptology
The active badge location system
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Crowds: anonymity for Web transactions
ACM Transactions on Information and System Security (TISSEC)
The Cricket location-support system
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
Chord: A scalable peer-to-peer lookup service for internet applications
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Proceedings of the first international joint conference on Autonomous agents and multiagent systems: part 1
Handbook of Applied Cryptography
Handbook of Applied Cryptography
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EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Foundations of Cryptography: Volume 2, Basic Applications
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Tor: the second-generation onion router
SSYM'04 Proceedings of the 13th conference on USENIX Security Symposium - Volume 13
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SFCS '82 Proceedings of the 23rd Annual Symposium on Foundations of Computer Science
Civitas: Toward a Secure Voting System
SP '08 Proceedings of the 2008 IEEE Symposium on Security and Privacy
Peer-to-Peer Secure Multi-party Numerical Computation
P2P '08 Proceedings of the 2008 Eighth International Conference on Peer-to-Peer Computing
Fully homomorphic encryption using ideal lattices
Proceedings of the forty-first annual ACM symposium on Theory of computing
Secure Multiparty Computation Goes Live
Financial Cryptography and Data Security
Computing arbitrary functions of encrypted data
Communications of the ACM
A secure and optimally efficient multi-authority election scheme
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Public-key cryptosystems based on composite degree residuosity classes
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Privacy-preserving set operations
CRYPTO'05 Proceedings of the 25th annual international conference on Advances in Cryptology
Diminished chord: a protocol for heterogeneous subgroup formation in peer-to-peer networks
IPTPS'04 Proceedings of the Third international conference on Peer-to-Peer Systems
Ciphertext comparison, a new solution to the millionaire problem
ICICS'05 Proceedings of the 7th international conference on Information and Communications Security
Efficient cryptographic protocol design based on distributed el gamal encryption
ICISC'05 Proceedings of the 8th international conference on Information Security and Cryptology
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IEEE Transactions on Information Theory
Anonymous connections and onion routing
IEEE Journal on Selected Areas in Communications
Personal and Ubiquitous Computing
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In this work, we define the Nearest Doctor Problem for finding the nearest doctor in case of an emergency and present a privacy-preserving protocol for solving it. The solution is based on cryptographic primitives and makes use of the current location of each participating doctor. The protocol is efficient and protects the privacy of the doctors' locations. A prototype implementing the proposed solution for a community of doctors that use mobile devices to obtain their current location is presented. The prototype is evaluated on experimental communities with up to several hundred doctor agents.