这是一个代码示例，演示了Go中密钥的编码和解码。知道您需要连接几个步骤会有所帮助。加密算法是第一步，在这种情况下为ECDSA密钥。然后，您需要标准编码，x509是最常用的标准。最后，您需要一种文件格式，PEM也是常用的一种。这是当前最常用的组合，但是可以随意替换任何其他算法或编码。

func encode(privateKey *ecdsa.PrivateKey, publicKey *ecdsa.PublicKey) (string, string) {
    x509Encoded, _ := x509.MarshalECPrivateKey(privateKey)
    pemEncoded := pem.EncodeToMemory(&pem.Block{Type: "PRIVATE KEY", Bytes: x509Encoded})

    x509EncodedPub, _ := x509.MarshalPKIXPublicKey(publicKey)
    pemEncodedPub := pem.EncodeToMemory(&pem.Block{Type: "PUBLIC KEY", Bytes: x509EncodedPub})

    return string(pemEncoded), string(pemEncodedPub)
}

func decode(pemEncoded string, pemEncodedPub string) (*ecdsa.PrivateKey, *ecdsa.PublicKey) {
    block, _ := pem.Decode([]byte(pemEncoded))
    x509Encoded := block.Bytes
    privateKey, _ := x509.ParseECPrivateKey(x509Encoded)

    blockPub, _ := pem.Decode([]byte(pemEncodedPub))
    x509EncodedPub := blockPub.Bytes
    genericPublicKey, _ := x509.ParsePKIXPublicKey(x509EncodedPub)
    publicKey := genericPublicKey.(*ecdsa.PublicKey)

    return privateKey, publicKey
}

func test() {
    privateKey, _ := ecdsa.GenerateKey(elliptic.P384(), rand.Reader)
    publicKey := &privateKey.PublicKey

    encPriv, encPub := encode(privateKey, publicKey)

    fmt.Println(encPriv)
    fmt.Println(encPub)

    priv2, pub2 := decode(encPriv, encPub)

    if !reflect.DeepEqual(privateKey, priv2) {
        fmt.Println("Private keys do not match.")
    }
    if !reflect.DeepEqual(publicKey, pub2) {
        fmt.Println("Public keys do not match.")
    }
}