Definition ∞ A secure aggregation scheme is a cryptographic method that combines data from multiple sources while preserving individual data privacy. This technique allows a central server to compute an aggregate function, such as a sum or average, over private data contributed by numerous participants without learning each individual’s input. It employs advanced cryptographic protocols, like homomorphic encryption or secure multi-party computation, to ensure confidentiality. This scheme is particularly relevant in decentralized systems where data privacy and integrity are paramount. It facilitates collaborative computations without compromising sensitive information.
Context ∞ In crypto news, secure aggregation schemes are often discussed in the context of privacy-preserving decentralized applications, particularly in areas like federated learning on blockchains or confidential voting systems. News reports highlight their potential to enable data collaboration while upholding user anonymity and data sovereignty. The technical challenges and computational overhead associated with implementing these schemes are frequently debated. Their advancement is crucial for developing privacy-centric Web3 solutions.
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