Hostname in certificate didn't match?

anon Published at Java

anon :

I try to connect to a server with a self-signed certificate. I use this code to accept all certificates.

public class CertificateAcceptor {

    public void initializeTrustManager() {
        try {
            SSLContext context = SSLContext.getInstance("SSL");
            context.init(null, createTrustManager(), new SecureRandom());
            HttpsURLConnection.setDefaultSSLSocketFactory(context.getSocketFactory());

        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        } catch (KeyManagementException e) {
            e.printStackTrace();
        }
    }

    private TrustManager[] createTrustManager() {

    TrustManager[] trustAllCerts = new TrustManager[] {
            new X509TrustManager() {

                @Override
                public X509Certificate[] getAcceptedIssuers() {
                    return null;
                }

                @Override
                public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                    // leave blank to trust all clients
                }

                @Override
                public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {
                    // leave blank to trust all servers
                    for (X509Certificate c : chain) {
                        System.out.println(c.toString());
                    }
                }

            }
        };
        return trustAllCerts;
    }

}

But nevertheless i get the following error:

javax.net.ssl.SSLException: hostname in certificate didn't match: <xyz.ch> != <localhost>
    at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:220)
    at org.apache.http.conn.ssl.BrowserCompatHostnameVerifier.verify(BrowserCompatHostnameVerifier.java:54)
    at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:149)
    at org.apache.http.conn.ssl.AbstractVerifier.verify(AbstractVerifier.java:130)
    at org.apache.http.conn.ssl.SSLSocketFactory.connectSocket(SSLSocketFactory.java:339)
    at org.apache.http.impl.conn.DefaultClientConnectionOperator.openConnection(DefaultClientConnectionOperator.java:123)
    at org.apache.http.impl.conn.AbstractPoolEntry.open(AbstractPoolEntry.java:147)
    at org.apache.http.impl.conn.AbstractPooledConnAdapter.open(AbstractPooledConnAdapter.java:108)
    at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:415)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:641)
    at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:576)

I'm sure that my Certificate code is executed, so what could be the problem?

Prashant Bhate :

You may use SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER

SSLSocketFactory sf = new SSLSocketFactory(
    SSLContext.getInstance("TLS"),
    SSLSocketFactory.ALLOW_ALL_HOSTNAME_VERIFIER);
Scheme sch = new Scheme("https", 443, sf);
httpclient.getConnectionManager().getSchemeRegistry().register(sch);

HttpGet httpget = new HttpGet("https://host/");
...
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