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Merge pull request #2242 from jimenezrick/upstream-crypto

Browse Source 
Closes #2241: Use Keccak-256 from golang.org/x/crypto/sha3 and mention explicitly
This commit is contained in:
Jeffrey Wilcke 2016-02-24 12:57:57 +01:00
commit 483feb0d3f
68 changed files with 925 additions and 633 deletions
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10
accounts/abi/abi_test.go
View File

@ -244,7 +244,7 @@ func TestMethodSignature(t *testing.T) {
t.Error("signature mismatch", exp, "!=", m.Sig())
}
idexp := crypto.Sha3([]byte(exp))[:4]
idexp := crypto.Keccak256([]byte(exp))[:4]
if !bytes.Equal(m.Id(), idexp) {
t.Errorf("expected ids to match %x != %x", m.Id(), idexp)
}
@ -264,7 +264,7 @@ func TestPack(t *testing.T) {
t.FailNow()
}
sig := crypto.Sha3([]byte("foo(uint32)"))[:4]
sig := crypto.Keccak256([]byte("foo(uint32)"))[:4]
sig = append(sig, make([]byte, 32)...)
sig[35] = 10
@ -286,7 +286,7 @@ func TestMultiPack(t *testing.T) {
t.FailNow()
}
sig := crypto.Sha3([]byte("bar(uint32,uint16)"))[:4]
sig := crypto.Keccak256([]byte("bar(uint32,uint16)"))[:4]
sig = append(sig, make([]byte, 64)...)
sig[35] = 10
sig[67] = 11
@ -309,7 +309,7 @@ func TestPackSlice(t *testing.T) {
t.FailNow()
}
sig := crypto.Sha3([]byte("slice(uint32[2])"))[:4]
sig := crypto.Keccak256([]byte("slice(uint32[2])"))[:4]
sig = append(sig, make([]byte, 64)...)
sig[35] = 1
sig[67] = 2
@ -332,7 +332,7 @@ func TestPackSliceBig(t *testing.T) {
t.FailNow()
}
sig := crypto.Sha3([]byte("slice256(uint256[2])"))[:4]
sig := crypto.Keccak256([]byte("slice256(uint256[2])"))[:4]
sig = append(sig, make([]byte, 64)...)
sig[35] = 1
sig[67] = 2

2
accounts/abi/event.go
View File

@ -40,5 +40,5 @@ func (e Event) Id() common.Hash {
types[i] = input.Type.String()
i++
}
return common.BytesToHash(crypto.Sha3([]byte(fmt.Sprintf("%v(%v)", e.Name, strings.Join(types, ",")))))
return common.BytesToHash(crypto.Keccak256([]byte(fmt.Sprintf("%v(%v)", e.Name, strings.Join(types, ",")))))
}

4
accounts/abi/event_test.go
View File

@ -19,8 +19,8 @@ func TestEventId(t *testing.T) {
{ "type" : "event", "name" : "check", "inputs": [{ "name" : "t", "type": "address" }, { "name": "b", "type": "uint256" }] }
]`,
expectations: map[string]common.Hash{
"balance": crypto.Sha3Hash([]byte("balance(uint256)")),
"check": crypto.Sha3Hash([]byte("check(address,uint256)")),
"balance": crypto.Keccak256Hash([]byte("balance(uint256)")),
"check": crypto.Keccak256Hash([]byte("check(address,uint256)")),
},
},
}

2
accounts/abi/method.go
View File

@ -72,5 +72,5 @@ func (m Method) String() string {
}
func (m Method) Id() []byte {
return crypto.Sha3([]byte(m.Sig()))[:4]
return crypto.Keccak256([]byte(m.Sig()))[:4]
}

2
cmd/geth/js_test.go
View File

@ -396,7 +396,7 @@ multiply7 = Multiply7.at(contractaddress);
if sol != nil && solcVersion != sol.Version() {
modContractInfo := versionRE.ReplaceAll(contractInfo, []byte(`"compilerVersion":"`+sol.Version()+`"`))
fmt.Printf("modified contractinfo:\n%s\n", modContractInfo)
contentHash = `"` + common.ToHex(crypto.Sha3([]byte(modContractInfo))) + `"`
contentHash = `"` + common.ToHex(crypto.Keccak256([]byte(modContractInfo))) + `"`
}
if checkEvalJSON(t, repl, `filename = "/tmp/info.json"`, `"/tmp/info.json"`) != nil {
return

18
common/bytes.go
View File

@ -48,22 +48,6 @@ func FromHex(s string) []byte {
return nil
}
type Bytes []byte
func (self Bytes) String() string {
return string(self)
}
func DeleteFromByteSlice(s [][]byte, hash []byte) [][]byte {
for i, h := range s {
if bytes.Compare(h, hash) == 0 {
return append(s[:i:i], s[i+1:]...)
}
}
return s
}
// Number to bytes
//
// Returns the number in bytes with the specified base
@ -154,7 +138,6 @@ func Hex2Bytes(str string) []byte {
}
func Hex2BytesFixed(str string, flen int) []byte {
h, _ := hex.DecodeString(str)
if len(h) == flen {
return h
@ -167,7 +150,6 @@ func Hex2BytesFixed(str string, flen int) []byte {
return hh
}
}
}
func StringToByteFunc(str string, cb func(str string) []byte) (ret []byte) {

20
common/bytes_test.go
View File

@ -27,26 +27,6 @@ type BytesSuite struct{}
var _ = checker.Suite(&BytesSuite{})
func (s *BytesSuite) TestByteString(c *checker.C) {
var data Bytes
data = []byte{102, 111, 111}
exp := "foo"
res := data.String()
c.Assert(res, checker.Equals, exp)
}
/*
func (s *BytesSuite) TestDeleteFromByteSlice(c *checker.C) {
data := []byte{1, 2, 3, 4}
slice := []byte{1, 2, 3, 4}
exp := []byte{1, 4}
res := DeleteFromByteSlice(data, slice)
c.Assert(res, checker.DeepEquals, exp)
}
*/
func (s *BytesSuite) TestNumberToBytes(c *checker.C) {
// data1 := int(1)
// res1 := NumberToBytes(data1, 16)

2
common/compiler/solidity.go
View File

@ -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
}

2
common/httpclient/httpclient.go
View File

@ -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[:])
}

2
common/httpclient/httpclient_test.go
View File

@ -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)
}

4
common/natspec/natspec.go
View File

@ -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[:]) {

4
common/natspec/natspec_e2e_test.go
View File

@ -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)

253
common/natspec/natspec_e2e_test.go.orig
View File

@ -1,253 +0,0 @@
package natspec
import (
"fmt"
"io/ioutil"
"os"
"strings"
"testing"
"github.com/ethereum/go-ethereum/accounts"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/common/docserver"
"github.com/ethereum/go-ethereum/common/registrar"
"github.com/ethereum/go-ethereum/core"
"github.com/ethereum/go-ethereum/core/state"
"github.com/ethereum/go-ethereum/crypto"
"github.com/ethereum/go-ethereum/eth"
xe "github.com/ethereum/go-ethereum/xeth"
)
const (
testBalance = "10000000000000000000"
testFileName = "long_file_name_for_testing_registration_of_URLs_longer_than_32_bytes.content"
testNotice = "Register key `utils.toHex(_key)` <- content `utils.toHex(_content)`"
testExpNotice = "Register key 0xadd1a7d961cff0242089674ec2ef6fca671ab15e1fe80e38859fc815b98d88ab <- content 0xb3a2dea218de5d8bbe6c4645aadbf67b5ab00ecb1a9ec95dbdad6a0eed3e41a7"
testExpNotice2 = `About to submit transaction (NatSpec notice error: abi key does not match any method): {"params":[{"to":"%s","data": "0x31e12c20"}]}`
testExpNotice3 = `About to submit transaction (no NatSpec info found for contract: content hash not found for '0x1392c62d05b2d149e22a339c531157ae06b44d39a674cce500064b12b9aeb019'): {"params":[{"to":"%s","data": "0x300a3bbfb3a2dea218de5d8bbe6c4645aadbf67b5ab00ecb1a9ec95dbdad6a0eed3e41a7000000000000000000000000000000000000000000000000000000000000000000000000000000000000000066696c653a2f2f2f746573742e636f6e74656e74"}]}`
)
const (
testUserDoc = `
{
"methods": {
"register(uint256,uint256)": {
"notice": "` + testNotice + `"
}
},
"invariants": [
{ "notice": "" }
],
"construction": [
{ "notice": "" }
]
}
`
testAbiDefinition = `
[{
"name": "register",
"constant": false,
"type": "function",
"inputs": [{
"name": "_key",
"type": "uint256"
}, {
"name": "_content",
"type": "uint256"
}],
"outputs": []
}]
`
testContractInfo = `
{
"userDoc": ` + testUserDoc + `,
"abiDefinition": ` + testAbiDefinition + `
}
`
)
type testFrontend struct {
t *testing.T
ethereum *eth.Ethereum
xeth *xe.XEth
coinbase common.Address
stateDb *state.StateDB
txc uint64
lastConfirm string
wantNatSpec bool
}
func (self *testFrontend) UnlockAccount(acc []byte) bool {
self.ethereum.AccountManager().Unlock(common.BytesToAddress(acc), "password")
return true
}
func (self *testFrontend) ConfirmTransaction(tx string) bool {
if self.wantNatSpec {
ds := docserver.New("/tmp/")
self.lastConfirm = GetNotice(self.xeth, tx, ds)
}
return true
}
func testEth(t *testing.T) (ethereum *eth.Ethereum, err error) {
os.RemoveAll("/tmp/eth-natspec/")
err = os.MkdirAll("/tmp/eth-natspec/keystore", os.ModePerm)
if err != nil {
panic(err)
}
// create a testAddress
ks := crypto.NewKeyStorePassphrase("/tmp/eth-natspec/keystore", crypto.LightScryptN, crypto.LightScryptP)
am := accounts.NewManager(ks)
testAccount, err := am.NewAccount("password")
if err != nil {
panic(err)
}
testAddress := strings.TrimPrefix(testAccount.Address.Hex(), "0x")
// set up mock genesis with balance on the testAddress
core.GenesisAccounts = []byte(`{
"` + testAddress + `": {"balance": "` + testBalance + `"}
}`)
// only use minimalistic stack with no networking
ethereum, err = eth.New(&eth.Config{
DataDir: "/tmp/eth-natspec",
AccountManager: am,
MaxPeers: 0,
})
if err != nil {
panic(err)
}
return
}
func testInit(t *testing.T) (self *testFrontend) {
// initialise and start minimal ethereum stack
ethereum, err := testEth(t)
if err != nil {
t.Errorf("error creating ethereum: %v", err)
return
}
err = ethereum.Start()
if err != nil {
t.Errorf("error starting ethereum: %v", err)
return
}
// mock frontend
self = &testFrontend{t: t, ethereum: ethereum}
self.xeth = xe.New(ethereum, self)
addr, _ := ethereum.Etherbase()
self.coinbase = addr
self.stateDb = self.ethereum.ChainManager().State().Copy()
// initialise the registry contracts
reg := registrar.New(self.xeth)
err = reg.SetHashReg("", addr)
if err != nil {
t.Errorf("error creating HashReg: %v", err)
}
err = reg.SetUrlHint("", addr)
if err != nil {
t.Errorf("error creating UrlHint: %v", err)
}
self.applyTxs()
return
}
// this is needed for transaction to be applied to the state in testing
// the heavy lifing is done in XEth.ApplyTestTxs
// this is fragile,
// and does process leaking since xeth loops cannot quit safely
// should be replaced by proper mining with testDAG for easy full integration tests
func (self *testFrontend) applyTxs() {
self.txc, self.xeth = self.xeth.ApplyTestTxs(self.stateDb, self.coinbase, self.txc)
return
}
// end to end test
func TestNatspecE2E(t *testing.T) {
t.Skip()
tf := testInit(t)
defer tf.ethereum.Stop()
// create a contractInfo file (mock cloud-deployed contract metadocs)
// incidentally this is the info for the registry contract itself
ioutil.WriteFile("/tmp/"+testFileName, []byte(testContractInfo), os.ModePerm)
dochash := common.BytesToHash(crypto.Sha3([]byte(testContractInfo)))
// take the codehash for the contract we wanna test
// codehex := tf.xeth.CodeAt(registar.HashRegAddr)
codeb := tf.xeth.CodeAtBytes(registrar.HashRegAddr)
codehash := common.BytesToHash(crypto.Sha3(codeb))
// use resolver to register codehash->dochash->url
// test if globalregistry works
// registrar.HashRefAddr = "0x0"
// registrar.UrlHintAddr = "0x0"
reg := registrar.New(tf.xeth)
_, err := reg.SetHashToHash(tf.coinbase, codehash, dochash)
if err != nil {
t.Errorf("error registering: %v", err)
}
_, err = reg.SetUrlToHash(tf.coinbase, dochash, "file:///"+testFileName)
if err != nil {
t.Errorf("error registering: %v", err)
}
// apply txs to the state
tf.applyTxs()
// NatSpec info for register method of HashReg contract installed
// now using the same transactions to check confirm messages
tf.wantNatSpec = true // this is set so now the backend uses natspec confirmation
_, err = reg.SetHashToHash(tf.coinbase, codehash, dochash)
if err != nil {
t.Errorf("error calling contract registry: %v", err)
}
fmt.Printf("GlobalRegistrar: %v, HashReg: %v, UrlHint: %v\n", registrar.GlobalRegistrarAddr, registrar.HashRegAddr, registrar.UrlHintAddr)
if tf.lastConfirm != testExpNotice {
t.Errorf("Wrong confirm message. expected '%v', got '%v'", testExpNotice, tf.lastConfirm)
}
// test unknown method
exp := fmt.Sprintf(testExpNotice2, registrar.HashRegAddr)
_, err = reg.SetOwner(tf.coinbase)
if err != nil {
t.Errorf("error setting owner: %v", err)
}
if tf.lastConfirm != exp {
t.Errorf("Wrong confirm message, expected '%v', got '%v'", exp, tf.lastConfirm)
}
// test unknown contract
exp = fmt.Sprintf(testExpNotice3, registrar.UrlHintAddr)
_, err = reg.SetUrlToHash(tf.coinbase, dochash, "file:///test.content")
if err != nil {
t.Errorf("error registering: %v", err)
}
if tf.lastConfirm != exp {
t.Errorf("Wrong confirm message, expected '%v', got '%v'", exp, tf.lastConfirm)
}
}

2
common/registrar/ethreg/api.go
View File

@ -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)

4
common/registrar/registrar.go
View File

@ -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
}

2
common/registrar/registrar_test.go
View File

@ -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"
)

4
compression/rle/read_write.go
View File

@ -31,8 +31,8 @@ const (
tokenToken = 0xff
)
var empty = crypto.Sha3([]byte(""))
var emptyList = crypto.Sha3([]byte{0x80})
var empty = crypto.Keccak256([]byte(""))
var emptyList = crypto.Keccak256([]byte{0x80})
func Decompress(dat []byte) ([]byte, error) {
buf := new(bytes.Buffer)

16
compression/rle/read_write_test.go
View File

@ -67,8 +67,8 @@ func (s *CompressionRleSuite) TestDecompressSimple(c *checker.C) {
// }
// var exp []byte
// exp = append(exp, crypto.Sha3([]byte(""))...)
// exp = append(exp, crypto.Sha3([]byte{0x80})...)
// exp = append(exp, crypto.Keccak256([]byte(""))...)
// exp = append(exp, crypto.Keccak256([]byte{0x80})...)
// exp = append(exp, make([]byte, 10)...)
// if bytes.Compare(res, res) != 0 {
@ -82,12 +82,12 @@ func (s *CompressionRleSuite) TestDecompressSimple(c *checker.C) {
// t.Error("5 * zero", res)
// }
// res = Compress(crypto.Sha3([]byte("")))
// res = Compress(crypto.Keccak256([]byte("")))
// if bytes.Compare(res, []byte{token, emptyShaToken}) != 0 {
// t.Error("empty sha", res)
// }
// res = Compress(crypto.Sha3([]byte{0x80}))
// res = Compress(crypto.Keccak256([]byte{0x80}))
// if bytes.Compare(res, []byte{token, emptyListShaToken}) != 0 {
// t.Error("empty list sha", res)
// }
@ -100,8 +100,8 @@ func (s *CompressionRleSuite) TestDecompressSimple(c *checker.C) {
// func TestCompressMulti(t *testing.T) {
// in := []byte{0, 0, 0, 0, 0}
// in = append(in, crypto.Sha3([]byte(""))...)
// in = append(in, crypto.Sha3([]byte{0x80})...)
// in = append(in, crypto.Keccak256([]byte(""))...)
// in = append(in, crypto.Keccak256([]byte{0x80})...)
// in = append(in, token)
// res := Compress(in)
@ -116,8 +116,8 @@ func (s *CompressionRleSuite) TestDecompressSimple(c *checker.C) {
// for i := 0; i < 20; i++ {
// in = append(in, []byte{0, 0, 0, 0, 0}...)
// in = append(in, crypto.Sha3([]byte(""))...)
// in = append(in, crypto.Sha3([]byte{0x80})...)
// in = append(in, crypto.Keccak256([]byte(""))...)
// in = append(in, crypto.Keccak256([]byte{0x80})...)
// in = append(in, []byte{123, 2, 19, 89, 245, 254, 255, token, 98, 233}...)
// in = append(in, token)
// }

4
core/state/state_object.go
View File

@ -30,7 +30,7 @@ import (
"github.com/ethereum/go-ethereum/trie"
)
var emptyCodeHash = crypto.Sha3(nil)
var emptyCodeHash = crypto.Keccak256(nil)
type Code []byte
@ -225,7 +225,7 @@ func (self *StateObject) Code() []byte {
func (self *StateObject) SetCode(code []byte) {
self.code = code
self.codeHash = crypto.Sha3(code)
self.codeHash = crypto.Keccak256(code)
self.dirty = true
}

2
core/types/bloom9.go
View File

@ -101,7 +101,7 @@ func LogsBloom(logs vm.Logs) *big.Int {
}
func bloom9(b []byte) *big.Int {
b = crypto.Sha3(b[:])
b = crypto.Keccak256(b[:])
r := new(big.Int)

2
core/types/bloom9_test.go
View File

@ -73,7 +73,7 @@ func TestBloom9(t *testing.T) {
func TestAddress(t *testing.T) {
block := &Block{}
block.Coinbase = common.Hex2Bytes("22341ae42d6dd7384bc8584e50419ea3ac75b83f")
fmt.Printf("%x\n", crypto.Sha3(block.Coinbase))
fmt.Printf("%x\n", crypto.Keccak256(block.Coinbase))
bin := CreateBloom(block)
fmt.Printf("bin = %x\n", common.LeftPadBytes(bin, 64))

2
core/types/transaction.go
View File

@ -202,7 +202,7 @@ func doFrom(tx *Transaction, homestead bool) (common.Address, error) {
return common.Address{}, err
}
var addr common.Address
copy(addr[:], crypto.Sha3(pubkey[1:])[12:])
copy(addr[:], crypto.Keccak256(pubkey[1:])[12:])
tx.from.Store(addr)
return addr, nil
}

2
core/vm/contracts.go
View File

@ -111,7 +111,7 @@ func ecrecoverFunc(in []byte) []byte {
}
// the first byte of pubkey is bitcoin heritage
return common.LeftPadBytes(crypto.Sha3(pubKey[1:])[12:], 32)
return common.LeftPadBytes(crypto.Keccak256(pubKey[1:])[12:], 32)
}
func memCpy(in []byte) []byte {

2
core/vm/instructions.go
View File

@ -316,7 +316,7 @@ func opMulmod(instr instruction, pc *uint64, env Environment, contract *Contract
func opSha3(instr instruction, pc *uint64, env Environment, contract *Contract, memory *Memory, stack *stack) {
offset, size := stack.pop(), stack.pop()
hash := crypto.Sha3(memory.Get(offset.Int64(), size.Int64()))
hash := crypto.Keccak256(memory.Get(offset.Int64(), size.Int64()))
stack.push(common.BytesToBig(hash))
}

2
core/vm/jit.go
View File

@ -96,7 +96,7 @@ type Program struct {
// NewProgram returns a new JIT program
func NewProgram(code []byte) *Program {
program := &Program{
Id: crypto.Sha3Hash(code),
Id: crypto.Keccak256Hash(code),
mapping: make(map[uint64]uint64),
destinations: make(map[uint64]struct{}),
code: code,

2
core/vm/jit_test.go
View File

@ -189,7 +189,7 @@ func (self *Env) Db() Database { return nil }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }
func (self *Env) VmType() Type { return StdVmTy }
func (self *Env) GetHash(n uint64) common.Hash {
return common.BytesToHash(crypto.Sha3([]byte(big.NewInt(int64(n)).String())))
return common.BytesToHash(crypto.Keccak256([]byte(big.NewInt(int64(n)).String())))
}
func (self *Env) AddLog(log *Log) {
}

2
core/vm/runtime/runtime.go
View File

@ -67,7 +67,7 @@ func setDefaults(cfg *Config) {
}
if cfg.GetHashFn == nil {
cfg.GetHashFn = func(n uint64) common.Hash {
return common.BytesToHash(crypto.Sha3([]byte(new(big.Int).SetUint64(n).String())))
return common.BytesToHash(crypto.Keccak256([]byte(new(big.Int).SetUint64(n).String())))
}
}
}

2
core/vm/vm.go
View File

@ -58,7 +58,7 @@ func (self *Vm) Run(contract *Contract, input []byte) (ret []byte, err error) {
}
var (
codehash = crypto.Sha3Hash(contract.Code) // codehash is used when doing jump dest caching
codehash = crypto.Keccak256Hash(contract.Code) // codehash is used when doing jump dest caching
program *Program
)
if EnableJit {

4
core/vm/vm_jit.go
View File

@ -200,7 +200,7 @@ func (self *JitVm) Run(me, caller ContextRef, code []byte, value, gas, price *bi
self.data.timestamp = self.env.Time()
self.data.code = getDataPtr(code)
self.data.codeSize = uint64(len(code))
self.data.codeHash = hash2llvm(crypto.Sha3(code)) // TODO: Get already computed hash?
self.data.codeHash = hash2llvm(crypto.Keccak256(code)) // TODO: Get already computed hash?
jit := C.evmjit_create()
retCode := C.evmjit_run(jit, unsafe.Pointer(&self.data), unsafe.Pointer(self))
@ -242,7 +242,7 @@ func (self *JitVm) Env() Environment {
//export env_sha3
func env_sha3(dataPtr *byte, length uint64, resultPtr unsafe.Pointer) {
data := llvm2bytesRef(dataPtr, length)
hash := crypto.Sha3(data)
hash := crypto.Keccak256(data)
result := (*i256)(resultPtr)
*result = hash2llvm(hash)
}

15
crypto/crypto.go
View File

@ -43,7 +43,7 @@ import (
"golang.org/x/crypto/ripemd160"
)
func Sha3(data ...[]byte) []byte {
func Keccak256(data ...[]byte) []byte {
d := sha3.NewKeccak256()
for _, b := range data {
d.Write(b)
@ -51,7 +51,7 @@ func Sha3(data ...[]byte) []byte {
return d.Sum(nil)
}
func Sha3Hash(data ...[]byte) (h common.Hash) {
func Keccak256Hash(data ...[]byte) (h common.Hash) {
d := sha3.NewKeccak256()
for _, b := range data {
d.Write(b)
@ -60,11 +60,14 @@ func Sha3Hash(data ...[]byte) (h common.Hash) {
return h
}
// Deprecated: For backward compatibility as other packages depend on these
func Sha3(data ...[]byte) []byte { return Keccak256(data...) }
func Sha3Hash(data ...[]byte) common.Hash { return Keccak256Hash(data...) }
// Creates an ethereum address given the bytes and the nonce
func CreateAddress(b common.Address, nonce uint64) common.Address {
data, _ := rlp.EncodeToBytes([]interface{}{b, nonce})
return common.BytesToAddress(Sha3(data)[12:])
//return Sha3(common.NewValue([]interface{}{b, nonce}).Encode())[12:]
return common.BytesToAddress(Keccak256(data)[12:])
}
func Sha256(data []byte) []byte {
@ -265,7 +268,7 @@ func decryptPreSaleKey(fileContent []byte, password string) (key *Key, err error
if err != nil {
return nil, err
}
ethPriv := Sha3(plainText)
ethPriv := Keccak256(plainText)
ecKey := ToECDSA(ethPriv)
key = &Key{
Id: nil,
@ -330,7 +333,7 @@ func PKCS7Unpad(in []byte) []byte {
func PubkeyToAddress(p ecdsa.PublicKey) common.Address {
pubBytes := FromECDSAPub(&p)
return common.BytesToAddress(Sha3(pubBytes[1:])[12:])
return common.BytesToAddress(Keccak256(pubBytes[1:])[12:])
}
func zeroBytes(bytes []byte) {

10
crypto/crypto_test.go
View File

@ -40,13 +40,13 @@ var testPrivHex = "289c2857d4598e37fb9647507e47a309d6133539bf21a8b9cb6df88fd5232
func TestSha3(t *testing.T) {
msg := []byte("abc")
exp, _ := hex.DecodeString("4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45")
checkhash(t, "Sha3-256", func(in []byte) []byte { return Sha3(in) }, msg, exp)
checkhash(t, "Sha3-256", func(in []byte) []byte { return Keccak256(in) }, msg, exp)
}
func TestSha3Hash(t *testing.T) {
msg := []byte("abc")
exp, _ := hex.DecodeString("4e03657aea45a94fc7d47ba826c8d667c0d1e6e33a64a036ec44f58fa12d6c45")
checkhash(t, "Sha3-256-array", func(in []byte) []byte { h := Sha3Hash(in); return h[:] }, msg, exp)
checkhash(t, "Sha3-256-array", func(in []byte) []byte { h := Keccak256Hash(in); return h[:] }, msg, exp)
}
func TestSha256(t *testing.T) {
@ -66,7 +66,7 @@ func BenchmarkSha3(b *testing.B) {
amount := 1000000
start := time.Now()
for i := 0; i < amount; i++ {
Sha3(a)
Keccak256(a)
}
fmt.Println(amount, ":", time.Since(start))
@ -84,7 +84,7 @@ func TestSign(t *testing.T) {
key, _ := HexToECDSA(testPrivHex)
addr := common.HexToAddress(testAddrHex)
msg := Sha3([]byte("foo"))
msg := Keccak256([]byte("foo"))
sig, err := Sign(msg, key)
if err != nil {
t.Errorf("Sign error: %s", err)
@ -238,7 +238,7 @@ func TestPythonIntegration(t *testing.T) {
k0, _ := HexToECDSA(kh)
k1 := FromECDSA(k0)
msg0 := Sha3([]byte("foo"))
msg0 := Keccak256([]byte("foo"))
sig0, _ := secp256k1.Sign(msg0, k1)
msg1 := common.FromHex("00000000000000000000000000000000")

8
crypto/key_store_passphrase.go
View File

@ -110,7 +110,7 @@ func (ks keyStorePassphrase) StoreKey(key *Key, auth string) (err error) {
return err
}
mac := Sha3(derivedKey[16:32], cipherText)
mac := Keccak256(derivedKey[16:32], cipherText)
scryptParamsJSON := make(map[string]interface{}, 5)
scryptParamsJSON["n"] = ks.scryptN
@ -210,7 +210,7 @@ func decryptKeyV3(keyProtected *encryptedKeyJSONV3, auth string) (keyBytes []byt
return nil, nil, err
}
calculatedMAC := Sha3(derivedKey[16:32], cipherText)
calculatedMAC := Keccak256(derivedKey[16:32], cipherText)
if !bytes.Equal(calculatedMAC, mac) {
return nil, nil, errors.New("Decryption failed: MAC mismatch")
}
@ -244,12 +244,12 @@ func decryptKeyV1(keyProtected *encryptedKeyJSONV1, auth string) (keyBytes []byt
return nil, nil, err
}
calculatedMAC := Sha3(derivedKey[16:32], cipherText)
calculatedMAC := Keccak256(derivedKey[16:32], cipherText)
if !bytes.Equal(calculatedMAC, mac) {
return nil, nil, errors.New("Decryption failed: MAC mismatch")
}
plainText, err := aesCBCDecrypt(Sha3(derivedKey[:16])[:16], cipherText, iv)
plainText, err := aesCBCDecrypt(Keccak256(derivedKey[:16])[:16], cipherText, iv)
if err != nil {
return nil, nil, err
}

10
crypto/randentropy/rand_entropy.go
View File

@ -19,8 +19,6 @@ package randentropy
import (
crand "crypto/rand"
"io"
"github.com/ethereum/go-ethereum/crypto/sha3"
)
var Reader io.Reader = &randEntropy{}
@ -34,14 +32,6 @@ func (*randEntropy) Read(bytes []byte) (n int, err error) {
return len(bytes), nil
}
// TODO: copied from crypto.go , move to sha3 package?
func Sha3(data []byte) []byte {
d := sha3.NewKeccak256()
d.Write(data)
return d.Sum(nil)
}
func GetEntropyCSPRNG(n int) []byte {
mainBuff := make([]byte, n)
_, err := io.ReadFull(crand.Reader, mainBuff)

27
crypto/sha3/LICENSE Normal file
View File

@ -0,0 +1,27 @@
Copyright (c) 2009 The Go Authors. All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are
met:
* Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the following disclaimer
in the documentation and/or other materials provided with the
distribution.
* Neither the name of Google Inc. nor the names of its
contributors may be used to endorse or promote products derived from
this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

22
crypto/sha3/PATENTS Normal file
View File

@ -0,0 +1,22 @@
Additional IP Rights Grant (Patents)
"This implementation" means the copyrightable works distributed by
Google as part of the Go project.
Google hereby grants to You a perpetual, worldwide, non-exclusive,
no-charge, royalty-free, irrevocable (except as stated in this section)
patent license to make, have made, use, offer to sell, sell, import,
transfer and otherwise run, modify and propagate the contents of this
implementation of Go, where such license applies only to those patent
claims, both currently owned or controlled by Google and acquired in
the future, licensable by Google that are necessarily infringed by this
implementation of Go. This grant does not include claims that would be
infringed only as a consequence of further modification of this
implementation. If you or your agent or exclusive licensee institute or
order or agree to the institution of patent litigation against any
entity (including a cross-claim or counterclaim in a lawsuit) alleging
that this implementation of Go or any code incorporated within this
implementation of Go constitutes direct or contributory patent
infringement, or inducement of patent infringement, then any patent
rights granted to you under this License for this implementation of Go
shall terminate as of the date such litigation is filed.

66
crypto/sha3/doc.go Normal file
View File

@ -0,0 +1,66 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package sha3 implements the SHA-3 fixed-output-length hash functions and
// the SHAKE variable-output-length hash functions defined by FIPS-202.
//
// Both types of hash function use the "sponge" construction and the Keccak
// permutation. For a detailed specification see http://keccak.noekeon.org/
//
//
// Guidance
//
// If you aren't sure what function you need, use SHAKE256 with at least 64
// bytes of output. The SHAKE instances are faster than the SHA3 instances;
// the latter have to allocate memory to conform to the hash.Hash interface.
//
// If you need a secret-key MAC (message authentication code), prepend the
// secret key to the input, hash with SHAKE256 and read at least 32 bytes of
// output.
//
//
// Security strengths
//
// The SHA3-x (x equals 224, 256, 384, or 512) functions have a security
// strength against preimage attacks of x bits. Since they only produce "x"
// bits of output, their collision-resistance is only "x/2" bits.
//
// The SHAKE-256 and -128 functions have a generic security strength of 256 and
// 128 bits against all attacks, provided that at least 2x bits of their output
// is used. Requesting more than 64 or 32 bytes of output, respectively, does
// not increase the collision-resistance of the SHAKE functions.
//
//
// The sponge construction
//
// A sponge builds a pseudo-random function from a public pseudo-random
// permutation, by applying the permutation to a state of "rate + capacity"
// bytes, but hiding "capacity" of the bytes.
//
// A sponge starts out with a zero state. To hash an input using a sponge, up
// to "rate" bytes of the input are XORed into the sponge's state. The sponge
// is then "full" and the permutation is applied to "empty" it. This process is
// repeated until all the input has been "absorbed". The input is then padded.
// The digest is "squeezed" from the sponge in the same way, except that output
// output is copied out instead of input being XORed in.
//
// A sponge is parameterized by its generic security strength, which is equal
// to half its capacity; capacity + rate is equal to the permutation's width.
// Since the KeccakF-1600 permutation is 1600 bits (200 bytes) wide, this means
// that the security strength of a sponge instance is equal to (1600 - bitrate) / 2.
//
//
// Recommendations
//
// The SHAKE functions are recommended for most new uses. They can produce
// output of arbitrary length. SHAKE256, with an output length of at least
// 64 bytes, provides 256-bit security against all attacks. The Keccak team
// recommends it for most applications upgrading from SHA2-512. (NIST chose a
// much stronger, but much slower, sponge instance for SHA3-512.)
//
// The SHA-3 functions are "drop-in" replacements for the SHA-2 functions.
// They produce output of the same length, with the same security strengths
// against all attacks. This means, in particular, that SHA3-256 only has
// 128-bit collision resistance, because its output length is 32 bytes.
package sha3

68
crypto/sha3/hashes.go Normal file
View File

@ -0,0 +1,68 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sha3
// This file provides functions for creating instances of the SHA-3
// and SHAKE hash functions, as well as utility functions for hashing
// bytes.
import (
"hash"
)
// NewKeccak256 creates a new Keccak-256 hash.
func NewKeccak256() hash.Hash { return &state{rate: 136, outputLen: 32, dsbyte: 0x01} }
// New224 creates a new SHA3-224 hash.
// Its generic security strength is 224 bits against preimage attacks,
// and 112 bits against collision attacks.
func New224() hash.Hash { return &state{rate: 144, outputLen: 28, dsbyte: 0x06} }
// New256 creates a new SHA3-256 hash.
// Its generic security strength is 256 bits against preimage attacks,
// and 128 bits against collision attacks.
func New256() hash.Hash { return &state{rate: 136, outputLen: 32, dsbyte: 0x06} }
// New384 creates a new SHA3-384 hash.
// Its generic security strength is 384 bits against preimage attacks,
// and 192 bits against collision attacks.
func New384() hash.Hash { return &state{rate: 104, outputLen: 48, dsbyte: 0x06} }
// New512 creates a new SHA3-512 hash.
// Its generic security strength is 512 bits against preimage attacks,
// and 256 bits against collision attacks.
func New512() hash.Hash { return &state{rate: 72, outputLen: 64, dsbyte: 0x06} }
// Sum224 returns the SHA3-224 digest of the data.
func Sum224(data []byte) (digest [28]byte) {
h := New224()
h.Write(data)
h.Sum(digest[:0])
return
}
// Sum256 returns the SHA3-256 digest of the data.
func Sum256(data []byte) (digest [32]byte) {
h := New256()
h.Write(data)
h.Sum(digest[:0])
return
}
// Sum384 returns the SHA3-384 digest of the data.
func Sum384(data []byte) (digest [48]byte) {
h := New384()
h.Write(data)
h.Sum(digest[:0])
return
}
// Sum512 returns the SHA3-512 digest of the data.
func Sum512(data []byte) (digest [64]byte) {
h := New512()
h.Write(data)
h.Sum(digest[:0])
return
}

28
crypto/sha3/keccakf.go
View File

@ -1,30 +1,6 @@
// Copyright 2014 The Go Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sha3

18
crypto/sha3/register.go Normal file
View File

@ -0,0 +1,18 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build go1.4
package sha3
import (
"crypto"
)
func init() {
crypto.RegisterHash(crypto.SHA3_224, New224)
crypto.RegisterHash(crypto.SHA3_256, New256)
crypto.RegisterHash(crypto.SHA3_384, New384)
crypto.RegisterHash(crypto.SHA3_512, New512)
}

358
crypto/sha3/sha3.go
View File

@ -1,237 +1,193 @@
// Copyright 2013 The Go Authors. All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package sha3 implements the SHA3 hash algorithm (formerly called Keccak) chosen by NIST in 2012.
// This file provides a SHA3 implementation which implements the standard hash.Hash interface.
// Writing input data, including padding, and reading output data are computed in this file.
// Note that the current implementation can compute the hash of an integral number of bytes only.
// This is a consequence of the hash interface in which a buffer of bytes is passed in.
// The internals of the Keccak-f function are computed in keccakf.go.
// For the detailed specification, refer to the Keccak web site (http://keccak.noekeon.org/).
package sha3
import (
"encoding/binary"
"hash"
// spongeDirection indicates the direction bytes are flowing through the sponge.
type spongeDirection int
const (
// spongeAbsorbing indicates that the sponge is absorbing input.
spongeAbsorbing spongeDirection = iota
// spongeSqueezing indicates that the sponge is being squeezed.
spongeSqueezing
)
// laneSize is the size in bytes of each "lane" of the internal state of SHA3 (5 * 5 * 8).
// Note that changing this size would requires using a type other than uint64 to store each lane.
const laneSize = 8
const (
// maxRate is the maximum size of the internal buffer. SHAKE-256
// currently needs the largest buffer.
maxRate = 168
)
// sliceSize represents the dimensions of the internal state, a square matrix of
// sliceSize ** 2 lanes. This is the size of both the "rows" and "columns" dimensions in the
// terminology of the SHA3 specification.
const sliceSize = 5
type state struct {
// Generic sponge components.
a [25]uint64 // main state of the hash
buf []byte // points into storage
rate int // the number of bytes of state to use
// numLanes represents the total number of lanes in the state.
const numLanes = sliceSize * sliceSize
// dsbyte contains the "domain separation" bits and the first bit of
// the padding. Sections 6.1 and 6.2 of [1] separate the outputs of the
// SHA-3 and SHAKE functions by appending bitstrings to the message.
// Using a little-endian bit-ordering convention, these are "01" for SHA-3
// and "1111" for SHAKE, or 00000010b and 00001111b, respectively. Then the
// padding rule from section 5.1 is applied to pad the message to a multiple
// of the rate, which involves adding a "1" bit, zero or more "0" bits, and
// a final "1" bit. We merge the first "1" bit from the padding into dsbyte,
// giving 00000110b (0x06) and 00011111b (0x1f).
// [1] http://csrc.nist.gov/publications/drafts/fips-202/fips_202_draft.pdf
// "Draft FIPS 202: SHA-3 Standard: Permutation-Based Hash and
// Extendable-Output Functions (May 2014)"
dsbyte byte
storage [maxRate]byte
// stateSize is the size in bytes of the internal state of SHA3 (5 * 5 * WSize).
const stateSize = laneSize * numLanes
// digest represents the partial evaluation of a checksum.
// Note that capacity, and not outputSize, is the critical security parameter, as SHA3 can output
// an arbitrary number of bytes for any given capacity. The Keccak proposal recommends that
// capacity = 2*outputSize to ensure that finding a collision of size outputSize requires
// O(2^{outputSize/2}) computations (the birthday lower bound). Future standards may modify the
// capacity/outputSize ratio to allow for more output with lower cryptographic security.
type digest struct {
a [numLanes]uint64 // main state of the hash
outputSize int // desired output size in bytes
capacity int // number of bytes to leave untouched during squeeze/absorb
absorbed int // number of bytes absorbed thus far
// Specific to SHA-3 and SHAKE.
fixedOutput bool // whether this is a fixed-ouput-length instance
outputLen int // the default output size in bytes
state spongeDirection // whether the sponge is absorbing or squeezing
}
// minInt returns the lesser of two integer arguments, to simplify the absorption routine.
func minInt(v1, v2 int) int {
if v1 <= v2 {
return v1
}
return v2
}
// BlockSize returns the rate of sponge underlying this hash function.
func (d *state) BlockSize() int { return d.rate }
// rate returns the number of bytes of the internal state which can be absorbed or squeezed
// in between calls to the permutation function.
func (d *digest) rate() int {
return stateSize - d.capacity
}
// Size returns the output size of the hash function in bytes.
func (d *state) Size() int { return d.outputLen }
// Reset clears the internal state by zeroing bytes in the state buffer.
// This can be skipped for a newly-created hash state; the default zero-allocated state is correct.
func (d *digest) Reset() {
d.absorbed = 0
// Reset clears the internal state by zeroing the sponge state and
// the byte buffer, and setting Sponge.state to absorbing.
func (d *state) Reset() {
// Zero the permutation's state.
for i := range d.a {
d.a[i] = 0
}
d.state = spongeAbsorbing
d.buf = d.storage[:0]
}
// BlockSize, required by the hash.Hash interface, does not have a standard intepretation
// for a sponge-based construction like SHA3. We return the data rate: the number of bytes which
// can be absorbed per invocation of the permutation function. For Merkle-Damgård based hashes
// (ie SHA1, SHA2, MD5) the output size of the internal compression function is returned.
// We consider this to be roughly equivalent because it represents the number of bytes of output
// produced per cryptographic operation.
func (d *digest) BlockSize() int { return d.rate() }
// Size returns the output size of the hash function in bytes.
func (d *digest) Size() int {
return d.outputSize
}
// unalignedAbsorb is a helper function for Write, which absorbs data that isn't aligned with an
// 8-byte lane. This requires shifting the individual bytes into position in a uint64.
func (d *digest) unalignedAbsorb(p []byte) {
var t uint64
for i := len(p) - 1; i >= 0; i-- {
t <<= 8
t |= uint64(p[i])
func (d *state) clone() *state {
ret := *d
if ret.state == spongeAbsorbing {
ret.buf = ret.storage[:len(ret.buf)]
} else {
ret.buf = ret.storage[d.rate-cap(d.buf) : d.rate]
}
offset := (d.absorbed) % d.rate()
t <<= 8 * uint(offset%laneSize)
d.a[offset/laneSize] ^= t
d.absorbed += len(p)
return &ret
}
// Write "absorbs" bytes into the state of the SHA3 hash, updating as needed when the sponge
// "fills up" with rate() bytes. Since lanes are stored internally as type uint64, this requires
// converting the incoming bytes into uint64s using a little endian interpretation. This
// implementation is optimized for large, aligned writes of multiples of 8 bytes (laneSize).
// Non-aligned or uneven numbers of bytes require shifting and are slower.
func (d *digest) Write(p []byte) (int, error) {
// An initial offset is needed if the we aren't absorbing to the first lane initially.
offset := d.absorbed % d.rate()
toWrite := len(p)
// permute applies the KeccakF-1600 permutation. It handles
// any input-output buffering.
func (d *state) permute() {
switch d.state {
case spongeAbsorbing:
// If we're absorbing, we need to xor the input into the state
// before applying the permutation.
xorIn(d, d.buf)
d.buf = d.storage[:0]
keccakF1600(&d.a)
case spongeSqueezing:
// If we're squeezing, we need to apply the permutatin before
// copying more output.
keccakF1600(&d.a)
d.buf = d.storage[:d.rate]
copyOut(d, d.buf)
}
}
// The first lane may need to absorb unaligned and/or incomplete data.
if (offset%laneSize != 0 || len(p) < 8) && len(p) > 0 {
toAbsorb := minInt(laneSize-(offset%laneSize), len(p))
d.unalignedAbsorb(p[:toAbsorb])
p = p[toAbsorb:]
offset = (d.absorbed) % d.rate()
// pads appends the domain separation bits in dsbyte, applies
// the multi-bitrate 10..1 padding rule, and permutes the state.
func (d *state) padAndPermute(dsbyte byte) {
if d.buf == nil {
d.buf = d.storage[:0]
}
// Pad with this instance's domain-separator bits. We know that there's
// at least one byte of space in d.buf because, if it were full,
// permute would have been called to empty it. dsbyte also contains the
// first one bit for the padding. See the comment in the state struct.
d.buf = append(d.buf, dsbyte)
zerosStart := len(d.buf)
d.buf = d.storage[:d.rate]
for i := zerosStart; i < d.rate; i++ {
d.buf[i] = 0
}
// This adds the final one bit for the padding. Because of the way that
// bits are numbered from the LSB upwards, the final bit is the MSB of
// the last byte.
d.buf[d.rate-1] ^= 0x80
// Apply the permutation
d.permute()
d.state = spongeSqueezing
d.buf = d.storage[:d.rate]
copyOut(d, d.buf)
}
// For every rate() bytes absorbed, the state must be permuted via the F Function.
if (d.absorbed)%d.rate() == 0 {
// Write absorbs more data into the hash's state. It produces an error
// if more data is written to the ShakeHash after writing
func (d *state) Write(p []byte) (written int, err error) {
if d.state != spongeAbsorbing {
panic("sha3: write to sponge after read")
}
if d.buf == nil {
d.buf = d.storage[:0]
}
written = len(p)
for len(p) > 0 {
if len(d.buf) == 0 && len(p) >= d.rate {
// The fast path; absorb a full "rate" bytes of input and apply the permutation.
xorIn(d, p[:d.rate])
p = p[d.rate:]
keccakF1600(&d.a)
} else {
// The slow path; buffer the input until we can fill the sponge, and then xor it in.
todo := d.rate - len(d.buf)
if todo > len(p) {
todo = len(p)
}
d.buf = append(d.buf, p[:todo]...)
p = p[todo:]
// If the sponge is full, apply the permutation.
if len(d.buf) == d.rate {
d.permute()
}
}
}
// This loop should absorb the bulk of the data into full, aligned lanes.
// It will call the update function as necessary.
for len(p) > 7 {
firstLane := offset / laneSize
lastLane := minInt(d.rate()/laneSize, firstLane+len(p)/laneSize)
// This inner loop absorbs input bytes into the state in groups of 8, converted to uint64s.
for lane := firstLane; lane < lastLane; lane++ {
d.a[lane] ^= binary.LittleEndian.Uint64(p[:laneSize])
p = p[laneSize:]
}
d.absorbed += (lastLane - firstLane) * laneSize
// For every rate() bytes absorbed, the state must be permuted via the F Function.
if (d.absorbed)%d.rate() == 0 {
keccakF1600(&d.a)
}
offset = 0
}
// If there are insufficient bytes to fill the final lane, an unaligned absorption.
// This should always start at a correct lane boundary though, or else it would be caught
// by the uneven opening lane case above.
if len(p) > 0 {
d.unalignedAbsorb(p)
}
return toWrite, nil
return
}
// pad computes the SHA3 padding scheme based on the number of bytes absorbed.
// The padding is a 1 bit, followed by an arbitrary number of 0s and then a final 1 bit, such that
// the input bits plus padding bits are a multiple of rate(). Adding the padding simply requires
// xoring an opening and closing bit into the appropriate lanes.
func (d *digest) pad() {
offset := d.absorbed % d.rate()
// The opening pad bit must be shifted into position based on the number of bytes absorbed
padOpenLane := offset / laneSize
d.a[padOpenLane] ^= 0x0000000000000001 << uint(8*(offset%laneSize))
// The closing padding bit is always in the last position
padCloseLane := (d.rate() / laneSize) - 1
d.a[padCloseLane] ^= 0x8000000000000000
}
// finalize prepares the hash to output data by padding and one final permutation of the state.
func (d *digest) finalize() {
d.pad()
keccakF1600(&d.a)
}
// squeeze outputs an arbitrary number of bytes from the hash state.
// Squeezing can require multiple calls to the F function (one per rate() bytes squeezed),
// although this is not the case for standard SHA3 parameters. This implementation only supports
// squeezing a single time, subsequent squeezes may lose alignment. Future implementations
// may wish to support multiple squeeze calls, for example to support use as a PRNG.
func (d *digest) squeeze(in []byte, toSqueeze int) []byte {
// Because we read in blocks of laneSize, we need enough room to read
// an integral number of lanes
needed := toSqueeze + (laneSize-toSqueeze%laneSize)%laneSize
if cap(in)-len(in) < needed {
newIn := make([]byte, len(in), len(in)+needed)
copy(newIn, in)
in = newIn
// Read squeezes an arbitrary number of bytes from the sponge.
func (d *state) Read(out []byte) (n int, err error) {
// If we're still absorbing, pad and apply the permutation.
if d.state == spongeAbsorbing {
d.padAndPermute(d.dsbyte)
}
out := in[len(in) : len(in)+needed]
n = len(out)
// Now, do the squeezing.
for len(out) > 0 {
for i := 0; i < d.rate() && len(out) > 0; i += laneSize {
binary.LittleEndian.PutUint64(out[:], d.a[i/laneSize])
out = out[laneSize:]
}
if len(out) > 0 {
keccakF1600(&d.a)
n := copy(out, d.buf)
d.buf = d.buf[n:]
out = out[n:]
// Apply the permutation if we've squeezed the sponge dry.
if len(d.buf) == 0 {
d.permute()
}
}
return in[:len(in)+toSqueeze] // Re-slice in case we wrote extra data.
return
}
// Sum applies padding to the hash state and then squeezes out the desired nubmer of output bytes.
func (d *digest) Sum(in []byte) []byte {
// Make a copy of the original hash so that caller can keep writing and summing.
dup := *d
dup.finalize()
return dup.squeeze(in, dup.outputSize)
// Sum applies padding to the hash state and then squeezes out the desired
// number of output bytes.
func (d *state) Sum(in []byte) []byte {
// Make a copy of the original hash so that caller can keep writing
// and summing.
dup := d.clone()
hash := make([]byte, dup.outputLen)
dup.Read(hash)
return append(in, hash...)
}
// The NewKeccakX constructors enable initializing a hash in any of the four recommend sizes
// from the Keccak specification, all of which set capacity=2*outputSize. Note that the final
// NIST standard for SHA3 may specify different input/output lengths.
// The output size is indicated in bits but converted into bytes internally.
func NewKeccak224() hash.Hash { return &digest{outputSize: 224 / 8, capacity: 2 * 224 / 8} }
func NewKeccak256() hash.Hash { return &digest{outputSize: 256 / 8, capacity: 2 * 256 / 8} }
func NewKeccak384() hash.Hash { return &digest{outputSize: 384 / 8, capacity: 2 * 384 / 8} }
func NewKeccak512() hash.Hash { return &digest{outputSize: 512 / 8, capacity: 2 * 512 / 8} }

306
crypto/sha3/sha3_test.go Normal file
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@ -0,0 +1,306 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sha3
// Tests include all the ShortMsgKATs provided by the Keccak team at
// https://github.com/gvanas/KeccakCodePackage
//
// They only include the zero-bit case of the bitwise testvectors
// published by NIST in the draft of FIPS-202.
import (
"bytes"
"compress/flate"
"encoding/hex"
"encoding/json"
"hash"
"os"
"strings"
"testing"
)
const (
testString = "brekeccakkeccak koax koax"
katFilename = "testdata/keccakKats.json.deflate"
)
// Internal-use instances of SHAKE used to test against KATs.
func newHashShake128() hash.Hash {
return &state{rate: 168, dsbyte: 0x1f, outputLen: 512}
}
func newHashShake256() hash.Hash {
return &state{rate: 136, dsbyte: 0x1f, outputLen: 512}
}
// testDigests contains functions returning hash.Hash instances
// with output-length equal to the KAT length for both SHA-3 and
// SHAKE instances.
var testDigests = map[string]func() hash.Hash{
"SHA3-224": New224,
"SHA3-256": New256,
"SHA3-384": New384,
"SHA3-512": New512,
"SHAKE128": newHashShake128,
"SHAKE256": newHashShake256,
}
// testShakes contains functions that return ShakeHash instances for
// testing the ShakeHash-specific interface.
var testShakes = map[string]func() ShakeHash{
"SHAKE128": NewShake128,
"SHAKE256": NewShake256,
}
// decodeHex converts a hex-encoded string into a raw byte string.
func decodeHex(s string) []byte {
b, err := hex.DecodeString(s)
if err != nil {
panic(err)
}
return b
}
// structs used to marshal JSON test-cases.
type KeccakKats struct {
Kats map[string][]struct {
Digest string `json:"digest"`
Length int64 `json:"length"`
Message string `json:"message"`
}
}
func testUnalignedAndGeneric(t *testing.T, testf func(impl string)) {
xorInOrig, copyOutOrig := xorIn, copyOut
xorIn, copyOut = xorInGeneric, copyOutGeneric
testf("generic")
if xorImplementationUnaligned != "generic" {
xorIn, copyOut = xorInUnaligned, copyOutUnaligned
testf("unaligned")
}
xorIn, copyOut = xorInOrig, copyOutOrig
}
// TestKeccakKats tests the SHA-3 and Shake implementations against all the
// ShortMsgKATs from https://github.com/gvanas/KeccakCodePackage
// (The testvectors are stored in keccakKats.json.deflate due to their length.)
func TestKeccakKats(t *testing.T) {
testUnalignedAndGeneric(t, func(impl string) {
// Read the KATs.
deflated, err := os.Open(katFilename)
if err != nil {
t.Errorf("error opening %s: %s", katFilename, err)
}
file := flate.NewReader(deflated)
dec := json.NewDecoder(file)
var katSet KeccakKats
err = dec.Decode(&katSet)
if err != nil {
t.Errorf("error decoding KATs: %s", err)
}
// Do the KATs.
for functionName, kats := range katSet.Kats {
d := testDigests[functionName]()
for _, kat := range kats {
d.Reset()
in, err := hex.DecodeString(kat.Message)
if err != nil {
t.Errorf("error decoding KAT: %s", err)
}
d.Write(in[:kat.Length/8])
got := strings.ToUpper(hex.EncodeToString(d.Sum(nil)))
if got != kat.Digest {
t.Errorf("function=%s, implementation=%s, length=%d\nmessage:\n %s\ngot:\n %s\nwanted:\n %s",
functionName, impl, kat.Length, kat.Message, got, kat.Digest)
t.Logf("wanted %+v", kat)
t.FailNow()
}
continue
}
}
})
}
// TestUnalignedWrite tests that writing data in an arbitrary pattern with
// small input buffers.
func testUnalignedWrite(t *testing.T) {
testUnalignedAndGeneric(t, func(impl string) {
buf := sequentialBytes(0x10000)
for alg, df := range testDigests {
d := df()
d.Reset()
d.Write(buf)
want := d.Sum(nil)
d.Reset()
for i := 0; i < len(buf); {
// Cycle through offsets which make a 137 byte sequence.
// Because 137 is prime this sequence should exercise all corner cases.
offsets := [17]int{1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 1}
for _, j := range offsets {
if v := len(buf) - i; v < j {
j = v
}
d.Write(buf[i : i+j])
i += j
}
}
got := d.Sum(nil)
if !bytes.Equal(got, want) {
t.Errorf("Unaligned writes, implementation=%s, alg=%s\ngot %q, want %q", impl, alg, got, want)
}
}
})
}
// TestAppend checks that appending works when reallocation is necessary.
func TestAppend(t *testing.T) {
testUnalignedAndGeneric(t, func(impl string) {
d := New224()
for capacity := 2; capacity <= 66; capacity += 64 {
// The first time around the loop, Sum will have to reallocate.
// The second time, it will not.
buf := make([]byte, 2, capacity)
d.Reset()
d.Write([]byte{0xcc})
buf = d.Sum(buf)
expected := "0000DF70ADC49B2E76EEE3A6931B93FA41841C3AF2CDF5B32A18B5478C39"
if got := strings.ToUpper(hex.EncodeToString(buf)); got != expected {
t.Errorf("got %s, want %s", got, expected)
}
}
})
}
// TestAppendNoRealloc tests that appending works when no reallocation is necessary.
func TestAppendNoRealloc(t *testing.T) {
testUnalignedAndGeneric(t, func(impl string) {
buf := make([]byte, 1, 200)
d := New224()
d.Write([]byte{0xcc})
buf = d.Sum(buf)
expected := "00DF70ADC49B2E76EEE3A6931B93FA41841C3AF2CDF5B32A18B5478C39"
if got := strings.ToUpper(hex.EncodeToString(buf)); got != expected {
t.Errorf("%s: got %s, want %s", impl, got, expected)
}
})
}
// TestSqueezing checks that squeezing the full output a single time produces
// the same output as repeatedly squeezing the instance.
func TestSqueezing(t *testing.T) {
testUnalignedAndGeneric(t, func(impl string) {
for functionName, newShakeHash := range testShakes {
d0 := newShakeHash()
d0.Write([]byte(testString))
ref := make([]byte, 32)
d0.Read(ref)
d1 := newShakeHash()
d1.Write([]byte(testString))
var multiple []byte
for _ = range ref {
one := make([]byte, 1)
d1.Read(one)
multiple = append(multiple, one...)
}
if !bytes.Equal(ref, multiple) {
t.Errorf("%s (%s): squeezing %d bytes one at a time failed", functionName, impl, len(ref))
}
}
})
}
// sequentialBytes produces a buffer of size consecutive bytes 0x00, 0x01, ..., used for testing.
func sequentialBytes(size int) []byte {
result := make([]byte, size)
for i := range result {
result[i] = byte(i)
}
return result
}
// BenchmarkPermutationFunction measures the speed of the permutation function
// with no input data.
func BenchmarkPermutationFunction(b *testing.B) {
b.SetBytes(int64(200))
var lanes [25]uint64
for i := 0; i < b.N; i++ {
keccakF1600(&lanes)
}
}
// benchmarkHash tests the speed to hash num buffers of buflen each.
func benchmarkHash(b *testing.B, h hash.Hash, size, num int) {
b.StopTimer()
h.Reset()
data := sequentialBytes(size)
b.SetBytes(int64(size * num))
b.StartTimer()
var state []byte
for i := 0; i < b.N; i++ {
for j := 0; j < num; j++ {
h.Write(data)
}
state = h.Sum(state[:0])
}
b.StopTimer()
h.Reset()
}
// benchmarkShake is specialized to the Shake instances, which don't
// require a copy on reading output.
func benchmarkShake(b *testing.B, h ShakeHash, size, num int) {
b.StopTimer()
h.Reset()
data := sequentialBytes(size)
d := make([]byte, 32)
b.SetBytes(int64(size * num))
b.StartTimer()
for i := 0; i < b.N; i++ {
h.Reset()
for j := 0; j < num; j++ {
h.Write(data)
}
h.Read(d)
}
}
func BenchmarkSha3_512_MTU(b *testing.B) { benchmarkHash(b, New512(), 1350, 1) }
func BenchmarkSha3_384_MTU(b *testing.B) { benchmarkHash(b, New384(), 1350, 1) }
func BenchmarkSha3_256_MTU(b *testing.B) { benchmarkHash(b, New256(), 1350, 1) }
func BenchmarkSha3_224_MTU(b *testing.B) { benchmarkHash(b, New224(), 1350, 1) }
func BenchmarkShake128_MTU(b *testing.B) { benchmarkShake(b, NewShake128(), 1350, 1) }
func BenchmarkShake256_MTU(b *testing.B) { benchmarkShake(b, NewShake256(), 1350, 1) }
func BenchmarkShake256_16x(b *testing.B) { benchmarkShake(b, NewShake256(), 16, 1024) }
func BenchmarkShake256_1MiB(b *testing.B) { benchmarkShake(b, NewShake256(), 1024, 1024) }
func BenchmarkSha3_512_1MiB(b *testing.B) { benchmarkHash(b, New512(), 1024, 1024) }
func Example_sum() {
buf := []byte("some data to hash")
// A hash needs to be 64 bytes long to have 256-bit collision resistance.
h := make([]byte, 64)
// Compute a 64-byte hash of buf and put it in h.
ShakeSum256(h, buf)
}
func Example_mac() {
k := []byte("this is a secret key; you should generate a strong random key that's at least 32 bytes long")
buf := []byte("and this is some data to authenticate")
// A MAC with 32 bytes of output has 256-bit security strength -- if you use at least a 32-byte-long key.
h := make([]byte, 32)
d := NewShake256()
// Write the key into the hash.
d.Write(k)
// Now write the data.
d.Write(buf)
// Read 32 bytes of output from the hash into h.
d.Read(h)
}

60
crypto/sha3/shake.go Normal file
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@ -0,0 +1,60 @@
// Copyright 2014 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sha3
// This file defines the ShakeHash interface, and provides
// functions for creating SHAKE instances, as well as utility
// functions for hashing bytes to arbitrary-length output.
import (
"io"
)
// ShakeHash defines the interface to hash functions that
// support arbitrary-length output.
type ShakeHash interface {
// Write absorbs more data into the hash's state. It panics if input is
// written to it after output has been read from it.
io.Writer
// Read reads more output from the hash; reading affects the hash's
// state. (ShakeHash.Read is thus very different from Hash.Sum)
// It never returns an error.
io.Reader
// Clone returns a copy of the ShakeHash in its current state.
Clone() ShakeHash
// Reset resets the ShakeHash to its initial state.
Reset()
}
func (d *state) Clone() ShakeHash {
return d.clone()
}
// NewShake128 creates a new SHAKE128 variable-output-length ShakeHash.
// Its generic security strength is 128 bits against all attacks if at
// least 32 bytes of its output are used.
func NewShake128() ShakeHash { return &state{rate: 168, dsbyte: 0x1f} }
// NewShake256 creates a new SHAKE128 variable-output-length ShakeHash.
// Its generic security strength is 256 bits against all attacks if
// at least 64 bytes of its output are used.
func NewShake256() ShakeHash { return &state{rate: 136, dsbyte: 0x1f} }
// ShakeSum128 writes an arbitrary-length digest of data into hash.
func ShakeSum128(hash, data []byte) {
h := NewShake128()
h.Write(data)
h.Read(hash)
}
// ShakeSum256 writes an arbitrary-length digest of data into hash.
func ShakeSum256(hash, data []byte) {
h := NewShake256()
h.Write(data)
h.Read(hash)
}

BIN
crypto/sha3/testdata/keccakKats.json.deflate vendored Normal file
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16
crypto/sha3/xor.go Normal file
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@ -0,0 +1,16 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build !amd64,!386 appengine
package sha3
var (
xorIn = xorInGeneric
copyOut = copyOutGeneric
xorInUnaligned = xorInGeneric
copyOutUnaligned = copyOutGeneric
)
const xorImplementationUnaligned = "generic"

28
crypto/sha3/xor_generic.go Normal file
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@ -0,0 +1,28 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package sha3
import "encoding/binary"
// xorInGeneric xors the bytes in buf into the state; it
// makes no non-portable assumptions about memory layout
// or alignment.
func xorInGeneric(d *state, buf []byte) {
n := len(buf) / 8
for i := 0; i < n; i++ {
a := binary.LittleEndian.Uint64(buf)
d.a[i] ^= a
buf = buf[8:]
}
}
// copyOutGeneric copies ulint64s to a byte buffer.
func copyOutGeneric(d *state, b []byte) {
for i := 0; len(b) >= 8; i++ {
binary.LittleEndian.PutUint64(b, d.a[i])
b = b[8:]
}
}

58
crypto/sha3/xor_unaligned.go Normal file
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@ -0,0 +1,58 @@
// Copyright 2015 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build amd64 386
// +build !appengine
package sha3
import "unsafe"
func xorInUnaligned(d *state, buf []byte) {
bw := (*[maxRate / 8]uint64)(unsafe.Pointer(&buf[0]))
n := len(buf)
if n >= 72 {
d.a[0] ^= bw[0]
d.a[1] ^= bw[1]
d.a[2] ^= bw[2]
d.a[3] ^= bw[3]
d.a[4] ^= bw[4]
d.a[5] ^= bw[5]
d.a[6] ^= bw[6]
d.a[7] ^= bw[7]
d.a[8] ^= bw[8]
}
if n >= 104 {
d.a[9] ^= bw[9]
d.a[10] ^= bw[10]
d.a[11] ^= bw[11]
d.a[12] ^= bw[12]
}
if n >= 136 {
d.a[13] ^= bw[13]
d.a[14] ^= bw[14]
d.a[15] ^= bw[15]
d.a[16] ^= bw[16]
}
if n >= 144 {
d.a[17] ^= bw[17]
}
if n >= 168 {
d.a[18] ^= bw[18]
d.a[19] ^= bw[19]
d.a[20] ^= bw[20]
}
}
func copyOutUnaligned(d *state, buf []byte) {
ab := (*[maxRate]uint8)(unsafe.Pointer(&d.a[0]))
copy(buf, ab[:])
}
var (
xorIn = xorInUnaligned
copyOut = copyOutUnaligned
)
const xorImplementationUnaligned = "unaligned"

2
eth/downloader/queue.go
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@ -977,7 +977,7 @@ func (q *queue) DeliverNodeData(id string, data [][]byte, callback func(error, i
process := []trie.SyncResult{}
for _, blob := range data {
// Skip any state trie entires that were not requested
hash := common.BytesToHash(crypto.Sha3(blob))
hash := common.BytesToHash(crypto.Keccak256(blob))
if _, ok := request.Hashes[hash]; !ok {
errs = append(errs, fmt.Errorf("non-requested state data %x", hash))
continue

2
eth/handler_test.go
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@ -481,7 +481,7 @@ func testGetNodeData(t *testing.T, protocol int) {
}
// Verify that all hashes correspond to the requested data, and reconstruct a state tree
for i, want := range hashes {
if hash := crypto.Sha3Hash(data[i]); hash != want {
if hash := crypto.Keccak256Hash(data[i]); hash != want {
fmt.Errorf("data hash mismatch: have %x, want %x", hash, want)
}
}

11
ethdb/README.md
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@ -1,11 +0,0 @@
# ethdb
The ethdb package contains the ethereum database interfaces
# Installation
`go get github.com/ethereum/ethdb-go`
# Usage
Todo :-)

2
generators/defaults.go
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@ -52,7 +52,7 @@ func main() {
json.Unmarshal(content, &m)
filepath := filepath.Join(os.Getenv("GOPATH"), "src", "github.com", "ethereum", "go-ethereum", "params", os.Args[2])
output, err := os.OpenFile(filepath, os.O_RDWR|os.O_CREATE, os.ModePerm /*0777*/)
output, err := os.OpenFile(filepath, os.O_RDWR|os.O_CREATE, 0666)
if err != nil {
fatal("error opening file for writing %v\n", err)
}

4
light/odr.go
View File

@ -53,7 +53,7 @@ func (req *TrieRequest) StoreResult(db ethdb.Database) {
// storeProof stores the new trie nodes obtained from a merkle proof in the database
func storeProof(db ethdb.Database, proof []rlp.RawValue) {
for _, buf := range proof {
hash := crypto.Sha3(buf)
hash := crypto.Keccak256(buf)
val, _ := db.Get(hash)
if val == nil {
db.Put(hash, buf)
@ -78,7 +78,7 @@ func (req *NodeDataRequest) StoreResult(db ethdb.Database) {
db.Put(req.hash[:], req.GetData())
}
var sha3_nil = crypto.Sha3Hash(nil)
var sha3_nil = crypto.Keccak256Hash(nil)
// retrieveNodeData tries to retrieve node data with the given hash from the network
func retrieveNodeData(ctx context.Context, odr OdrBackend, hash common.Hash) ([]byte, error) {

4
light/state_object.go
View File

@ -29,7 +29,7 @@ import (
"golang.org/x/net/context"
)
var emptyCodeHash = crypto.Sha3(nil)
var emptyCodeHash = crypto.Keccak256(nil)
// Code represents a contract code in binary form
type Code []byte
@ -220,7 +220,7 @@ func (self *StateObject) Code() []byte {
// SetCode sets the contract code
func (self *StateObject) SetCode(code []byte) {
self.code = code
self.codeHash = crypto.Sha3(code)
self.codeHash = crypto.Keccak256(code)
self.dirty = true
}

2
node/api.go
View File

@ -269,5 +269,5 @@ func (s *PublicWeb3API) ClientVersion() string {
// Sha3 applies the ethereum sha3 implementation on the input.
// It assumes the input is hex encoded.
func (s *PublicWeb3API) Sha3(input string) string {
return common.ToHex(crypto.Sha3(common.FromHex(input)))
return common.ToHex(crypto.Keccak256(common.FromHex(input)))
}

2
p2p/discover/database.go
View File

@ -188,7 +188,7 @@ func (db *nodeDB) node(id NodeID) *Node {
glog.V(logger.Warn).Infof("failed to decode node RLP: %v", err)
return nil
}
node.sha = crypto.Sha3Hash(node.ID[:])
node.sha = crypto.Keccak256Hash(node.ID[:])
return node
}

2
p2p/discover/node.go
View File

@ -67,7 +67,7 @@ func NewNode(id NodeID, ip net.IP, udpPort, tcpPort uint16) *Node {
UDP: udpPort,
TCP: tcpPort,
ID: id,
sha: crypto.Sha3Hash(id[:]),
sha: crypto.Keccak256Hash(id[:]),
}
}

6
p2p/discover/table.go
View File

@ -195,7 +195,7 @@ func (tab *Table) SetFallbackNodes(nodes []*Node) error {
cpy := *n
// Recompute cpy.sha because the node might not have been
// created by NewNode or ParseNode.
cpy.sha = crypto.Sha3Hash(n.ID[:])
cpy.sha = crypto.Keccak256Hash(n.ID[:])
tab.nursery = append(tab.nursery, &cpy)
}
tab.mutex.Unlock()
@ -208,7 +208,7 @@ func (tab *Table) SetFallbackNodes(nodes []*Node) error {
func (tab *Table) Resolve(targetID NodeID) *Node {
// If the node is present in the local table, no
// network interaction is required.
hash := crypto.Sha3Hash(targetID[:])
hash := crypto.Keccak256Hash(targetID[:])
tab.mutex.Lock()
cl := tab.closest(hash, 1)
tab.mutex.Unlock()
@ -236,7 +236,7 @@ func (tab *Table) Lookup(targetID NodeID) []*Node {
func (tab *Table) lookup(targetID NodeID, refreshIfEmpty bool) []*Node {
var (
target = crypto.Sha3Hash(targetID[:])
target = crypto.Keccak256Hash(targetID[:])
asked = make(map[NodeID]bool)
seen = make(map[NodeID]bool)
reply = make(chan []*Node, alpha)

4
p2p/discover/table_test.go
View File

@ -530,12 +530,12 @@ func (*preminedTestnet) ping(toid NodeID, toaddr *net.UDPAddr) error { return ni
// various distances to the given target.
func (n *preminedTestnet) mine(target NodeID) {
n.target = target
n.targetSha = crypto.Sha3Hash(n.target[:])
n.targetSha = crypto.Keccak256Hash(n.target[:])
found := 0
for found < bucketSize*10 {
k := newkey()
id := PubkeyID(&k.PublicKey)
sha := crypto.Sha3Hash(id[:])
sha := crypto.Keccak256Hash(id[:])
ld := logdist(n.targetSha, sha)
if len(n.dists[ld]) < bucketSize {
n.dists[ld] = append(n.dists[ld], id)

10
p2p/discover/udp.go
View File

@ -466,7 +466,7 @@ func encodePacket(priv *ecdsa.PrivateKey, ptype byte, req interface{}) ([]byte,
return nil, err
}
packet := b.Bytes()
sig, err := crypto.Sign(crypto.Sha3(packet[headSize:]), priv)
sig, err := crypto.Sign(crypto.Keccak256(packet[headSize:]), priv)
if err != nil {
glog.V(logger.Error).Infoln("could not sign packet:", err)
return nil, err
@ -475,7 +475,7 @@ func encodePacket(priv *ecdsa.PrivateKey, ptype byte, req interface{}) ([]byte,
// add the hash to the front. Note: this doesn't protect the
// packet in any way. Our public key will be part of this hash in
// The future.
copy(packet, crypto.Sha3(packet[macSize:]))
copy(packet, crypto.Keccak256(packet[macSize:]))
return packet, nil
}
@ -527,11 +527,11 @@ func decodePacket(buf []byte) (packet, NodeID, []byte, error) {
return nil, NodeID{}, nil, errPacketTooSmall
}
hash, sig, sigdata := buf[:macSize], buf[macSize:headSize], buf[headSize:]
shouldhash := crypto.Sha3(buf[macSize:])
shouldhash := crypto.Keccak256(buf[macSize:])
if !bytes.Equal(hash, shouldhash) {
return nil, NodeID{}, nil, errBadHash
}
fromID, err := recoverNodeID(crypto.Sha3(buf[headSize:]), sig)
fromID, err := recoverNodeID(crypto.Keccak256(buf[headSize:]), sig)
if err != nil {
return nil, NodeID{}, hash, err
}
@ -593,7 +593,7 @@ func (req *findnode) handle(t *udp, from *net.UDPAddr, fromID NodeID, mac []byte
// (which is a much bigger packet than findnode) to the victim.
return errUnknownNode
}
target := crypto.Sha3Hash(req.Target[:])
target := crypto.Keccak256Hash(req.Target[:])
t.mutex.Lock()
closest := t.closest(target, bucketSize).entries
t.mutex.Unlock()

2
p2p/discover/udp_test.go
View File

@ -286,7 +286,7 @@ func TestUDP_findnode(t *testing.T) {
// put a few nodes into the table. their exact
// distribution shouldn't matter much, altough we need to
// take care not to overflow any bucket.
targetHash := crypto.Sha3Hash(testTarget[:])
targetHash := crypto.Keccak256Hash(testTarget[:])
nodes := &nodesByDistance{target: targetHash}
for i := 0; i < bucketSize; i++ {
nodes.push(nodeAtDistance(test.table.self.sha, i+2), bucketSize)

8
p2p/rlpx.go
View File

@ -232,12 +232,12 @@ func (h *encHandshake) secrets(auth, authResp []byte) (secrets, error) {
}
// derive base secrets from ephemeral key agreement
sharedSecret := crypto.Sha3(ecdheSecret, crypto.Sha3(h.respNonce, h.initNonce))
aesSecret := crypto.Sha3(ecdheSecret, sharedSecret)
sharedSecret := crypto.Keccak256(ecdheSecret, crypto.Keccak256(h.respNonce, h.initNonce))
aesSecret := crypto.Keccak256(ecdheSecret, sharedSecret)
s := secrets{
RemoteID: h.remoteID,
AES: aesSecret,
MAC: crypto.Sha3(ecdheSecret, aesSecret),
MAC: crypto.Keccak256(ecdheSecret, aesSecret),
}
// setup sha3 instances for the MACs
@ -426,7 +426,7 @@ func (h *encHandshake) makeAuthResp() (msg *authRespV4, err error) {
func (msg *authMsgV4) sealPlain(h *encHandshake) ([]byte, error) {
buf := make([]byte, authMsgLen)
n := copy(buf, msg.Signature[:])
n += copy(buf[n:], crypto.Sha3(exportPubkey(&h.randomPrivKey.PublicKey)))
n += copy(buf[n:], crypto.Keccak256(exportPubkey(&h.randomPrivKey.PublicKey)))
n += copy(buf[n:], msg.InitiatorPubkey[:])
n += copy(buf[n:], msg.Nonce[:])
buf[n] = 0 // token-flag

4
p2p/rlpx_test.go
View File

@ -267,8 +267,8 @@ func TestRLPXFrameFake(t *testing.T) {
buf := new(bytes.Buffer)
hash := fakeHash([]byte{1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1})
rw := newRLPXFrameRW(buf, secrets{
AES: crypto.Sha3(),
MAC: crypto.Sha3(),
AES: crypto.Keccak256(),
MAC: crypto.Keccak256(),
IngressMAC: hash,
EgressMAC: hash,
})

0
params/protocol_params.go Executable file → Normal file
View File

2
tests/util.go
View File

@ -183,7 +183,7 @@ func (self *Env) Db() vm.Database { return self.state }
func (self *Env) GasLimit() *big.Int { return self.gasLimit }
func (self *Env) VmType() vm.Type { return vm.StdVmTy }
func (self *Env) GetHash(n uint64) common.Hash {
return common.BytesToHash(crypto.Sha3([]byte(big.NewInt(int64(n)).String())))
return common.BytesToHash(crypto.Keccak256([]byte(big.NewInt(int64(n)).String())))
}
func (self *Env) AddLog(log *vm.Log) {
self.state.AddLog(log)

2
trie/secure_trie_test.go
View File

@ -63,7 +63,7 @@ func TestSecureGetKey(t *testing.T) {
key := []byte("foo")
value := []byte("bar")
seckey := crypto.Sha3(key)
seckey := crypto.Keccak256(key)
if !bytes.Equal(trie.Get(key), value) {
t.Errorf("Get did not return bar")

2
trie/trie.go
View File

@ -40,7 +40,7 @@ var (
emptyRoot = common.HexToHash("56e81f171bcc55a6ff8345e692c0f86e5b48e01b996cadc001622fb5e363b421")
// This is the known hash of an empty state trie entry.
emptyState = crypto.Sha3Hash(nil)
emptyState = crypto.Keccak256Hash(nil)
)
// ClearGlobalCache clears the global trie cache

6
whisper/envelope.go
View File

@ -66,7 +66,7 @@ func (self *Envelope) Seal(pow time.Duration) {
for i := 0; i < 1024; i++ {
binary.BigEndian.PutUint32(d[60:], nonce)
firstBit := common.FirstBitSet(common.BigD(crypto.Sha3(d)))
firstBit := common.FirstBitSet(common.BigD(crypto.Keccak256(d)))
if firstBit > bestBit {
self.Nonce, bestBit = nonce, firstBit
}
@ -123,7 +123,7 @@ func (self *Envelope) Open(key *ecdsa.PrivateKey) (msg *Message, err error) {
func (self *Envelope) Hash() common.Hash {
if (self.hash == common.Hash{}) {
enc, _ := rlp.EncodeToBytes(self)
self.hash = crypto.Sha3Hash(enc)
self.hash = crypto.Keccak256Hash(enc)
}
return self.hash
}
@ -142,6 +142,6 @@ func (self *Envelope) DecodeRLP(s *rlp.Stream) error {
if err := rlp.DecodeBytes(raw, (*rlpenv)(self)); err != nil {
return err
}
self.hash = crypto.Sha3Hash(raw)
self.hash = crypto.Keccak256Hash(raw)
return nil
}

2
whisper/message.go
View File

@ -146,7 +146,7 @@ func (self *Message) decrypt(key *ecdsa.PrivateKey) error {
// hash calculates the SHA3 checksum of the message flags and payload.
func (self *Message) hash() []byte {
return crypto.Sha3(append([]byte{self.Flags}, self.Payload...))
return crypto.Keccak256(append([]byte{self.Flags}, self.Payload...))
}
// bytes flattens the message contents (flags, signature and payload) into a

2
whisper/topic.go
View File

@ -31,7 +31,7 @@ type Topic [4]byte
// Note, empty topics are considered the wildcard, and cannot be used in messages.
func NewTopic(data []byte) Topic {
prefix := [4]byte{}
copy(prefix[:], crypto.Sha3(data)[:4])
copy(prefix[:], crypto.Keccak256(data)[:4])
return Topic(prefix)
}