SSL socket connection between PHP client and Java server

Question

I'm attempting to setup an SSL connection between a PHP client and a Java server. I don't know a whole lot about SSL and I'm getting very confused with this.

The connection doesn't need to be trusted or verified, it just has to encrypt the data to make it safe for transfer.

The PHP client is able to connect (acknowledges a connection) to the Java server, but upon the handshake between the two, I reveive the following error in Java:

javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHandshakeException: no cipher suites in common
    at sun.security.ssl.SSLSocketImpl.checkEOF(SSLSocketImpl.java:1458)
    at sun.security.ssl.AppInputStream.read(AppInputStream.java:92)
    at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:283)
    at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:325)
    at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:177)
    at java.io.InputStreamReader.read(InputStreamReader.java:184)
    at java.io.BufferedReader.fill(BufferedReader.java:154)
    at java.io.BufferedReader.readLine(BufferedReader.java:317)
    at java.io.BufferedReader.readLine(BufferedReader.java:382)
    at com.test.ConnectionHandler.getRequest(ConnectionHandler.java:23)
    at com.test.Interaction.run(Interaction.java:35)
    at java.lang.Thread.run(Thread.java:722)
Caused by: javax.net.ssl.SSLHandshakeException: no cipher suites in common
    at sun.security.ssl.Alerts.getSSLException(Alerts.java:192)
    at sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1868)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:276)
    at sun.security.ssl.Handshaker.fatalSE(Handshaker.java:266)
    at sun.security.ssl.ServerHandshaker.chooseCipherSuite(ServerHandshaker.java:892)
    at sun.security.ssl.ServerHandshaker.clientHello(ServerHandshaker.java:620)
    at sun.security.ssl.ServerHandshaker.processMessage(ServerHandshaker.java:167)
    at sun.security.ssl.Handshaker.processLoop(Handshaker.java:868)
    at sun.security.ssl.Handshaker.process_record(Handshaker.java:804)
    at sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:998)
    at sun.security.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1294)
    at sun.security.ssl.SSLSocketImpl.writeRecord(SSLSocketImpl.java:685)
    at sun.security.ssl.AppOutputStream.write(AppOutputStream.java:111)
    at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:221)
    at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:291)
    at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:295)
    at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:141)
    at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:229)
    at java.io.BufferedWriter.flush(BufferedWriter.java:254)
    at java.io.PrintWriter.newLine(PrintWriter.java:482)
    at java.io.PrintWriter.println(PrintWriter.java:629)
    at java.io.PrintWriter.println(PrintWriter.java:740)
    at com.test.ConnectionHandler.println(ConnectionHandler.java:28)
    at com.test.Interaction.run(Interaction.java:29)
    ... 1 more

and these errors in PHP:

Warning: fsockopen(): SSL operation failed with code 1. OpenSSL Error messages:
error:14077410:SSL routines:func(119):reason(1040) in /var/www/html/inc/node.class.php on line 48

Warning: fsockopen(): Failed to enable crypto in /var/www/html/inc/node.class.php on line 48

Warning: fsockopen(): unable to connect to ssl://127.0.0.1:30627 (Unknown error) in /var/www/html/inc/node.class.php on line 48

This is my code in Java which handles the socket setup:

SSLServerSocketFactory socketfactory;
SSLServerSocket ssock;

SSLContext sslContext = SSLContext.getInstance( "SSL" );

KeyStore ks = KeyStore.getInstance("JKS");
InputStream ksIs = ClassLoader.class.getResourceAsStream("resources/keystore.jks");
try {
    ks.load(ksIs, "password".toCharArray());
} catch (CertificateException e) {
    e.printStackTrace();
} finally {
    if (ksIs != null) {
        ksIs.close();
    }
}

KeyManagerFactory kmf = KeyManagerFactory.getInstance(KeyManagerFactory.getDefaultAlgorithm());
kmf.init(ks, "password".toCharArray());

sslContext.init( kmf.getKeyManagers(), null, null );
socketfactory = sslContext.getServerSocketFactory();

socketfactory = (SSLServerSocketFactory) SSLServerSocketFactory.getDefault();

ssock = (SSLServerSocket) socketfactory.createServerSocket(myPort);

for(String item : ssock.getEnabledCipherSuites()) {
    System.out.println(item);
}

while(true) {
    SSLSocket sock = (SSLSocket) ssock.accept();

    new Interaction(sock);
}

This is my PHP code which handles the connection to the Java server: (Starting at line 48)

$this->stream = fsockopen("ssl://127.0.0.1", 30627, $errno, $errstr);
if(!$this->stream) {
  return array(
    'errornum' => $errno,
    'errorstr' => $errstr,
  );
} else {
  return true;
}

Can someone help explain what I'm doing wrong or provide a solution?

--Edit

I've tried using a Java client to connect to see where the problem lies. But I still receive the same error and this is shown on the Java Client:

javax.net.ssl.SSLException: Connection has been shutdown: javax.net.ssl.SSLHands
hakeException: Received fatal alert: handshake_failure
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.checkEOF(SSLSocketImpl.jav
a:1293)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.checkWrite(SSLSocketImpl.j
ava:1305)
        at com.sun.net.ssl.internal.ssl.AppOutputStream.write(AppOutputStream.ja
va:43)
        at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
        at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
        at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276)
        at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122)
        at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212)
        at java.io.BufferedWriter.flush(BufferedWriter.java:236)
        at Main.main(Main.java:55)
Caused by: javax.net.ssl.SSLHandshakeException: Received fatal alert: handshake_
failure
        at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:174)
        at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:136)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.recvAlert(SSLSocketImpl.ja
va:1720)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.j
ava:954)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SS
LSocketImpl.java:1138)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readDataRecord(SSLSocketIm
pl.java:753)
        at com.sun.net.ssl.internal.ssl.AppInputStream.read(AppInputStream.java:
75)
        at sun.nio.cs.StreamDecoder.readBytes(StreamDecoder.java:264)
        at sun.nio.cs.StreamDecoder.implRead(StreamDecoder.java:306)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:158)
        at java.io.InputStreamReader.read(InputStreamReader.java:167)
        at java.io.BufferedReader.fill(BufferedReader.java:136)
        at java.io.BufferedReader.readLine(BufferedReader.java:299)
        at java.io.BufferedReader.readLine(BufferedReader.java:362)
        at Main$Output.run(Main.java:77)
        at java.lang.Thread.run(Thread.java:662)

Answer 1

I figured out that the problem was with loading the keystore. The way I was retrieving it as a resource wasn't working.

I got the keystore to load correctly and everything then worked fine.