mimc

package

v0.0.0-...-ae8e47d Latest Latest Go to latest Published: Mar 25, 2023 License: Apache-2.0 Imports: 12 Imported by: 0

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Package mimc provides a ZKP-circuit function to compute a MiMC hash.

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type MiMC struct {
	// contains filtered or unexported fields
}

MiMC contains the params of the Mimc hash func and the curves on which it is implemented

func NewMiMC(api frontend.API) (MiMC, error)

NewMiMC returns a MiMC instance, than can be used in a gnark circuit

func (h *MiMC) Reset()

Reset resets the Hash to its initial state.

func (h *MiMC) Sum() frontend.Variable

Sum hash (in r1cs form) using Miyaguchi–Preneel: https://en.wikipedia.org/wiki/One-way_compression_function The XOR operation is replaced by field addition. See github.com/consensys/gnark-crypto for reference implementation.

func (h *MiMC) Write(data ...frontend.Variable)

Write adds more data to the running hash.