all: Rename crypto.Sha3{,Hash}() to crypto.Keccak256{,Hash}()

As we aren't really using the standarized SHA-3

common/compiler/solidity.go

@@ -220,7 +220,7 @@ func SaveInfo(info *ContractInfo, filename string) (contenthash common.Hash, err
 	if err != nil {
 		return
 	}
-	contenthash = common.BytesToHash(crypto.Sha3(infojson))
+	contenthash = common.BytesToHash(crypto.Keccak256(infojson))
 	err = ioutil.WriteFile(filename, infojson, 0600)
 	return
 }

common/httpclient/httpclient.go

@@ -74,7 +74,7 @@ func (self *HTTPClient) GetAuthContent(uri string, hash common.Hash) ([]byte, er
 	}
 
 	// check hash to authenticate content
-	chash := crypto.Sha3Hash(content)
+	chash := crypto.Keccak256Hash(content)
 	if chash != hash {
 		return nil, fmt.Errorf("content hash mismatch %x != %x (exp)", hash[:], chash[:])
 	}

common/httpclient/httpclient_test.go

@@ -36,7 +36,7 @@ func TestGetAuthContent(t *testing.T) {
 	client := New(dir)
 
 	text := "test"
-	hash := crypto.Sha3Hash([]byte(text))
+	hash := crypto.Keccak256Hash([]byte(text))
 	if err := ioutil.WriteFile(path.Join(dir, "test.content"), []byte(text), os.ModePerm); err != nil {
 		t.Fatal("could not write test file", err)
 	}

common/natspec/natspec.go

@@ -115,7 +115,7 @@ func FetchDocsForContract(contractAddress string, xeth *xeth.XEth, client *httpc
 		err = fmt.Errorf("contract (%v) not found", contractAddress)
 		return
 	}
-	codehash := common.BytesToHash(crypto.Sha3(codeb))
+	codehash := common.BytesToHash(crypto.Keccak256(codeb))
 	// set up nameresolver with natspecreg + urlhint contract addresses
 	reg := registrar.New(xeth)
 
@@ -197,7 +197,7 @@ type userDoc struct {
 func (self *NatSpec) makeAbi2method(abiKey [8]byte) (meth *method) {
 	for signature, m := range self.userDoc.Methods {
 		name := strings.Split(signature, "(")[0]
-		hash := []byte(common.Bytes2Hex(crypto.Sha3([]byte(signature))))
+		hash := []byte(common.Bytes2Hex(crypto.Keccak256([]byte(signature))))
 		var key [8]byte
 		copy(key[:], hash[:8])
 		if bytes.Equal(key[:], abiKey[:]) {

common/natspec/natspec_e2e_test.go

@@ -238,11 +238,11 @@ func TestNatspecE2E(t *testing.T) {
 	// create a contractInfo file (mock cloud-deployed contract metadocs)
 	// incidentally this is the info for the HashReg contract itself
 	ioutil.WriteFile("/tmp/"+testFileName, []byte(testContractInfo), os.ModePerm)
-	dochash := crypto.Sha3Hash([]byte(testContractInfo))
+	dochash := crypto.Keccak256Hash([]byte(testContractInfo))
 
 	// take the codehash for the contract we wanna test
 	codeb := tf.xeth.CodeAtBytes(registrar.HashRegAddr)
-	codehash := crypto.Sha3Hash(codeb)
+	codehash := crypto.Keccak256Hash(codeb)
 
 	reg := registrar.New(tf.xeth)
 	_, err := reg.SetHashToHash(addr, codehash, dochash)

common/registrar/ethreg/api.go

@@ -86,7 +86,7 @@ func (api *PrivateRegistarAPI) Register(sender common.Address, addr common.Addre
 	}
 
 	codeb := state.GetCode(addr)
-	codeHash := common.BytesToHash(crypto.Sha3(codeb))
+	codeHash := common.BytesToHash(crypto.Keccak256(codeb))
 	contentHash := common.HexToHash(contentHashHex)
 
 	_, err = registrar.New(api.be).SetHashToHash(sender, codeHash, contentHash)

common/registrar/registrar.go

@@ -68,7 +68,7 @@ const (
 )
 
 func abiSignature(s string) string {
-	return common.ToHex(crypto.Sha3([]byte(s))[:4])
+	return common.ToHex(crypto.Keccak256([]byte(s))[:4])
 }
 
 var (
@@ -401,7 +401,7 @@ func storageMapping(addr, key []byte) []byte {
 	data := make([]byte, 64)
 	copy(data[0:32], key[0:32])
 	copy(data[32:64], addr[0:32])
-	sha := crypto.Sha3(data)
+	sha := crypto.Keccak256(data)
 	return sha
 }
 

common/registrar/registrar_test.go

@@ -31,7 +31,7 @@ type testBackend struct {
 var (
 	text     = "test"
 	codehash = common.StringToHash("1234")
-	hash     = common.BytesToHash(crypto.Sha3([]byte(text)))
+	hash     = common.BytesToHash(crypto.Keccak256([]byte(text)))
 	url      = "bzz://bzzhash/my/path/contr.act"
 )