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Extend Poseidon to 16 inputs (#37)

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* Extend poseidon to 16 inputs. Better initialization of Poseidon constants
* Update deps
* Fix linter warnings
* Test vectors for poseidon with 14 inputs
This commit is contained in:
Oleksandr Brezhniev
2021-10-06 13:11:09 +03:00
committed by GitHub
parent 933c28a8d7
commit ef9f86210a
9 changed files with 25299 additions and 24896 deletions
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6
poseidon/poseidon.go
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@@ -10,7 +10,7 @@ import (
const NROUNDSF = 8 //nolint:golint
var NROUNDSP = []int{56, 57, 56, 60, 60, 63, 64, 63} //nolint:golint
var NROUNDSP = []int{56, 57, 56, 60, 60, 63, 64, 63, 60, 66, 60, 65, 70, 60, 64, 68} //nolint:golint
func zero() *ff.Element {
return ff.NewElement()
@@ -19,7 +19,7 @@ func zero() *ff.Element {
// exp5 performs x^5 mod p
// https://eprint.iacr.org/2019/458.pdf page 8
func exp5(a *ff.Element) {
a.Exp(*a, 5)
a.Exp(*a, 5) //nolint:gomnd
}
// exp5state perform exp5 for whole state
@@ -57,7 +57,7 @@ func mix(state []*ff.Element, t int, m [][]*ff.Element) []*ff.Element {
func Hash(inpBI []*big.Int) (*big.Int, error) {
t := len(inpBI) + 1
if len(inpBI) == 0 || len(inpBI) >= len(NROUNDSP)-1 {
return nil, fmt.Errorf("invalid inputs length %d, max %d", len(inpBI), len(NROUNDSP)-1)
return nil, fmt.Errorf("invalid inputs length %d, max %d", len(inpBI), len(NROUNDSP)-2) //nolint:gomnd,lll
}
inp := utils.BigIntArrayToElementArray(inpBI[:])