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Merge pull request #1454 from ethersphere/frozen-cryptoclean

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crypto: remove obsolete code
pull/1687/merge
Jeffrey Wilcke 9 years ago
parent 0737cbc5c1 d4da2f630e
commit 3b997c3e16
4 changed files with 0 additions and 1878 deletions
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  1. 66
      crypto/keypair.go
  2. 76
      crypto/mnemonic.go
  3. 90
      crypto/mnemonic_test.go
  4. 1646
      crypto/mnemonic_words.go

66
crypto/keypair.go
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@ -1,66 +0,0 @@
// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package crypto
import (
"strings"
"github.com/ethereum/go-ethereum/common"
"github.com/ethereum/go-ethereum/crypto/secp256k1"
)
type KeyPair struct {
PrivateKey []byte
PublicKey []byte
address []byte
mnemonic string
// The associated account
// account *StateObject
}
func GenerateNewKeyPair() *KeyPair {
_, prv := secp256k1.GenerateKeyPair()
keyPair, _ := NewKeyPairFromSec(prv) // swallow error, this one cannot err
return keyPair
}
func NewKeyPairFromSec(seckey []byte) (*KeyPair, error) {
pubkey, err := secp256k1.GeneratePubKey(seckey)
if err != nil {
return nil, err
}
return &KeyPair{PrivateKey: seckey, PublicKey: pubkey}, nil
}
func (k *KeyPair) Address() []byte {
if k.address == nil {
k.address = Sha3(k.PublicKey[1:])[12:]
}
return k.address
}
func (k *KeyPair) Mnemonic() string {
if k.mnemonic == "" {
k.mnemonic = strings.Join(MnemonicEncode(common.Bytes2Hex(k.PrivateKey)), " ")
}
return k.mnemonic
}
func (k *KeyPair) AsStrings() (string, string, string, string) {
return k.Mnemonic(), common.Bytes2Hex(k.Address()), common.Bytes2Hex(k.PrivateKey), common.Bytes2Hex(k.PublicKey)
}

76
crypto/mnemonic.go
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@ -1,76 +0,0 @@
// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package crypto
import (
"fmt"
"strconv"
)
// TODO: See if we can refactor this into a shared util lib if we need it multiple times
func IndexOf(slice []string, value string) int64 {
for p, v := range slice {
if v == value {
return int64(p)
}
}
return -1
}
func MnemonicEncode(message string) []string {
var out []string
n := int64(len(MnemonicWords))
for i := 0; i < len(message); i += (len(message) / 8) {
x := message[i : i+8]
bit, _ := strconv.ParseInt(x, 16, 64)
w1 := (bit % n)
w2 := ((bit / n) + w1) % n
w3 := ((bit / n / n) + w2) % n
out = append(out, MnemonicWords[w1], MnemonicWords[w2], MnemonicWords[w3])
}
return out
}
func MnemonicDecode(wordsar []string) string {
var out string
n := int64(len(MnemonicWords))
for i := 0; i < len(wordsar); i += 3 {
word1 := wordsar[i]
word2 := wordsar[i+1]
word3 := wordsar[i+2]
w1 := IndexOf(MnemonicWords, word1)
w2 := IndexOf(MnemonicWords, word2)
w3 := IndexOf(MnemonicWords, word3)
y := (w2 - w1) % n
z := (w3 - w2) % n
// Golang handles modulo with negative numbers different then most languages
// The modulo can be negative, we don't want that.
if z < 0 {
z += n
}
if y < 0 {
y += n
}
x := w1 + n*(y) + n*n*(z)
out += fmt.Sprintf("%08x", x)
}
return out
}

90
crypto/mnemonic_test.go
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@ -1,90 +0,0 @@
// Copyright 2014 The go-ethereum Authors
// This file is part of the go-ethereum library.
//
// The go-ethereum 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 go-ethereum 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 go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
package crypto
import (
"testing"
)
func TestMnDecode(t *testing.T) {
words := []string{
"ink",
"balance",
"gain",
"fear",
"happen",
"melt",
"mom",
"surface",
"stir",
"bottle",
"unseen",
"expression",
"important",
"curl",
"grant",
"fairy",
"across",
"back",
"figure",
"breast",
"nobody",
"scratch",
"worry",
"yesterday",
}
encode := "c61d43dc5bb7a4e754d111dae8105b6f25356492df5e50ecb33b858d94f8c338"
result := MnemonicDecode(words)
if encode != result {
t.Error("We expected", encode, "got", result, "instead")
}
}
func TestMnEncode(t *testing.T) {
encode := "c61d43dc5bb7a4e754d111dae8105b6f25356492df5e50ecb33b858d94f8c338"
result := []string{
"ink",
"balance",
"gain",
"fear",
"happen",
"melt",
"mom",
"surface",
"stir",
"bottle",
"unseen",
"expression",
"important",
"curl",
"grant",
"fairy",
"across",
"back",
"figure",
"breast",
"nobody",
"scratch",
"worry",
"yesterday",
}
words := MnemonicEncode(encode)
for i, word := range words {
if word != result[i] {
t.Error("Mnenonic does not match:", words, result)
}
}
}

1646
crypto/mnemonic_words.go
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