使用 crypto/tls 时,您可以查询 ConnectionState 的任何 Conn 对象:


func (c *Conn) ConnectionState() ConnectionState

ConnectionState 结构包含有关客户端证书的信息:


type ConnectionState struct {

        PeerCertificates            []*x509.Certificate   // certificate chain presented by remote peer

}

该x509.Certificate应该相当简单的与工作。


在服务器请求客户端身份验证之前,您必须使用服务器证书、客户端 CA(否则您必须手动验证信任链,您真的不想要)和 tls.RequireAndVerifyClientCert 配置连接。例如:


// Load my SSL key and certificate

cert, err := tls.LoadX509KeyPair(settings.MyCertificateFile, settings.MyKeyFile)

checkError(err, "LoadX509KeyPair")


// Load the CA certificate for client certificate validation

capool := x509.NewCertPool()

cacert, err := ioutil.ReadFile(settings.CAKeyFile)

checkError(err, "loadCACert")

capool.AppendCertsFromPEM(cacert)


// Prepare server configuration

config := tls.Config{Certificates: []tls.Certificate{cert}, ClientCAs: capool, ClientAuth: tls.RequireAndVerifyClientCert}

config.NextProtos = []string{"http/1.1"}

config.Rand = rand.Reader