Re: restlets : communicating in SSL with tomcat
Hi Bruno, It's well working , thanx... To complete your post, below is a client code for the example we made : Context ctx = new Context(); Client client = new Client(ctx, Protocol.HTTPS); ClientResource service = new ClientResource( https://192.168.2.199/./status;); ctx.getParameters().add(truststorePath,C:/Program Files/Java/jre6/lib/security/mycacerts.jks); ctx.getParameters().add(truststorePassword,our pswd); ctx.getParameters().add(truststoreType,JKS); service.setNext(client); Representation rep = service.get(); regards Xavier 2010/8/25 Bruno Harbulot bruno.harbu...@manchester.ac.uk On 25/08/10 13:53, Xavier Méhaut wrote: Hi Bruno, Actually our architecture is the following : A PC runs a restlet server locally (withou a servlet container); the resources served by this server call themselves other restlets which are located into another restlet serveron another PC, but this restlet server one is hosted in Tomcat with SSL setted. The problem occurs when trying to call these remote restlets from the first PC. SSL is managed by tomcat and the certificate has been generated by java keygen. Ah, this makes sense. When you say the certificate has been generated by java keygen, presumably, you haven't sent the certificate request to a Certification Authority, so you're effectively using a self-signed certificate on your Tomcat server (presumably, you meant keytool instead of keygen too?). There's nothing wrong with that (although this could become an issue if you expect other clients to connect). However, for the client to be able to connect, you need to tell it to trust your server's certificate explicitly. This means that the trust store you're using on the client side needs to contain this self-signed certificate. The default trust store in Java is usually in $JAVA_HOME/lib/security/cacerts (and the default password is changeme). I wouldn't necessarily modify that file, but you can take a copy of it and import the certificate you've generated on the server into it. * On the server: 1. Find the alias you need from the keystore (otherwise, the default will be mykey: keytool -list -keystore keystore.jks You should see a list like this: Certificate fingerprint (MD5): 5B:91:3D:BB:A7:0D:04:F9:92:A0:79:0E:EA:30:45:6A the alias name, 25-Aug-2010, PrivateKeyEntry, 2. Export the certificate: keytool -exportcert -keystore keystore.jks -alias the alias name -file servercert.der (Note that you only export the certificate here, not the private key, which is not to be distributed.) * On the client: 1. It's not strictly required, but I would copy $JAVA_HOME/lib/security/cacerts to a file that doesn't affect the whole system, let's say mycacerts.jks. 2. Import the server certificate into that store: keytool -importcert -keystore mycacerts.jks -trustcacerts -file servercert.der (Optionally, use '-alias some alias name' if you want it to be easier to identity later on in the list. I'd go for the host name there, but it's just an internal indication in the store.) 3. Configure your Restlet client to use that as a trust store. If you think it's a good idea to use this as a trust store across everything that runs within that JVM, you can use the javax.net.ssl.trustStore properties. Otherwise, you can set it on a per-connector basis, using the Context parameters: parameters.add(truststorePath, pathmycacerts.jks); parameters.add(truststorePassword, password); // parameters.add(truststoreType, JKS); Best wishes, Bruno. -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2651208 -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2651698
Re: restlets : communicating in SSL with tomcat
Just to clarify, if I understand well, you're using a ClientResource from within the Restlet environment running within Tomcat (so effectively, your server is a client in that respect)? How do you configure SSL on the client connector? A priori, it looks like there's something wrong with the trust store settings: either the server to which you're trying to connect has a certificate that's not trusted by the default trust store available (if you haven't specified anything), or the trust store is set up for something that doesn't have the required CA certificate. Best wishes, Bruno. On 24/08/10 12:48, Xavier Méhaut wrote: We use tomcat 5.5 with SSL, and restlet 2.0... The problem occurs when trying to access through the ClientResource setted with HTTPS protocol... regards Xavier 24 août 2010 11:56:38 org.restlet.engine.http.connector.Connection writeMessage ATTENTION: Exception while writing the message headers. javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source) at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source) at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(Unknown Source) at com.sun.net.ssl.internal.ssl.AppOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.flushBuffer(Unknown Source) at java.io.BufferedOutputStream.flush(Unknown Source) at org.restlet.engine.http.connector.Connection.writeMessageHead(Connection.java:919) at org.restlet.engine.http.connector.Connection.writeMessageHead(Connection.java:933) at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:806) at org.restlet.engine.http.connector.ClientConnection.writeMessage(ClientConnection.java:297) at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:966) at org.restlet.engine.http.connector.Controller$1.run(Controller.java:81) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(Unknown Source) at sun.security.validator.PKIXValidator.engineValidate(Unknown Source) at sun.security.validator.Validator.validate(Unknown Source) at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(Unknown Source) at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) ... 19 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source) at java.security.cert.CertPathBuilder.build(Unknown Source) ... 25 more 2010/8/24 Bruno Harbulot bruno.harbu...@manchester.ac.uk mailto:bruno.harbu...@manchester.ac.uk Hi Xavier, If you're using Restlet within a Servlet environment, it's the container configuration that matters regarding SSL. If you have configured SSL on your Tomcat container, this should be enough. What kind of errors do you get (and which version of Restlet, just in case)? Best wishes, Bruno. On 23/08/2010 15:39, Xavier M. wrote: Hello, We use Tomcat with SSL configuration to host our restlet application. Up to now we don't succeed accessing restlets in ssl mode ; Do we need to add ssl parameters in restlets too, or is the tomcat configuration sufficient? regards Xavier -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2650640
Re: restlets : communicating in SSL with tomcat
Hi Bruno, Actually our architecture is the following : A PC runs a restlet server locally (withou a servlet container); the resources served by this server call themselves other restlets which are located into another restlet serveron another PC, but this restlet server one is hosted in Tomcat with SSL setted. The problem occurs when trying to call these remote restlets from the first PC. SSL is managed by tomcat and the certificate has been generated by java keygen. regards xavier 2010/8/25 Bruno Harbulot bruno.harbu...@manchester.ac.uk Just to clarify, if I understand well, you're using a ClientResource from within the Restlet environment running within Tomcat (so effectively, your server is a client in that respect)? How do you configure SSL on the client connector? A priori, it looks like there's something wrong with the trust store settings: either the server to which you're trying to connect has a certificate that's not trusted by the default trust store available (if you haven't specified anything), or the trust store is set up for something that doesn't have the required CA certificate. Best wishes, Bruno. On 24/08/10 12:48, Xavier Méhaut wrote: We use tomcat 5.5 with SSL, and restlet 2.0... The problem occurs when trying to access through the ClientResource setted with HTTPS protocol... regards Xavier 24 août 2010 11:56:38 org.restlet.engine.http.connector.Connection writeMessage ATTENTION: Exception while writing the message headers. javax.net.ssl.SSLHandshakeException: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at com.sun.net.ssl.internal.ssl.Alerts.getSSLException(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.fatal(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.fatalSE(Unknown Source) at com.sun.net.ssl.internal.ssl.ClientHandshaker.serverCertificate(Unknown Source) at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Unknown Source) at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(Unknown Source) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.writeRecord(Unknown Source) at com.sun.net.ssl.internal.ssl.AppOutputStream.write(Unknown Source) at java.io.BufferedOutputStream.flushBuffer(Unknown Source) at java.io.BufferedOutputStream.flush(Unknown Source) at org.restlet.engine.http.connector.Connection.writeMessageHead(Connection.java:919) at org.restlet.engine.http.connector.Connection.writeMessageHead(Connection.java:933) at org.restlet.engine.http.connector.Connection.writeMessage(Connection.java:806) at org.restlet.engine.http.connector.ClientConnection.writeMessage(ClientConnection.java:297) at org.restlet.engine.http.connector.Connection.writeMessages(Connection.java:966) at org.restlet.engine.http.connector.Controller$1.run(Controller.java:81) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at java.lang.Thread.run(Unknown Source) Caused by: sun.security.validator.ValidatorException: PKIX path building failed: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.validator.PKIXValidator.doBuild(Unknown Source) at sun.security.validator.PKIXValidator.engineValidate(Unknown Source) at sun.security.validator.Validator.validate(Unknown Source) at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.validate(Unknown Source) at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) at com.sun.net.ssl.internal.ssl.X509TrustManagerImpl.checkServerTrusted(Unknown Source) ... 19 more Caused by: sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target at sun.security.provider.certpath.SunCertPathBuilder.engineBuild(Unknown Source) at java.security.cert.CertPathBuilder.build(Unknown Source) ... 25 more 2010/8/24 Bruno Harbulot bruno.harbu...@manchester.ac.uk mailto:bruno.harbu...@manchester.ac.uk Hi Xavier, If you're using Restlet within a Servlet environment, it's the container configuration that matters regarding SSL. If you have configured SSL on your Tomcat container, this should be
Re: restlets : communicating in SSL with tomcat
On 25/08/10 13:53, Xavier Méhaut wrote: Hi Bruno, Actually our architecture is the following : A PC runs a restlet server locally (withou a servlet container); the resources served by this server call themselves other restlets which are located into another restlet serveron another PC, but this restlet server one is hosted in Tomcat with SSL setted. The problem occurs when trying to call these remote restlets from the first PC. SSL is managed by tomcat and the certificate has been generated by java keygen. Ah, this makes sense. When you say the certificate has been generated by java keygen, presumably, you haven't sent the certificate request to a Certification Authority, so you're effectively using a self-signed certificate on your Tomcat server (presumably, you meant keytool instead of keygen too?). There's nothing wrong with that (although this could become an issue if you expect other clients to connect). However, for the client to be able to connect, you need to tell it to trust your server's certificate explicitly. This means that the trust store you're using on the client side needs to contain this self-signed certificate. The default trust store in Java is usually in $JAVA_HOME/lib/security/cacerts (and the default password is changeme). I wouldn't necessarily modify that file, but you can take a copy of it and import the certificate you've generated on the server into it. * On the server: 1. Find the alias you need from the keystore (otherwise, the default will be mykey: keytool -list -keystore keystore.jks You should see a list like this: Certificate fingerprint (MD5): 5B:91:3D:BB:A7:0D:04:F9:92:A0:79:0E:EA:30:45:6A the alias name, 25-Aug-2010, PrivateKeyEntry, 2. Export the certificate: keytool -exportcert -keystore keystore.jks -alias the alias name -file servercert.der (Note that you only export the certificate here, not the private key, which is not to be distributed.) * On the client: 1. It's not strictly required, but I would copy $JAVA_HOME/lib/security/cacerts to a file that doesn't affect the whole system, let's say mycacerts.jks. 2. Import the server certificate into that store: keytool -importcert -keystore mycacerts.jks -trustcacerts -file servercert.der (Optionally, use '-alias some alias name' if you want it to be easier to identity later on in the list. I'd go for the host name there, but it's just an internal indication in the store.) 3. Configure your Restlet client to use that as a trust store. If you think it's a good idea to use this as a trust store across everything that runs within that JVM, you can use the javax.net.ssl.trustStore properties. Otherwise, you can set it on a per-connector basis, using the Context parameters: parameters.add(truststorePath, pathmycacerts.jks); parameters.add(truststorePassword, password); // parameters.add(truststoreType, JKS); Best wishes, Bruno. -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2651208
restlets : communicating in SSL with tomcat
Hello, We use Tomcat with SSL configuration to host our restlet application. Up to now we don't succeed accessing restlets in ssl mode ; Do we need to add ssl parameters in restlets too, or is the tomcat configuration sufficient? regards Xavier -- http://restlet.tigris.org/ds/viewMessage.do?dsForumId=4447dsMessageId=2650341
