What is the Context of Function Secret Sharing?

Function Secret Sharing is a developing area in advanced cryptography, often appearing in news about privacy-preserving computations and secure multi-party computation (MPC). Its application in blockchain technology could enable confidential transactions or private smart contract execution where data remains hidden from individual nodes but verifiable collectively. Research continues on optimizing FSS for efficiency and practicality within distributed systems.

Function Secret Sharing ∞ Area

Function Secret Sharing

Definition

Function Secret Sharing (FSS) is a cryptographic primitive that allows a function to be secretly shared among multiple parties. Each party receives a share of the function such that they cannot determine the function itself individually. However, when all parties combine their shares, they can collectively compute the function’s output without revealing the function or the inputs to each other.

A crystalline structure composed of interconnected white spheres encased in a transparent shell, set against a blurred background of blue, intricate machinery. This visually represents the foundational atomic elements of blockchain technology, such as cryptographic hashes and distributed ledger immutability. The central cluster signifies a block's data payload, with surrounding spheres potentially symbolizing nodes in a consensus mechanism. The overall aesthetic evokes the complex, secure, and interconnected nature of decentralized finance DeFi protocols and the underlying digital asset infrastructure.

∞Cryptographic Assumptions

∞Point Queries

∞Function Secret Sharing

Publicly Verifiable PIR: Private Queries with Public Result Integrity

This research introduces Publicly Verifiable Private Information Retrieval, enabling transparent, auditable private data queries in decentralized systems.

Publicly Verifiable PIR: Private Queries with Public Result Integrity

Incrypthos

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