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Handshake failures (#5624) 

* BAEL-2250: Adding files for the article on SSL handshake failure.

* BAEL-2250 cleanup formatting

* Applied review feedback on the article.

* Adding cipher suite and protocol selection in server and client

* Corrected some code conventions.

* Revert: BAEL-2250 cleanup formatting

* Made further changes for the review comments on the tutorial.

* Fixed some formatting issues.
This commit is contained in:
Kumar Chandrakant 2018-11-05 23:51:10 +00:00 committed by Emily Cheyne
parent 433bb89de6
commit e52a4d0ce6
2 changed files with 13 additions and 9 deletions
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14
core-java/src/main/java/com/baeldung/ssl/example/SimpleClient.java
View File

@ -8,22 +8,26 @@ import java.net.Socket;
import javax.net.SocketFactory;
import javax.net.ssl.SSLSocket;
import javax.net.ssl.SSLSocketFactory;
import javax.net.ssl.SSLParameters;
public class SimpleClient {
static void startClient(String host, int port) throws IOException {
static String startClient(String host, int port) throws IOException {
SocketFactory factory = SSLSocketFactory.getDefault();
try (Socket connection = factory.createSocket(host, port)) {
((SSLSocket) connection).setEnabledCipherSuites(
new String[] { "TLS_DHE_DSS_WITH_AES_256_CBC_SHA256"});
((SSLSocket) connection).setEnabledProtocols(
new String[] { "TLSv1.2"});
BufferedReader input = new BufferedReader(
new InputStreamReader(connection.getInputStream()));
System.out.println(input.readLine());
SSLParameters sslParams = new SSLParameters();
sslParams.setEndpointIdentificationAlgorithm("HTTPS");
((SSLSocket) connection).setSSLParameters(sslParams);
BufferedReader input = new BufferedReader(new InputStreamReader(connection.getInputStream()));
return input.readLine();
}
}
public static void main(String[] args) throws IOException {
startClient("localhost", 1234);
System.out.println(startClient("localhost", 8443));
}
}

6
core-java/src/main/java/com/baeldung/ssl/example/SimpleServer.java
View File

@ -4,7 +4,6 @@ import java.io.IOException;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.Date;
import javax.net.ServerSocketFactory;
import javax.net.ssl.SSLServerSocket;
@ -13,6 +12,7 @@ import javax.net.ssl.SSLServerSocketFactory;
public class SimpleServer {
static void startServer(int port) throws IOException {
ServerSocketFactory factory = SSLServerSocketFactory.getDefault();
try (ServerSocket listener = factory.createServerSocket(port)) {
((SSLServerSocket) listener).setNeedClientAuth(true);
((SSLServerSocket) listener).setEnabledCipherSuites(
@ -22,13 +22,13 @@ public class SimpleServer {
while (true) {
try (Socket socket = listener.accept()) {
PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
out.println(new Date().toString());
out.println("Hello World!");
}
}
}
}
public static void main(String[] args) throws IOException {
startServer(1234);
startServer(8443);
}
}