mirror of
https://github.com/luxfi/node.git
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zeekay
7cf87b230b
The module already called itself github.com/luxfi/node while containing no node in Go: cmd/luxd was twenty-one lines that printed the size of a few types, and the Go column of the matrix measured a VM plugin. A repo that fetches the thing it claims to be has not replaced it, so the Go sources move in — 1515 files, the daemon and everything under it — and the build reaches outside this module for nothing. Rust and C++ sit beside it unchanged and are still measured against it by the differential. That is the point of one repo: the reference implementation and the two ports are the same checkout, so parity is a thing you can run rather than a thing you assert. Verified: builds, and the closure carries no lux-private — checked at build time rather than believed. The daemon starts twelve chains on a local network (P X C Q Z A B G K M F, plus D through its plugin) and reports healthy.
116 lines
2.6 KiB
Go
116 lines
2.6 KiB
Go
// Copyright (C) 2019-2025, Lux Industries Inc. All rights reserved.
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// See the file LICENSE for licensing terms.
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package signer
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import (
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"errors"
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"github.com/go-json-experiment/json"
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"github.com/luxfi/crypto/bls"
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"github.com/luxfi/formatting"
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)
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var (
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_ Signer = (*ProofOfPossession)(nil)
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ErrInvalidProofOfPossession = errors.New("invalid proof of possession")
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)
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type ProofOfPossession struct {
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PublicKey [bls.PublicKeyLen]byte `json:"publicKey"`
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// BLS signature proving ownership of [PublicKey]. The signed message is the
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// [PublicKey].
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ProofOfPossession [bls.SignatureLen]byte `json:"proofOfPossession"`
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// publicKey is the parsed version of [PublicKey]. It is populated in
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// [Verify].
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publicKey *bls.PublicKey
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}
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func NewProofOfPossession(sk bls.Signer) (*ProofOfPossession, error) {
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pk := sk.PublicKey()
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pkBytes := bls.PublicKeyToCompressedBytes(pk)
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sig, err := sk.SignProofOfPossession(pkBytes)
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if err != nil {
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return nil, err
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}
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sigBytes := bls.SignatureToBytes(sig)
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pop := &ProofOfPossession{
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publicKey: pk,
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}
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copy(pop.PublicKey[:], pkBytes)
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copy(pop.ProofOfPossession[:], sigBytes)
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return pop, nil
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}
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func (p *ProofOfPossession) Verify() error {
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publicKey, err := bls.PublicKeyFromCompressedBytes(p.PublicKey[:])
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if err != nil {
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return err
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}
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signature, err := bls.SignatureFromBytes(p.ProofOfPossession[:])
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if err != nil {
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return err
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}
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if !bls.VerifyProofOfPossession(publicKey, signature, p.PublicKey[:]) {
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return ErrInvalidProofOfPossession
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}
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p.publicKey = publicKey
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return nil
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}
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func (p *ProofOfPossession) Key() *bls.PublicKey {
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return p.publicKey
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}
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type jsonProofOfPossession struct {
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PublicKey string `json:"publicKey"`
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ProofOfPossession string `json:"proofOfPossession"`
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}
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func (p *ProofOfPossession) MarshalJSON() ([]byte, error) {
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pk, err := formatting.Encode(formatting.HexNC, p.PublicKey[:])
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if err != nil {
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return nil, err
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}
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pop, err := formatting.Encode(formatting.HexNC, p.ProofOfPossession[:])
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if err != nil {
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return nil, err
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}
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return json.Marshal(jsonProofOfPossession{
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PublicKey: pk,
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ProofOfPossession: pop,
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})
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}
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func (p *ProofOfPossession) UnmarshalJSON(b []byte) error {
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jsonBLS := jsonProofOfPossession{}
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err := json.Unmarshal(b, &jsonBLS)
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if err != nil {
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return err
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}
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pkBytes, err := formatting.Decode(formatting.HexNC, jsonBLS.PublicKey)
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if err != nil {
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return err
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}
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pk, err := bls.PublicKeyFromCompressedBytes(pkBytes)
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if err != nil {
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return err
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}
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popBytes, err := formatting.Decode(formatting.HexNC, jsonBLS.ProofOfPossession)
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if err != nil {
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return err
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}
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copy(p.PublicKey[:], pkBytes)
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copy(p.ProofOfPossession[:], popBytes)
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p.publicKey = pk
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return nil
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}
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