1 files changed, 0 insertions, 80 deletions
diff --git a/vendor/github.com/byzantine-lab/dexon-consensus/core/crypto/utils.go b/vendor/github.com/byzantine-lab/dexon-consensus/core/crypto/utils.go
deleted file mode 100644
index 744be3e5f..000000000
--- a/vendor/github.com/byzantine-lab/dexon-consensus/core/crypto/utils.go
+++ /dev/null
@@ -1,80 +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 crypto
-
-import (
-	"encoding/hex"
-	"fmt"
-
-	"github.com/byzantine-lab/go-tangerine/crypto"
-
-	"github.com/byzantine-lab/dexon-consensus/common"
-)
-
-var (
-	// ErrSigToPubTypeNotFound is reported if the type is already used.
-	ErrSigToPubTypeNotFound = fmt.Errorf("type of sigToPub is not found")
-
-	// ErrSigToPubTypeAlreadyExist is reported if the type is already used.
-	ErrSigToPubTypeAlreadyExist = fmt.Errorf("type of sigToPub is already exist")
-)
-
-// SigToPubFn is a function to recover public key from signature.
-type SigToPubFn func(hash common.Hash, signature Signature) (PublicKey, error)
-
-var sigToPubCB map[string]SigToPubFn
-
-func init() {
-	sigToPubCB = make(map[string]SigToPubFn)
-}
-
-// Keccak256Hash calculates and returns the Keccak256 hash of the input data,
-// converting it to an internal Hash data structure.
-func Keccak256Hash(data ...[]byte) (h common.Hash) {
-	return common.Hash(crypto.Keccak256Hash(data...))
-}
-
-// Clone returns a deep copy of a signature.
-func (sig Signature) Clone() Signature {
-	return Signature{
-		Type:      sig.Type,
-		Signature: sig.Signature[:],
-	}
-}
-
-func (sig Signature) String() string {
-	return hex.EncodeToString([]byte(sig.Signature[:]))
-}
-
-// RegisterSigToPub registers a sigToPub function of type.
-func RegisterSigToPub(sigType string, sigToPub SigToPubFn) error {
-	if _, exist := sigToPubCB[sigType]; exist {
-		return ErrSigToPubTypeAlreadyExist
-	}
-	sigToPubCB[sigType] = sigToPub
-	return nil
-}
-
-// SigToPub recovers public key from signature.
-func SigToPub(hash common.Hash, signature Signature) (PublicKey, error) {
-	sigToPub, exist := sigToPubCB[signature.Type]
-	if !exist {
-		return nil, ErrSigToPubTypeNotFound
-	}
-	return sigToPub(hash, signature)
-}