110 lines
1.8 KiB
Go
110 lines
1.8 KiB
Go
package ethutil
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import (
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"github.com/obscuren/secp256k1-go"
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)
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type KeyPair struct {
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PrivateKey []byte
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PublicKey []byte
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// The associated account
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account *StateObject
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}
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func NewKeyPairFromSec(seckey []byte) (*KeyPair, error) {
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pubkey, err := secp256k1.GeneratePubKey(seckey)
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if err != nil {
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return nil, err
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}
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return &KeyPair{PrivateKey: seckey, PublicKey: pubkey}, nil
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}
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func NewKeyPairFromValue(val *Value) *KeyPair {
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v, _ := NewKeyPairFromSec(val.Bytes())
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return v
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}
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func (k *KeyPair) Address() []byte {
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return Sha3Bin(k.PublicKey[1:])[12:]
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}
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func (k *KeyPair) RlpEncode() []byte {
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return k.RlpValue().Encode()
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}
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func (k *KeyPair) RlpValue() *Value {
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return NewValue(k.PrivateKey)
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}
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type KeyRing struct {
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keys []*KeyPair
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}
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func (k *KeyRing) Add(pair *KeyPair) {
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k.keys = append(k.keys, pair)
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}
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func (k *KeyRing) Get(i int) *KeyPair {
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if len(k.keys) > i {
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return k.keys[i]
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}
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return nil
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}
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func (k *KeyRing) Len() int {
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return len(k.keys)
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}
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func (k *KeyRing) NewKeyPair(sec []byte) (*KeyPair, error) {
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keyPair, err := NewKeyPairFromSec(sec)
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if err != nil {
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return nil, err
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}
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k.Add(keyPair)
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Config.Db.Put([]byte("KeyRing"), k.RlpValue().Encode())
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return keyPair, nil
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}
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func (k *KeyRing) Reset() {
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Config.Db.Put([]byte("KeyRing"), nil)
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k.keys = nil
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}
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func (k *KeyRing) RlpValue() *Value {
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v := EmptyValue()
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for _, keyPair := range k.keys {
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v.Append(keyPair.RlpValue())
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}
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return v
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}
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// The public "singleton" keyring
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var keyRing *KeyRing
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func GetKeyRing() *KeyRing {
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if keyRing == nil {
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keyRing = &KeyRing{}
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data, _ := Config.Db.Get([]byte("KeyRing"))
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it := NewValueFromBytes(data).NewIterator()
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for it.Next() {
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v := it.Value()
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key, err := NewKeyPairFromSec(v.Bytes())
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if err != nil {
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panic(err)
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}
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keyRing.Add(key)
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}
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}
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return keyRing
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}
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