A Layered Secret Sharing Scheme and its Application to Online Social Networks

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Provided by: NICTA
Topic: Security
Format: PDF
The authors propose a novel multi-layer secret sharing scheme and its application to automate profile sharing in Online Social Network (OSN) groups. The scheme allows sharing of multiple secrets with arbitrary (and different) thresholds, while keeping both the number of secrets that are shared and their thresholds private. The scheme is based on a combination of selected (at every layer) secret sharing mechanisms, allowing for the trade-off between computational complexity and communication costs and scheme's security.
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