Abstract
We propose a new hash function Reinforced Concrete, which is the first generic purpose hash that is fast both for a zero-knowledge prover and in native x86 computations. It is suitable for a various range of zero-knowledge proofs and protocols, from set membership to generic purpose verifiable computation. Being up to 15x faster than its predecessor Poseidon hash, Reinforced Concrete inherits security from traditional time-tested schemes such as AES, whereas taking the zero-knowledge performance from a novel and efficient decomposition of a prime field into compact buckets.
The new hash function is suitable for a wide range of applications like privacy-preserving cryptocurrencies, verifiable encryption, protocols with state membership proofs, or verifiable computation. It may serve as a drop-in replacement for various prime-field hashes such as variants of MiMC, Poseidon, Pedersen hash, and others.
The new hash function is suitable for a wide range of applications like privacy-preserving cryptocurrencies, verifiable encryption, protocols with state membership proofs, or verifiable computation. It may serve as a drop-in replacement for various prime-field hashes such as variants of MiMC, Poseidon, Pedersen hash, and others.
| Original language | English |
|---|---|
| Title of host publication | CCS '22 |
| Subtitle of host publication | Proceedings of the 2022 ACM SIGSAC Conference on Computer and Communications Security |
| Place of Publication | New York |
| Publisher | Association for Computing Machinery, Inc. |
| Pages | 1323-1335 |
| Number of pages | 13 |
| ISBN (Electronic) | 978-1-4503-9450-5 |
| DOIs | |
| Publication status | Published - 7 Nov 2022 |
| Externally published | Yes |