VIP: Add support for Alt_Bn128 precompile curve operations
#1 650 ouverte le 24 oct. 2019
Métriques du dépôt
- Stars
- (4 710 stars)
- Métriques de merge PR
- (Merge moyen 10j 21h) (34 PRs mergées en 30 j)
Description
Simple Summary
Add support for precompiled opcode for alt_bn128 pairing calculation
Motivation
We already have support for ecadd and ecmul which perform the corresponding alt_bn128 curve operations (and which should perhaps be renamed to bn128_ecadd and bn128_ecmul), but we do not have support for bn128 pairing operations, which allows the verification of Zero-Knowledge proofs using the alt-bn128 curve, such as in zk-SNARK implementations. This would allow ZKP verifier contracts to be created in Vyper (such as the ones ZoKrates can create).
Specification
alt-bn128 elliptic curve pairing operations were already added as of Byzantium via EIP-197 (with gas costs to be updated in Istanbul via EIP-1108). A reference implementation is provided here: https://github.com/ethereum/py-evm/blob/master/eth/precompiles/ecpairing.py
Backwards Compatibility
No backwards incompatibilities
Dependencies
No dependencies
Copyright
Copyright and related rights waived via CC0