Remove diode_go_client/crypto/sha3

After add -race flag when test, got this error in old sha3 library:
x/crypto: fatal error: checkptr: unsafe pointer conversion (golang/go#37644)
Since they have already fixed the issue, it's better to switch to official crypto library.

Makefile

@@ -26,7 +26,7 @@ all: $(BINS)
 
 .PHONY: test
 test:
-	go test $(TESTS)
+	go test -race $(TESTS)
 
 .PHONY: lint
 lint:

contract/dns.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 
 	"github.com/diodechain/diode_go_client/accounts/abi"
-	"github.com/diodechain/diode_go_client/crypto/sha3"
+	"github.com/diodechain/diode_go_client/crypto"
 	"github.com/diodechain/diode_go_client/util"
 )
 
@@ -50,14 +50,9 @@ func (dnsContract *DNSContract) Register(_name string, _record Address) (data []
 
 // DNSMetaKey returns storage key of Meta entry (destination, owner, name)
 func DNSMetaKey(name string) []byte {
-	hash := sha3.NewKeccak256()
-	hash.Write([]byte(name))
-	key := hash.Sum(nil)
-
+	key := crypto.Sha3Hash([]byte(name))
 	index := util.IntToBytes(DNSNamesIndex)
 	padIndex := util.PaddingBytesPrefix(index, 0, 32)
 	padKey := util.PaddingBytesPrefix(key, 0, 32)
-	hash = sha3.NewKeccak256()
-	hash.Write(append(padKey, padIndex...))
-	return hash.Sum(nil)
+	return crypto.Sha3Hash(append(padKey, padIndex...))
 }

contract/fleet.go

@@ -7,7 +7,7 @@ import (
 	"strings"
 
 	"github.com/diodechain/diode_go_client/accounts/abi"
-	"github.com/diodechain/diode_go_client/crypto/sha3"
+	"github.com/diodechain/diode_go_client/crypto"
 	"github.com/diodechain/diode_go_client/util"
 )
 
@@ -79,9 +79,7 @@ func DeviceWhitelistKey(addr Address) []byte {
 	index := util.IntToBytes(DeviceWhitelistIndex)
 	padIndex := util.PaddingBytesPrefix(index, 0, 32)
 	padAddr := util.PaddingBytesPrefix(addr[:], 0, 32)
-	hash := sha3.NewKeccak256()
-	hash.Write(append(padAddr, padIndex...))
-	return hash.Sum(nil)
+	return crypto.Sha3Hash(append(padAddr, padIndex...))
 }
 
 // AccessWhitelistKey returns storage key of access whitelist of givin address
@@ -90,10 +88,6 @@ func AccessWhitelistKey(deviceAddr Address, clientAddr Address) []byte {
 	padIndex := util.PaddingBytesPrefix(index, 0, 32)
 	padDeviceAddr := util.PaddingBytesPrefix(deviceAddr[:], 0, 32)
 	padClientAddr := util.PaddingBytesPrefix(clientAddr[:], 0, 32)
-	hash := sha3.NewKeccak256()
-	hash.Write(append(padDeviceAddr, padIndex...))
-	baseKey := hash.Sum(nil)
-	hash = sha3.NewKeccak256()
-	hash.Write(append(padClientAddr, baseKey...))
-	return hash.Sum(nil)
+	baseKey := crypto.Sha3Hash(append(padDeviceAddr, padIndex...))
+	return crypto.Sha3Hash(append(padClientAddr, baseKey...))
 }

contract/registry.go

@@ -4,7 +4,7 @@
 package contract
 
 import (
-	"github.com/diodechain/diode_go_client/crypto/sha3"
+	"github.com/diodechain/diode_go_client/crypto"
 	"github.com/diodechain/diode_go_client/util"
 )
 
@@ -24,7 +24,5 @@ func ContractStakeKey(addr []byte) []byte {
 	index := util.IntToBytes(ContractStakeIndex)
 	padIndex := util.PaddingBytesPrefix(index, 0, 32)
 	padAddr := util.PaddingBytesPrefix(addr, 0, 32)
-	hash := sha3.NewKeccak256()
-	hash.Write(append(padAddr, padIndex...))
-	return hash.Sum(nil)
+	return crypto.Sha3Hash(append(padAddr, padIndex...))
 }

crypto/crypto.go

@@ -12,7 +12,7 @@ import (
 	"math/big"
 
 	"github.com/diodechain/diode_go_client/crypto/secp256k1"
-	"github.com/diodechain/diode_go_client/crypto/sha3"
+	"golang.org/x/crypto/sha3"
 )
 
 const ecPrivKeyVersion = 1
@@ -165,7 +165,7 @@ func Sha256(data []byte) []byte {
 
 // Sha3Hash the data
 func Sha3Hash(data []byte) []byte {
-	hash := sha3.NewKeccak256()
+	hash := sha3.NewLegacyKeccak256()
 	hash.Write(data)
 	return hash.Sum(nil)
 }