# Algorand: Subset-Sum Hash Specification

September 3, 2021

Written by: [Algorand Foundation](https://algorand.co/blog/author/algorand-foundation)

This research paper by Algorand presents the specification of the Subset Sum Hash function, whose quantum-cryptanalysis has proven to have at least 128 bits of security against known quantum collision-finding attacks. This primitive is used by Algorand consensus to generate State Proofs.

[To read in full, click here.](https://github.com/algorand/go-sumhash/blob/master/spec/sumhash-spec.pdf)

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