Categories:
Audio (13)
Biotech (29)
Bytecode (36)
Database (77)
Framework (7)
Game (7)
General (507)
Graphics (53)
I/O (35)
IDE (2)
JAR Tools (101)
JavaBeans (21)
JDBC (121)
JDK (426)
JSP (20)
Logging (108)
Mail (58)
Messaging (8)
Network (84)
PDF (97)
Report (7)
Scripting (84)
Security (32)
Server (121)
Servlet (26)
SOAP (24)
Testing (54)
Web (15)
XML (309)
Collections:
Other Resources:
SslServerCmd.java - SSL Server Command Example
How to create an SSL server program to run like a command?
✍: FYIcenter
In order to create an SSL server program, you need to do the following:
1. Load the keystore file that contains the server certificate. Remember to specify the keystore password as shown below:
KeyStore ks = KeyStore.getInstance("JKS"); ks.load(new FileInputStream("server.jks"), "fyicenter".toCharArray());
2. Create an KeyManagerFactory instance and initialize it with the keystore. Remember to specify the private key password of the server certificate as shown below:
KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509"); kmf.init(ks, "fyicenter".toCharArray());
3. Create an SSLContext instance and initialize it with Key Managers:
SSLContext ctx = SSLContext.getInstance("TLS"); ctx.init(kmf.getKeyManagers(), null, null);
4. Create an SSLServerSocket instance and set it to listen mode to accept incoming client requests:
SSLServerSocketFactory ssf = ctx.getServerSocketFactory(); SSLServerSocket ss = (SSLServerSocket)ssf.createServerSocket(port); SSLSocket socket = (SSLSocket) ss.accept();
Here is the entire sample program code that takes a simple request and returns a simple reponse using SSL Server Socket:
// Copyright (c) FYIcenter.com import java.net.*; import java.io.*; import javax.net.ssl.*; import java.security.KeyStore; public class SslServerCmd { public static void main(String[] args) throws Exception { int port = 8080; String clientAuth = "No"; System.out.println("USAGE: java SslServerCmd [port [clientAuth]]"); if (args.length >= 1) port = Integer.parseInt(args[0]); if (args.length >= 2) clientAuth = args[1]; KeyStore ks = KeyStore.getInstance("JKS"); ks.load(new FileInputStream("server.jks"), "fyicenter".toCharArray()); KeyManagerFactory kmf = KeyManagerFactory.getInstance("SunX509"); kmf.init(ks, "fyicenter".toCharArray()); SSLContext ctx = SSLContext.getInstance("TLS"); ctx.init(kmf.getKeyManagers(), null, null); SSLServerSocketFactory ssf = ctx.getServerSocketFactory(); SSLServerSocket ss = (SSLServerSocket)ssf.createServerSocket(port); if (clientAuth.equals("Yes")) ss.setNeedClientAuth(true); System.out.println("Listening: port="+port+", clientAuth="+clientAuth); SSLSocket socket = (SSLSocket) ss.accept(); BufferedReader in = new BufferedReader(new InputStreamReader( socket.getInputStream())); String line = in.readLine(); while (line.length()>0) { System.out.println(line); line = in.readLine(); } PrintWriter out = new PrintWriter(new BufferedWriter( new OutputStreamWriter(socket.getOutputStream()))); out.println("HTTP/1.0 200 OK"); out.println("Content-Type: text/html"); out.println("Content-Length: 40"); // including \r\n out.println(); out.println("<html><body>Hello there!</body></html>"); out.flush(); out.close(); in.close(); socket.close(); } }
You can compile and run the above example in a command window. Make sure the keystore file, server.jks, created in the previous tutorial is available.
\fyicenter>\local\jdk-1.8.0\bin\javac SslServerCmd.java \fyicenter>\local\jdk-1.8.0\bin\java SslServerCmd USAGE: java SslServerCmd [port [clientAuth]] Listening: port=8080, clientAuth=No
The SSL server is ready to any client to make a connection.
⇒ Connect to SSL Server Failed with Invalid Certificate
⇐ Create SSL Server Certificate with "keytool"
2018-06-27, 2278🔥, 0💬
Popular Posts:
The Web Services Description Language for Java Toolkit (WSDL4J), Release 1.6.2, allows the creation,...
What Is jaxb-api-2.1.6.jar? Java Architecture for XML Binding (JAXB) is a Java API that allows Java ...
What Is jsse.jar (JDK 6) Java Secure Socket Extension? jsse.jar, Java Secure Socket Extension, is Ja...
How to download and install JDK (Java Development Kit) 6? If you want to write Java applications, yo...
JDK 17 jdk.compiler.jmod is the JMOD file for JDK 17 Compiler tool, which can be invoked by the "jav...