HiSE: Hierarchical (Threshold) Symmetric-key Encryption

ePrint Report: HiSE: Hierarchical (Threshold) Symmetric-key Encryption

Pousali Dey, Pratyay Mukherjee, Swagata Sasmal, Rohit Sinha

Threshold symmetric encryption (TSE), introduced by Agrawal et al. [DiSE, CCS 2018], provides scalable and decentralized solution for symmetric encryption by ensuring that the secret-key stays distributed at all times. They avoid having a single point of attack or failure, while achieving the necessary security requirements. TSE was further improved by Christodorescu et al. [ATSE, CCS 2021] to support an amortization feature which enables a …

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