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POOpenSSL C++ server + Java client : get "alert certificate unknown" error
 

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  1. POOpenSSL C++ server + Java client : get "alert certificate unknown" error
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    <p>I have created a C++ server and client using OpenSSL. I have set up a root certificate from which i have signed a client and a server certificate. Everything works fine I can connect and send data both ways. </p> <p>I then made a client application in Java. Followed this tutorial to make a JKS certificate out of my clientcert.pem and clientkey.pem <a href="http://www.agentbob.info/agentbob/79-AB.html" rel="nofollow">http://www.agentbob.info/agentbob/79-AB.html</a></p> <p>jave code looks like this:</p> <pre><code> SSLSocketFactory factory = null; try { SSLContext ctx; KeyManagerFactory kmf; KeyStore ks; char[] passphrase = "android".toCharArray(); ctx = SSLContext.getInstance("TLS"); kmf = KeyManagerFactory.getInstance("SunX509"); ks = KeyStore.getInstance("JKS"); ks.load(new FileInputStream("keystore.ImportKey"), passphrase); kmf.init(ks, passphrase); ctx.init(kmf.getKeyManagers(), null, null); factory = ctx.getSocketFactory(); } catch (Exception e) { e.printStackTrace(); } SSLSocket socket; try { socket = (SSLSocket) factory.createSocket("server", 10443); PrintWriter out; out = new PrintWriter(new BufferedWriter(new OutputStreamWriter( socket.getOutputStream()))); out.println("Hello from SSL client!"); out.println(); out.flush(); out.close(); socket.close(); } catch (IOException e) { e.printStackTrace(); } </code></pre> <p>However when it tries to connect i get an error in my C++ server when calling SSL_accept(ssl). I checked the error and it prints out: error:14094416:SSL routines:SSL3_READ_BYTES:sslv3 alert certificate unknown</p> <p>Any idea why the certificate fails? Is there any tutorial anywhere that shows how to create certificates for both OpenSSL and java?</p>
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    1. USMiro Bucko
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    1. COHave you loaded the root corresponding to your client certificate in your OpenSSL Server?
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      1. POOpenSSL C++ server + Java client : get "alert certificate unknown" error
      1. USJay
    2. COActually I am now getting the following exception on the java client >>>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<<< when I created my keystore.ImportKey I have used the root certificate and the client key .. is this correct?
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      1. POOpenSSL C++ server + Java client : get "alert certificate unknown" error
      1. USMiro Bucko
 

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