diff options
Diffstat (limited to 'vendor/github.com/dexon-foundation/dexon-consensus-core/core/authenticator.go')
-rw-r--r-- | vendor/github.com/dexon-foundation/dexon-consensus-core/core/authenticator.go | 148 |
1 files changed, 0 insertions, 148 deletions
diff --git a/vendor/github.com/dexon-foundation/dexon-consensus-core/core/authenticator.go b/vendor/github.com/dexon-foundation/dexon-consensus-core/core/authenticator.go deleted file mode 100644 index 5d176cfee..000000000 --- a/vendor/github.com/dexon-foundation/dexon-consensus-core/core/authenticator.go +++ /dev/null @@ -1,148 +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 -} - -// 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) -} |