3 Commits

Author SHA1 Message Date
Mamy Ratsimbazafy
f57d071f11
Ethereum KZG polynomial commitments / EIP-4844 (part 1) (#239)
* common error model for serialization of BLS signatures and KZG objects

* [KZG] add Ethereum's test vectors [skip ci]

* dump progress on KZG

* Stash: trusted setup generator

* implement cache optimized bit-reversal-permutation

* Add generator for the Ethereum test trusted setups

* implement naive deserialization for the trusted setup interchange format

* implement verify_kzg_proof

* Add test skeleton of verify KZG proof

* rebase import fixes
2023-08-13 15:08:04 +02:00
Mamy Ratsimbazafy
b7687ddc4a
Accelerate eth_evm_modexp by 25x by dividing input size by 8 (#249)
* Accelerate eth_evm_modexp by 25x by dividing input size by 8 (scales quadratically)

* instant exponentiation by power of 2 depending on trailing zeroes

* improve bench report

* rename

* rewrite the pow2k even/trailingZero accel

* eth_evm_modexp: remove leftover TimeEffect
2023-07-03 01:45:36 +02:00
Mamy Ratsimbazafy
b1ef2682d6
Modular exponentiation (arbitrary output) and EIP-198 (#242)
* implement arbitrary precision modular exponentiation (prerequisite EIP-198)

* [modexp] implement exponentiation modulo 2ᵏ

* add inversion (mod 2ᵏ)

* [modexp] High-level wrapper for powmod with odd modulus

* [modexp] faster exponentiation (mod 2ᵏ) for even case and Euler's totient function odd case

* [modexp] implement general fast modular exponentiation

* Fix modular reduction with 64-bit modulus + fuzz powmod vs GMP

* add benchmark

* add EIP-198 support

* fixups following self review

* fix test paths
2023-06-01 23:38:41 +02:00