Java – keytool creates a trusted self signed certificate

• Java

I'm trying to create a self signed certificate using (Java) keytool, but when I try to use it, I get the following exception (see the entire exception at the bottom)

...<5 more exceptions above this>
Caused by: sun.security.validator.ValidatorException: No trusted certificate found
        at sun.security.validator.SimpleValidator.buildTrustedChain(SimpleValidator.java:304)
        at sun.security.validator.SimpleValidator.engineValidate(SimpleValidator.java:107)
        at sun.security.validator.Validator.validate(Validator.java:203)
        at com.sun.net.ssl.internal.ssl.x509trustmanagerImpl.checkServerTrusted(x509trustmanagerImpl.java:172)
        at com.sun.net.ssl.internal.ssl.Jssex509trustmanager.checkServerTrusted(SSLContextImpl.java:320)
        at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:841)
        ... 22 more

I know I can bypass this with this Code:

import javax.net.ssl.HostnameVerifier;
import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLSession;

HostnameVerifier hv = new HostnameVerifier() {
    public boolean verify(String urlHostName,SSLSession session) {
        System.out.println("Warning: URL Host: " + urlHostName + " vs. " + session.getPeerHost());
        return true;
    }
};

HttpsURLConnection.setDefaultHostnameVerifier(hv);

(source)

But I'm not interested in this solution because I think it will create security vulnerabilities If I am wrong, please correct me

Who can point me in the right direction? I'm testing locally now, so it's easy to change I can access server code, client code and Keystore file

to update

I tried to use one for the client and server Keystore file, but to simplify my problem, I created server Keystore (see below) and client Truststore (see below) I have reason to believe that the certificate is correct, but I would appreciate it if someone could prove it

server. keystore

hostname[username:/this/is/a/path][711]% keytool -list -keystore server.keystore -v
Enter keystore password:

Keystore type: JKS
Keystore provider: SUN

Your keystore contains 1 entry

Alias name: hostname
Creation date: Feb 4,2010
Entry type: PrivateKeyEntry
Certificate chain length: 1
Certificate[1]:
Owner: CN=hostname,OU=hostname,O=hostname,L=hostname,ST=hostname,C=hostname
Issuer: CN=hostname,C=hostname
Serial number: 4b6b0ea7
Valid from: Thu Feb 04 13:15:03 EST 2010 until: Wed May 05 14:15:03 EDT 2010
Certificate fingerprints:
         MD5:  81:C0:3F:EC:AD:5B:7B:C4:DA:08:CC:D7:11:1F:1D:38
         SHA1: F1:78:AD:C8:D0:3A:4C:0C:9A:4F:89:C0:2A:2F:E2:E6:D5:13:96:40
         Signature algorithm name: SHA1withDSA
         Version: 3


*******************************************
*******************************************

client. truststore

hostname[username:/this/is/a/path][713]% keytool -list -keystore client.truststore -v
Enter keystore password:

Keystore type: JKS
Keystore provider: SUN

Your keystore contains 1 entry

Alias name: mykey
Creation date: Feb 4,2010
Entry type: trustedCertEntry

Owner: CN=hostname,C=hostname
Serial number: 4b6b0ea7
Valid from: Thu Feb 04 13:15:03 EST 2010 until: Wed May 05 14:15:03 EDT 2010
Certificate fingerprints:
         MD5:  81:C0:3F:EC:AD:5B:7B:C4:DA:08:CC:D7:11:1F:1D:38
         SHA1: F1:78:AD:C8:D0:3A:4C:0C:9A:4F:89:C0:2A:2F:E2:E6:D5:13:96:40
         Signature algorithm name: SHA1withDSA
         Version: 3


*******************************************
*******************************************

to update

I think it might be useful to include the entire exception:

javax.xml.soap.soAPException: java.io.IOException: Could not transmit message
        at org.jboss.ws.core.soap.soAPConnectionImpl.callInternal(SOAPConnectionImpl.java:115)
        at org.jboss.ws.core.soap.soAPConnectionImpl.call(SOAPConnectionImpl.java:66)
        at com.alcatel.tpapps.common.utils.soAPClient.execute(SOAPClient.java:193)
        at com.alcatel.tpapps.common.utils.soAPClient.main(SOAPClient.java:280)
Caused by: java.io.IOException: Could not transmit message
        at org.jboss.ws.core.client.RemotingConnectionImpl.invoke(RemotingConnectionImpl.java:192)
        at org.jboss.ws.core.client.soAPRemotingConnection.invoke(SOAPRemotingConnection.java:77)
        at org.jboss.ws.core.soap.soAPConnectionImpl.callInternal(SOAPConnectionImpl.java:106)
        ... 3 more
Caused by: org.jboss.remoting.CannotConnectException: Can not connect http client invoker. sun.security.validator.ValidatorException: No trusted certificate found.
        at org.jboss.remoting.transport.http.HTTPClientInvoker.useHttpURLConnection(HTTPClientInvoker.java:368)
        at org.jboss.remoting.transport.http.HTTPClientInvoker.transport(HTTPClientInvoker.java:148)
        at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:141)
        at org.jboss.remoting.Client.invoke(Client.java:1858)
        at org.jboss.remoting.Client.invoke(Client.java:718)
        at org.jboss.ws.core.client.RemotingConnectionImpl.invoke(RemotingConnectionImpl.java:171)
        ... 5 more
Caused by: javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: No trusted certificate found
        at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Alerts.java:150)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1584)
        at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:174)
        at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Handshaker.java:168)
        at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:848)
        at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:106)
        at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:495)
        at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:433)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:877)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1089)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1116)
        at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1100)
        at sun.net.www.protocol.https.HttpsClient.afterConnect(HttpsClient.java:402)
        at sun.net.www.protocol.https.AbstractDelegateHttpsURLConnection.connect(AbstractDelegateHttpsURLConnection.java:170)
        at sun.net.www.protocol.http.HttpURLConnection.getOutputStream(HttpURLConnection.java:857)
        at sun.net.www.protocol.https.HttpsURLConnectionImpl.getOutputStream(HttpsURLConnectionImpl.java:230)
        at org.jboss.remoting.transport.http.HTTPClientInvoker.useHttpURLConnection(HTTPClientInvoker.java:288)
        ... 10 more
Caused by: sun.security.validator.ValidatorException: No trusted certificate found
        at sun.security.validator.SimpleValidator.buildTrustedChain(SimpleValidator.java:304)
        at sun.security.validator.SimpleValidator.engineValidate(SimpleValidator.java:107)
        at sun.security.validator.Validator.validate(Validator.java:203)
        at com.sun.net.ssl.internal.ssl.x509trustmanagerImpl.checkServerTrusted(x509trustmanagerImpl.java:172)
        at com.sun.net.ssl.internal.ssl.Jssex509trustmanager.checkServerTrusted(SSLContextImpl.java:320)
        at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(ClientHandshaker.java:841)
        ... 22 more

Solution

You need to "build trust" between the server and the client (I assume you only need server-side authentication) This is because you use a self - signed certificate

On the server side:

keytool -keystore <keystore file> -alias <alias> -export -file <certfilename>.cert

Will Copy the cert file to the client, and then:

keytool -keystore <truststore file> -alias <alias> -import -file <certfilename>.cert
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