如何在javaSSL中加载本地客户端证书

Question

我尝试使用TLS连接到服务器的套接字，该套接字需要使用此客户端进行客户端身份验证。java代码

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;

public class Client {
public static void main(String[] args){
System.setProperty("javax.net.ssl.trustStore", "/home/toni/.keystore");
System.setProperty("javax.net.ssl.trustStorePassword", "jOk<>123");

String host = "localhost";
Integer port = 8000;
byte[] data = new byte[4096];

SSLSocketFactory factory = (SSLSocketFactory) SSLSocketFactory.getDefault();
try(
SSLSocket socket = (SSLSocket) factory.createSocket(host, port);
InputStream in = socket.getInputStream();
OutputStream out = socket.getOutputStream();
){
out.write("Hi, I am client".getBytes());
in.read(data);
System.out.println(new String(data));
} catch (IOException ex) {
Logger.getLogger(Client.class.getName()).log(Level.SEVERE, null, ex);
}
}
}

但似乎client.java没有将本地客户端证书发送到服务器，因此服务器返回一个错误：

ssl.SSLError: [SSL: PEER_DID_NOT_RETURN_A_CERTIFICATE] peer did not return a certificate (_ssl.c:852)

这是我的keytool -list

Keystore type: PKCS12
Keystore provider: SUN
Your keystore contains 2 entries
client, Aug 20, 2020, PrivateKeyEntry, 
Certificate fingerprint (SHA-256): 41:36:F0:A5:38:DA:99:D1:6A:B1:44:87:9C:00:CF:73:FC:96:48:22:79:B5:3A:9A:ED:44:C8:AA:CA:97:45:5E
localhost, Aug 20, 2020, trustedCertEntry, 
Certificate fingerprint (SHA-256): 1A:CB:DA:E3:ED:BF:E0:C8:C1:13:13:8C:A4:FB:20:48:53:54:80:D3:36:14:35:9C:EF:AF:5B:16:E2:54:97:B8

如何让我的client.java加载上面的client别名证书，并在与服务器握手时使用它？

Answer 1

我刚刚了解了keyStore和trustStore之间的区别。实际上，在java中，我不需要在客户端显式指定客户端证书。我只需要这样声明我的KeyStore：

String file = "/home/toni/.keystore";
String password = "jOk<>123";
System.setProperty("javax.net.ssl.trustStore", file);
System.setProperty("javax.net.ssl.trustStorePassword", password);
System.setProperty("javax.net.ssl.keyStore", file);
System.setProperty("javax.net.ssl.keyStorePassword", password);