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arnaucube
2020-12-16 15:04:43 +01:00
parent 821a601d20
commit 6d75396b4b
14 changed files with 203 additions and 113 deletions
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14
mimc7/mimc7.go
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@@ -10,6 +10,7 @@ import (
"github.com/iden3/go-iden3-crypto/utils"
)
// SEED defines the seed used to constants
const SEED = "mimc"
var constants = generateConstantsData()
@@ -47,8 +48,9 @@ func getConstants(seed string, nRounds int) []*ff.Element {
return cts
}
// MIMC7HashGeneric performs the MIMC7 hash over a *big.Int, in a generic way, where it can be specified the Finite Field over R, and the number of rounds
func MIMC7HashGeneric(xInBI, kBI *big.Int, nRounds int) *big.Int {
// MIMC7HashGeneric performs the MIMC7 hash over a *big.Int, in a generic way,
// where it can be specified the Finite Field over R, and the number of rounds
func MIMC7HashGeneric(xInBI, kBI *big.Int, nRounds int) *big.Int { //nolint:golint
xIn := ff.NewElement().SetBigInt(xInBI)
k := ff.NewElement().SetBigInt(kBI)
@@ -72,7 +74,8 @@ func MIMC7HashGeneric(xInBI, kBI *big.Int, nRounds int) *big.Int {
return res
}
// HashGeneric performs the MIMC7 hash over a *big.Int array, in a generic way, where it can be specified the Finite Field over R, and the number of rounds
// HashGeneric performs the MIMC7 hash over a *big.Int array, in a generic way,
// where it can be specified the Finite Field over R, and the number of rounds
func HashGeneric(iv *big.Int, arr []*big.Int, nRounds int) (*big.Int, error) {
if !utils.CheckBigIntArrayInField(arr) {
return nil, errors.New("inputs values not inside Finite Field")
@@ -88,8 +91,9 @@ func HashGeneric(iv *big.Int, arr []*big.Int, nRounds int) (*big.Int, error) {
return r, nil
}
// MIMC7Hash performs the MIMC7 hash over a *big.Int, using the Finite Field over R and the number of rounds setted in the `constants` variable
func MIMC7Hash(xInBI, kBI *big.Int) *big.Int {
// MIMC7Hash performs the MIMC7 hash over a *big.Int, using the Finite Field
// over R and the number of rounds setted in the `constants` variable
func MIMC7Hash(xInBI, kBI *big.Int) *big.Int { //nolint:golint
xIn := ff.NewElement().SetBigInt(xInBI)
k := ff.NewElement().SetBigInt(kBI)