package crypto import ( "strings" "github.com/ethereum/go-ethereum/ethutil" "github.com/obscuren/secp256k1-go" ) 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(ethutil.Bytes2Hex(k.PrivateKey)), " ") } return k.mnemonic } func (k *KeyPair) AsStrings() (string, string, string, string) { return k.Mnemonic(), ethutil.Bytes2Hex(k.Address()), ethutil.Bytes2Hex(k.PrivateKey), ethutil.Bytes2Hex(k.PublicKey) } func (k *KeyPair) RlpEncode() []byte { return k.RlpValue().Encode() } func (k *KeyPair) RlpValue() *ethutil.Value { return ethutil.NewValue(k.PrivateKey) }