1 files changed, 0 insertions, 156 deletions
diff --git a/core/authenticator.go b/core/authenticator.go
deleted file mode 100644
index 8e57f71..0000000
--- a/core/authenticator.go
+++ /dev/null
@@ -1,156 +0,0 @@
-// Copyright 2018 The dexon-consensus Authors
-// This file is part of the dexon-consensus library.
-//
-// The dexon-consensus library is free software: you can redistribute it
-// and/or modify it under the terms of the GNU Lesser General Public License as
-// published by the Free Software Foundation, either version 3 of the License,
-// or (at your option) any later version.
-//
-// The dexon-consensus library is distributed in the hope that it will be
-// useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
-// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
-// General Public License for more details.
-//
-// You should have received a copy of the GNU Lesser General Public License
-// along with the dexon-consensus library. If not, see
-// <http://www.gnu.org/licenses/>.
-
-package core
-
-import (
-	"github.com/dexon-foundation/dexon-consensus/common"
-	"github.com/dexon-foundation/dexon-consensus/core/crypto"
-	"github.com/dexon-foundation/dexon-consensus/core/types"
-	typesDKG "github.com/dexon-foundation/dexon-consensus/core/types/dkg"
-)
-
-// Authenticator verify data owner.
-type Authenticator struct {
-	prvKey     crypto.PrivateKey
-	pubKey     crypto.PublicKey
-	proposerID types.NodeID
-}
-
-// NewAuthenticator constructs an Authenticator instance.
-func NewAuthenticator(prvKey crypto.PrivateKey) (auth *Authenticator) {
-	auth = &Authenticator{
-		prvKey: prvKey,
-		pubKey: prvKey.PublicKey(),
-	}
-	auth.proposerID = types.NewNodeID(auth.pubKey)
-	return
-}
-
-// SignBlock signs a types.Block.
-func (au *Authenticator) SignBlock(b *types.Block) (err error) {
-	b.ProposerID = au.proposerID
-	b.PayloadHash = crypto.Keccak256Hash(b.Payload)
-	if b.Hash, err = hashBlock(b); err != nil {
-		return
-	}
-	if b.Signature, err = au.prvKey.Sign(b.Hash); err != nil {
-		return
-	}
-	return
-}
-
-// SignVote signs a types.Vote.
-func (au *Authenticator) SignVote(v *types.Vote) (err error) {
-	v.ProposerID = au.proposerID
-	v.Signature, err = au.prvKey.Sign(hashVote(v))
-	return
-}
-
-// SignCRS signs CRS signature of types.Block.
-func (au *Authenticator) SignCRS(b *types.Block, crs common.Hash) (err error) {
-	if b.ProposerID != au.proposerID {
-		err = ErrInvalidProposerID
-		return
-	}
-	b.CRSSignature, err = au.prvKey.Sign(hashCRS(b, crs))
-	return
-}
-
-// SignDKGComplaint signs a DKG complaint.
-func (au *Authenticator) SignDKGComplaint(
-	complaint *typesDKG.Complaint) (err error) {
-	complaint.ProposerID = au.proposerID
-	complaint.Signature, err = au.prvKey.Sign(hashDKGComplaint(complaint))
-	return
-}
-
-// SignDKGMasterPublicKey signs a DKG master public key.
-func (au *Authenticator) SignDKGMasterPublicKey(
-	mpk *typesDKG.MasterPublicKey) (err error) {
-	mpk.ProposerID = au.proposerID
-	mpk.Signature, err = au.prvKey.Sign(hashDKGMasterPublicKey(mpk))
-	return
-}
-
-// SignDKGPrivateShare signs a DKG private share.
-func (au *Authenticator) SignDKGPrivateShare(
-	prvShare *typesDKG.PrivateShare) (err error) {
-	prvShare.ProposerID = au.proposerID
-	prvShare.Signature, err = au.prvKey.Sign(hashDKGPrivateShare(prvShare))
-	return
-}
-
-// SignDKGPartialSignature signs a DKG partial signature.
-func (au *Authenticator) SignDKGPartialSignature(
-	pSig *typesDKG.PartialSignature) (err error) {
-	pSig.ProposerID = au.proposerID
-	pSig.Signature, err = au.prvKey.Sign(hashDKGPartialSignature(pSig))
-	return
-}
-
-// SignDKGMPKReady signs a DKG ready message.
-func (au *Authenticator) SignDKGMPKReady(
-	ready *typesDKG.MPKReady) (err error) {
-	ready.ProposerID = au.proposerID
-	ready.Signature, err = au.prvKey.Sign(hashDKGMPKReady(ready))
-	return
-}
-
-// SignDKGFinalize signs a DKG finalize message.
-func (au *Authenticator) SignDKGFinalize(
-	final *typesDKG.Finalize) (err error) {
-	final.ProposerID = au.proposerID
-	final.Signature, err = au.prvKey.Sign(hashDKGFinalize(final))
-	return
-}
-
-// VerifyBlock verifies the signature of types.Block.
-func (au *Authenticator) VerifyBlock(b *types.Block) (err error) {
-	payloadHash := crypto.Keccak256Hash(b.Payload)
-	if payloadHash != b.PayloadHash {
-		err = ErrIncorrectHash
-		return
-	}
-	hash, err := hashBlock(b)
-	if err != nil {
-		return
-	}
-	if hash != b.Hash {
-		err = ErrIncorrectHash
-		return
-	}
-	pubKey, err := crypto.SigToPub(b.Hash, b.Signature)
-	if err != nil {
-		return
-	}
-	if !b.ProposerID.Equal(types.NewNodeID(pubKey)) {
-		err = ErrIncorrectSignature
-		return
-	}
-	return
-}
-
-// VerifyVote verifies the signature of types.Vote.
-func (au *Authenticator) VerifyVote(v *types.Vote) (bool, error) {
-	return verifyVoteSignature(v)
-}
-
-// VerifyCRS verifies the CRS signature of types.Block.
-func (au *Authenticator) VerifyCRS(b *types.Block, crs common.Hash) (bool, error) {
-	return verifyCRSSignature(b, crs)
-}