dklsv1

package
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 Go to latest Published: Mar 10, 2024 License: GPL-3.0 Imports: 11 Imported by: 2

README

Secure Two-party Threshold ECDSA from ECDSA Assumptions

Package dkls implements the 2-of-2 threshold ECDSA signing algorithm of Secure Two-party Threshold ECDSA from ECDSA Assumptions.

Documentation

Overview

package dklsv1 provides a wrapper around the [DKLs18](https://eprint.iacr.org/2018/499.pdf) sign and dkg and provides serialization, serialization, and versioning for the serialized data.

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func DecodeAliceDkgResult 

func DecodeAliceDkgResult(m *protocol.Message) (*dkg.AliceOutput, error)

DecodeAliceDkgResult deserializes Alice DKG output.

func DecodeAliceRefreshResult 

func DecodeAliceRefreshResult(m *protocol.Message) (*dkg.AliceOutput, error)

DecodeAliceRefreshResult deserializes Alice refresh output.

func DecodeBobDkgResult 

func DecodeBobDkgResult(m *protocol.Message) (*dkg.BobOutput, error)

DecodeBobDkgResult deserializes Bob DKG output.

func DecodeBobRefreshResult 

func DecodeBobRefreshResult(m *protocol.Message) (*dkg.BobOutput, error)

DecodeBobRefreshResult deserializes Bob refhresh output.

func DecodeSignature 

func DecodeSignature(m *protocol.Message) (*curves.EcdsaSignature, error)

DecodeSignature serializes the signature.

func EncodeAliceDkgOutput 

func EncodeAliceDkgOutput(result *dkg.AliceOutput, version uint) (*protocol.Message, error)

EncodeAliceDkgOutput serializes Alice DKG output based on the protocol version.

func EncodeAliceRefreshOutput 

func EncodeAliceRefreshOutput(result *dkg.AliceOutput, version uint) (*protocol.Message, error)

EncodeAliceRefreshOutput serializes Alice Refresh output based on the protocol version.

func EncodeBobDkgOutput 

func EncodeBobDkgOutput(result *dkg.BobOutput, version uint) (*protocol.Message, error)

EncodeBobDkgOutput serializes Bob DKG output based on the protocol version.

func EncodeBobRefreshOutput 

func EncodeBobRefreshOutput(result *dkg.BobOutput, version uint) (*protocol.Message, error)

EncodeBobRefreshOutput serializes Bob refresh output based on the protocol version.

Types

type AliceDkg 

type AliceDkg struct {
	*dkg.Alice
	// contains filtered or unexported fields
}

AliceDkg DKLS DKG implementation that satisfies the protocol iterator interface.

func NewAliceDkg 

func NewAliceDkg(curve *curves.Curve, version uint) *AliceDkg

NewAliceDkg creates a new protocol that can compute a DKG as Alice

func (*AliceDkg) Next 

func (p *AliceDkg) Next(input *protocol.Message) (*protocol.Message, error)

Next runs the next step in the protocol and reports errors or increments the step index

func (*AliceDkg) Result 

func (a *AliceDkg) Result(version uint) (*protocol.Message, error)

Result Returns an encoded version of Alice as sequence of bytes that can be used to initialize an AliceSign protocol.

type AliceRefresh 

type AliceRefresh struct {
	*refresh.Alice
	// contains filtered or unexported fields
}

AliceRefresh DKLS refresh implementation that satisfies the protocol iterator interface.

func NewAliceRefresh 

func NewAliceRefresh(curve *curves.Curve, dkgResultMessage *protocol.Message, version uint) (*AliceRefresh, error)

NewAliceRefresh creates a new protocol that can compute a key refresh as Alice

func (*AliceRefresh) Next 

func (p *AliceRefresh) Next(input *protocol.Message) (*protocol.Message, error)

Next runs the next step in the protocol and reports errors or increments the step index

func (*AliceRefresh) Result 

func (a *AliceRefresh) Result(version uint) (*protocol.Message, error)

Result Returns an encoded version of Alice as sequence of bytes that can be used to initialize an AliceSign protocol.

type AliceSign 

type AliceSign struct {
	*sign.Alice
	// contains filtered or unexported fields
}

AliceSign DKLS sign implementation that satisfies the protocol iterator interface.

func NewAliceSign 

func NewAliceSign(curve *curves.Curve, hash hash.Hash, message []byte, dkgResultMessage *protocol.Message, version uint) (*AliceSign, error)

NewAliceSign creates a new protocol that can compute a signature as Alice. Requires dkg state that was produced at the end of DKG.Output().

func (*AliceSign) Next 

func (p *AliceSign) Next(input *protocol.Message) (*protocol.Message, error)

Next runs the next step in the protocol and reports errors or increments the step index

func (*AliceSign) Result 

func (a *AliceSign) Result(_ uint) (*protocol.Message, error)

Result always returns an error. Alice does not compute a signature in the DKLS protocol; only Bob computes the signature.

type BobDkg 

type BobDkg struct {
	*dkg.Bob
	// contains filtered or unexported fields
}

BobDkg DKLS DKG implementation that satisfies the protocol iterator interface.

func NewBobDkg 

func NewBobDkg(curve *curves.Curve, version uint) *BobDkg

NewBobDkg Creates a new protocol that can compute a DKG as Bob.

func (*BobDkg) Next 

func (p *BobDkg) Next(input *protocol.Message) (*protocol.Message, error)

Next runs the next step in the protocol and reports errors or increments the step index

func (*BobDkg) Result 

func (b *BobDkg) Result(version uint) (*protocol.Message, error)

Result returns an encoded version of Bob as sequence of bytes that can be used to initialize an BobSign protocol.

type BobRefresh 

type BobRefresh struct {
	*refresh.Bob
	// contains filtered or unexported fields
}

BobRefresh DKLS refresh implementation that satisfies the protocol iterator interface.

func NewBobRefresh 

func NewBobRefresh(curve *curves.Curve, dkgResultMessage *protocol.Message, version uint) (*BobRefresh, error)

NewBobRefresh Creates a new protocol that can compute a refresh as Bob.

func (*BobRefresh) Next 

func (p *BobRefresh) Next(input *protocol.Message) (*protocol.Message, error)

Next runs the next step in the protocol and reports errors or increments the step index

func (*BobRefresh) Result 

func (b *BobRefresh) Result(version uint) (*protocol.Message, error)

Result returns an encoded version of Bob as sequence of bytes that can be used to initialize an BobSign protocol.

type BobSign 

type BobSign struct {
	*sign.Bob
	// contains filtered or unexported fields
}

BobSign DKLS sign implementation that satisfies the protocol iterator interface.

func NewBobSign 

func NewBobSign(curve *curves.Curve, hash hash.Hash, message []byte, dkgResultMessage *protocol.Message, version uint) (*BobSign, error)

NewBobSign creates a new protocol that can compute a signature as Bob. Requires dkg state that was produced at the end of DKG.Output().

func (*BobSign) Next 

func (p *BobSign) Next(input *protocol.Message) (*protocol.Message, error)

Next runs the next step in the protocol and reports errors or increments the step index

func (*BobSign) Result 

func (b *BobSign) Result(version uint) (*protocol.Message, error)

Result returns the signature that Bob computed as a *core.EcdsaSignature if the signing protocol completed successfully.

Source Files

View all Source files

Directories

Path Synopsis
Package dealer implements key generation via a trusted dealer for the protocol [DKLs18](https://eprint.iacr.org/2018/499.pdf).
 Package dealer implements key generation via a trusted dealer for the protocol [DKLs18](https://eprint.iacr.org/2018/499.pdf).
Package dkg implements the Distributed Key Generation (DKG) protocol of [DKLs18](https://eprint.iacr.org/2018/499.pdf).
 Package dkg implements the Distributed Key Generation (DKG) protocol of [DKLs18](https://eprint.iacr.org/2018/499.pdf).
This file implements the key refresh protocol of [DKLs18](https://eprint.iacr.org/2018/499.pdf).
 This file implements the key refresh protocol of [DKLs18](https://eprint.iacr.org/2018/499.pdf).
Package sign implements the 2-2 threshold signature protocol of [DKLs18](https://eprint.iacr.org/2018/499.pdf).
 Package sign implements the 2-2 threshold signature protocol of [DKLs18](https://eprint.iacr.org/2018/499.pdf).

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