dleq

Documentation

Overview

Package dleq provides a sub-api built on top of the go-dleq package for our atomic swaps. The API allows you to verify that a Monero public spend key on the ed25519 curve have the same discrete logarithm (same shared secret) as a public key on the secp256k1 curve. A ZK DLEq proof is used to prove equivalence of the secret key corresponding to public keys on both curves.

Index

• type DefaultDLEq
• type GoDLEq
  • func (d *GoDLEq) Prove() (*Proof, error)
  • func (d *GoDLEq) Verify(p *Proof) (*VerifyResult, error)
• type Interface
• type Proof
  • func NewProofWithoutSecret(p []byte) *Proof
  • func (p *Proof) Proof() []byte
  • func (p *Proof) Secret() [32]byte
• type VerifyResult
  • func (r *VerifyResult) Ed25519PublicKey() *mcrypto.PublicKey
  • func (r *VerifyResult) Secp256k1PublicKey() *secp256k1.PublicKey

Types

type DefaultDLEq

type DefaultDLEq = GoDLEq

DefaultDLEq is the default DLEq prover. Currently, the only implementation is GoDLEq.

type GoDLEq

type GoDLEq struct{}

GoDLEq is a wrapper around the go-dleq library prover and verifier.

func (*GoDLEq) Prove

func (d *GoDLEq) Prove() (*Proof, error)

Prove generates a secret scalar and a proof that it has a corresponding public key on the secp256k1 and ed25519 curves.

func (*GoDLEq) Verify

func (d *GoDLEq) Verify(p *Proof) (*VerifyResult, error)

Verify verifies the given proof. It returns the secp256k1 and ed25519 public keys corresponding to the secret value.

type Interface

type Interface interface {
	Prove() (*Proof, error)
	Verify(*Proof) (*VerifyResult, error)
}

Interface ...

type Proof

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

Proof represents a DLEq proof

func NewProofWithoutSecret

func NewProofWithoutSecret(p []byte) *Proof

NewProofWithoutSecret returns a new Proof without a secret from the given proof slice

func (*Proof) Proof

func (p *Proof) Proof() []byte

Proof returns the encoded DLEq proof

func (*Proof) Secret

func (p *Proof) Secret() [32]byte

Secret returns the proof's 32-byte secret

type VerifyResult

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

VerifyResult contains the public keys resulting from verifying a DLEq proof

func (*VerifyResult) Ed25519PublicKey

func (r *VerifyResult) Ed25519PublicKey() *mcrypto.PublicKey

Ed25519PublicKey returns the ed25519 public key associated with the DLEq verification

func (*VerifyResult) Secp256k1PublicKey

func (r *VerifyResult) Secp256k1PublicKey() *secp256k1.PublicKey

Secp256k1PublicKey returns the secp256k1 public key associated with the DLEq verification