88 lines
1.8 KiB
Go
88 lines
1.8 KiB
Go
package ethchain
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import (
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"github.com/ethereum/eth-go/ethutil"
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"github.com/obscuren/secp256k1-go"
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"math/big"
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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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state *State
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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 *ethutil.Value) *KeyPair {
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keyPair := &KeyPair{PrivateKey: val.Get(0).Bytes(), PublicKey: val.Get(1).Bytes()}
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return keyPair
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}
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func (k *KeyPair) Address() []byte {
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return ethutil.Sha3Bin(k.PublicKey[1:])[12:]
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}
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func (k *KeyPair) Account() *StateObject {
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if k.account == nil {
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k.account = k.state.GetAccount(k.Address())
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}
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return k.account
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}
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// Create transaction, creates a new and signed transaction, ready for processing
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func (k *KeyPair) CreateTx(receiver []byte, value *big.Int, data []string) *Transaction {
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/* TODO
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tx := NewTransaction(receiver, value, data)
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tx.Nonce = k.account.Nonce
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// Sign the transaction with the private key in this key chain
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tx.Sign(k.PrivateKey)
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return tx
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*/
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return nil
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}
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func (k *KeyPair) RlpEncode() []byte {
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return ethutil.EmptyValue().Append(k.PrivateKey).Append(k.PublicKey).Encode()
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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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// The public "singleton" keyring
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var keyRing *KeyRing
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func GetKeyRing(state *State) *KeyRing {
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if keyRing == nil {
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keyRing = &KeyRing{}
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data, _ := ethutil.Config.Db.Get([]byte("KeyRing"))
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it := ethutil.NewValueFromBytes(data).NewIterator()
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for it.Next() {
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v := it.Value()
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keyRing.Add(NewKeyPairFromValue(v))
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}
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}
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return keyRing
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}
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