Cryptographically Protected Prefixes for Location Privacy in IPv6

Provided by: International Association for Cryptologic Research
Topic: Security
Format: PDF
There is a growing concern with preventing unauthorized agents from discovering the geographical location of internet users, a kind of security called location privacy. Typical deployments of IPv6 make it possible to deduce the approximate geographical location of a device from its IPv6 address. The authors present a scheme called Cryptographically Protected Prefixes (CPP), to address this problem at the level of IPv6 addressing and forwarding. CPP randomizes the address space of a defined topological region (privacy domain), thereby making it infeasible to infer location information from an IP address. CPP can be deployed incrementally.

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