Security

Broker-Based Private Matching

Date Added: Apr 2012
Format: PDF

Private matching solutions allow two parties to find common data elements over their own datasets without revealing any additional private information. The authors propose a new concept involving an intermediate entity in the private matching process: they consider the problem of broker-based private matching where end-entities do not interact with each other but communicate through a third entity, namely the Broker, which only discovers the number of matching elements. Although introducing this third entity enables a complete decoupling between end entities (which may even not know each other), this advantage comes at the cost of higher exposure in terms of privacy and security.