ethcrypto/keypair.go


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package ethcrypto

import (
    "github.com/ethereum/eth-go/ethutil"
    "github.com/obscuren/secp256k1-go"
)

type KeyPair struct {
    PrivateKey []byte
    PublicKey  []byte

    // 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 {
    return Sha3Bin(k.PublicKey[1:])[12:]
}

func (k *KeyPair) RlpEncode() []byte {
    return k.RlpValue().Encode()
}

func (k *KeyPair) RlpValue() *ethutil.Value {
    return ethutil.NewValue(k.PrivateKey)
}