threshold

package
v1.0.0 Latest Latest
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 Go to latest Published: Dec 25, 2025 License: Apache-2.0 Imports: 12 Imported by: 0

Documentation

Overview

Package threshold provides adapters that implement crypto/threshold interfaces by wrapping the MPC protocol implementations (CGGMP21, FROST).

Index

Constants

This section is empty.

Variables

This section is empty.

Functions

This section is empty.

Types

type CGGMP21Scheme 

type CGGMP21Scheme struct {
	// contains filtered or unexported fields
}

CGGMP21Scheme implements threshold.Scheme for CGGMP21 (threshold ECDSA).

func (*CGGMP21Scheme) ID 

func (s *CGGMP21Scheme) ID() cryptothreshold.SchemeID

func (*CGGMP21Scheme) KeyShareSize 

func (s *CGGMP21Scheme) KeyShareSize() int

func (*CGGMP21Scheme) Name 

func (s *CGGMP21Scheme) Name() string

func (*CGGMP21Scheme) NewAggregator 

func (s *CGGMP21Scheme) NewAggregator(groupKey cryptothreshold.PublicKey) (cryptothreshold.Aggregator, error)

func (*CGGMP21Scheme) NewDKG 

func (s *CGGMP21Scheme) NewDKG(config cryptothreshold.DKGConfig) (cryptothreshold.DKG, error)

func (*CGGMP21Scheme) NewSigner 

func (s *CGGMP21Scheme) NewSigner(share cryptothreshold.KeyShare) (cryptothreshold.Signer, error)

func (*CGGMP21Scheme) NewTrustedDealer 

func (s *CGGMP21Scheme) NewTrustedDealer(config cryptothreshold.DealerConfig) (cryptothreshold.TrustedDealer, error)

func (*CGGMP21Scheme) NewVerifier 

func (s *CGGMP21Scheme) NewVerifier(groupKey cryptothreshold.PublicKey) (cryptothreshold.Verifier, error)

func (*CGGMP21Scheme) ParseKeyShare 

func (s *CGGMP21Scheme) ParseKeyShare(data []byte) (cryptothreshold.KeyShare, error)

func (*CGGMP21Scheme) ParsePublicKey 

func (s *CGGMP21Scheme) ParsePublicKey(data []byte) (cryptothreshold.PublicKey, error)

func (*CGGMP21Scheme) ParseSignature 

func (s *CGGMP21Scheme) ParseSignature(data []byte) (cryptothreshold.Signature, error)

func (*CGGMP21Scheme) ParseSignatureShare 

func (s *CGGMP21Scheme) ParseSignatureShare(data []byte) (cryptothreshold.SignatureShare, error)

func (*CGGMP21Scheme) PublicKeySize 

func (s *CGGMP21Scheme) PublicKeySize() int

func (*CGGMP21Scheme) SignatureShareSize 

func (s *CGGMP21Scheme) SignatureShareSize() int

func (*CGGMP21Scheme) SignatureSize 

func (s *CGGMP21Scheme) SignatureSize() int

type FROSTScheme 

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

FROSTScheme implements threshold.Scheme for FROST (threshold EdDSA).

func (*FROSTScheme) ID 

func (s *FROSTScheme) ID() cryptothreshold.SchemeID

func (*FROSTScheme) KeyShareSize 

func (s *FROSTScheme) KeyShareSize() int

func (*FROSTScheme) Name 

func (s *FROSTScheme) Name() string

func (*FROSTScheme) NewAggregator 

func (s *FROSTScheme) NewAggregator(groupKey cryptothreshold.PublicKey) (cryptothreshold.Aggregator, error)

func (*FROSTScheme) NewDKG 

func (s *FROSTScheme) NewDKG(config cryptothreshold.DKGConfig) (cryptothreshold.DKG, error)

func (*FROSTScheme) NewSigner 

func (s *FROSTScheme) NewSigner(share cryptothreshold.KeyShare) (cryptothreshold.Signer, error)

func (*FROSTScheme) NewTrustedDealer 

func (s *FROSTScheme) NewTrustedDealer(config cryptothreshold.DealerConfig) (cryptothreshold.TrustedDealer, error)

func (*FROSTScheme) NewVerifier 

func (s *FROSTScheme) NewVerifier(groupKey cryptothreshold.PublicKey) (cryptothreshold.Verifier, error)

func (*FROSTScheme) ParseKeyShare 

func (s *FROSTScheme) ParseKeyShare(data []byte) (cryptothreshold.KeyShare, error)

func (*FROSTScheme) ParsePublicKey 

func (s *FROSTScheme) ParsePublicKey(data []byte) (cryptothreshold.PublicKey, error)

func (*FROSTScheme) ParseSignature 

func (s *FROSTScheme) ParseSignature(data []byte) (cryptothreshold.Signature, error)

func (*FROSTScheme) ParseSignatureShare 

func (s *FROSTScheme) ParseSignatureShare(data []byte) (cryptothreshold.SignatureShare, error)

func (*FROSTScheme) PublicKeySize 

func (s *FROSTScheme) PublicKeySize() int

func (*FROSTScheme) SignatureShareSize 

func (s *FROSTScheme) SignatureShareSize() int

func (*FROSTScheme) SignatureSize 

func (s *FROSTScheme) SignatureSize() int

type Manager 

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

Manager manages multiple threshold signature protocols

func NewManager 

func NewManager() *Manager

NewManager creates a new protocol manager with all supported protocols

func (*Manager) Close 

func (m *Manager) Close()

Close cleans up all protocols

func (*Manager) GetProtocol 

func (m *Manager) GetProtocol(name string) (protocol.Protocol, error)

GetProtocol returns a protocol by name

func (*Manager) GetProtocolForScheme 

func (m *Manager) GetProtocolForScheme(scheme SignatureScheme) (protocol.Protocol, error)

GetProtocolForScheme returns the appropriate protocol for a signature scheme

func (*Manager) ListProtocols 

func (m *Manager) ListProtocols() []string

ListProtocols returns a list of registered protocol names

func (*Manager) RegisterProtocol 

func (m *Manager) RegisterProtocol(name string, proto protocol.Protocol)

RegisterProtocol registers a new protocol implementation

type SignatureScheme 

type SignatureScheme string

SignatureScheme represents the type of signature scheme 

const (
	// SchemeECDSA represents ECDSA signature scheme (using CMP/CGGMP21)
	SchemeECDSA SignatureScheme = "ECDSA"
	// SchemeEdDSA represents EdDSA signature scheme (using FROST)
	SchemeEdDSA SignatureScheme = "EdDSA"
	// SchemeTaproot represents Taproot/Schnorr signature scheme (using FROST)
	SchemeTaproot SignatureScheme = "Taproot"
)

type UnifiedThresholdAPI 

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

UnifiedThresholdAPI provides a unified interface for threshold signing operations

func NewUnifiedThresholdAPI 

func NewUnifiedThresholdAPI() *UnifiedThresholdAPI

NewUnifiedThresholdAPI creates a new unified threshold API

func (*UnifiedThresholdAPI) Close 

func (api *UnifiedThresholdAPI) Close()

Close cleans up resources

func (*UnifiedThresholdAPI) GetSupportedSchemes 

func (api *UnifiedThresholdAPI) GetSupportedSchemes() []SignatureScheme

GetSupportedSchemes returns all supported signature schemes

func (*UnifiedThresholdAPI) IsSchemeSupported 

func (api *UnifiedThresholdAPI) IsSchemeSupported(scheme SignatureScheme) bool

IsSchemeSupported checks if a signature scheme is supported

func (*UnifiedThresholdAPI) KeyGen 

func (api *UnifiedThresholdAPI) KeyGen(
	scheme SignatureScheme,
	selfID string,
	partyIDs []string,
	threshold int,
) (protocol.Party, error)

KeyGen initiates distributed key generation for the specified scheme

func (*UnifiedThresholdAPI) PreSign 

func (api *UnifiedThresholdAPI) PreSign(
	config protocol.KeyGenConfig,
	signers []string,
) (protocol.Party, error)

PreSign initiates presigning (only for ECDSA)

func (*UnifiedThresholdAPI) PreSignOnline 

func (api *UnifiedThresholdAPI) PreSignOnline(
	config protocol.KeyGenConfig,
	preSignature protocol.PreSignature,
	messageHash []byte,
) (protocol.Party, error)

PreSignOnline completes a signature with a presignature (only for ECDSA)

func (*UnifiedThresholdAPI) Refresh 

func (api *UnifiedThresholdAPI) Refresh(
	scheme SignatureScheme,
	config protocol.KeyGenConfig,
) (protocol.Party, error)

Refresh refreshes key shares

func (*UnifiedThresholdAPI) Sign 

func (api *UnifiedThresholdAPI) Sign(
	scheme SignatureScheme,
	config protocol.KeyGenConfig,
	signers []string,
	messageHash []byte,
) (protocol.Party, error)

Sign creates a threshold signature

Source Files

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