以太坊公钥私钥地址转换

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package test

import (
    "encoding/hex"
    "fmt"
    "github.com/ethereum/go-ethereum/common"
    "github.com/ethereum/go-ethereum/common/hexutil"
    "github.com/ethereum/go-ethereum/crypto"
    "github.com/ethereum/go-ethereum/log"
    "testing"
)

func TestGenerateKey(t *testing.T) {
    key, err := crypto.GenerateKey()
    if err != nil {
        t.Fatalf("failed GenerateKey with %s.", err)
    }

    fmt.Println("private key have 0x   \n", hexutil.Encode(crypto.FromECDSA(key)))
    fmt.Println("private key no 0x \n", hex.EncodeToString(crypto.FromECDSA(key)))

    if err := crypto.SaveECDSA("privatekey", key); err != nil {
        log.Error(fmt.Sprintf("Failed to persist node key: %v", err))
    }

    fmt.Println("public key have 0x   \n", hexutil.Encode(crypto.FromECDSAPub(&key.PublicKey)))
    fmt.Println("public key no 0x \n", hex.EncodeToString(crypto.FromECDSAPub(&key.PublicKey)))

    //由私钥字符串转换私钥
    acc1Key, _ := crypto.HexToECDSA("8a1f9a8f95be41cd7ccb6168179afb4504aefe388d1e14474d32c45c72ce7b7a")
    address1 := crypto.PubkeyToAddress(acc1Key.PublicKey)
    fmt.Println("address ", address1.String())

    dummyAddr := common.HexToAddress("9b2055d370f73ec7d8a03e965129118dc8f5bf83")
    fmt.Println("dummyAddr",dummyAddr.String())

    //字节转地址
    addr3      := common.BytesToAddress([]byte("ethereum"))
    fmt.Println("address ",addr3.String())

    //字节转hash
    hash1 := common.BytesToHash([]byte("topic1"))
    fmt.Println("hash ",hash1.String())


    var testAddrHex = "970e8128ab834e8eac17ab8e3812f010678cf791"
    var testPrivHex = "289c2857d4598e37fb9647507e47a309d6133539bf21a8b9cb6df88fd5232032"
    key1, _ := crypto.HexToECDSA(testPrivHex)
    addrtest := common.HexToAddress(testAddrHex)

    msg := crypto.Keccak256([]byte("foo"))
    sig, err := crypto.Sign(msg, key1)
    recoveredPub, err := crypto.Ecrecover(msg, sig)
    pubKey, _ := crypto.UnmarshalPubkey(recoveredPub)
    recoveredAddr := crypto.PubkeyToAddress(*pubKey)

    // should be equal to SigToPub
    recoveredPub2, _ := crypto.SigToPub(msg, sig)
    recoveredAddr2 := crypto.PubkeyToAddress(*recoveredPub2)

    fmt.Println("addrtest ",addrtest.String())
    fmt.Println("recoveredAddr ",recoveredAddr.String())
    fmt.Println("recoveredAddr2 ",recoveredAddr2.String())
}