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Hi,<br>
<br>
i checked the server with
<a class="moz-txt-link-freetext" href="https://dev.ssllabs.com/ssltest/analyze.html?d=nfe-homologacao.sefazrs.rs.gov.br">https://dev.ssllabs.com/ssltest/analyze.html?d=nfe-homologacao.sefazrs.rs.gov.br</a><br>
the result is more than bad. I think you should use SSL Context and
define what cipher/protocol you allow<br>
and check the security.property that there is no restriction on key
length.<br>
<br>
Gruß Thomas<br>
<br>
<div class="moz-cite-prefix">Am 06.02.2016 um 00:18 schrieb Langer,
Christoph:<br>
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<p class="MsoNormal"><span lang="EN-US">Hi,<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">while supporting an app
development team, I’m facing a tough TLS issue – maybe you
experts have an idea.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">They try to open an
HTTPS connection to the server URL
<a moz-do-not-send="true"
href="https://nfe-homologacao.sefazrs.rs.gov.br:443/ws/NfeAutorizacao/NFeAutorizacao.asmx">https://nfe-homologacao.sefazrs.rs.gov.br:443/ws/NfeAutorizacao/NFeAutorizacao.asmx</a>.
This is a Web Service of some Brazilian financial authority.
So, what I’m basically doing is this:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">--code snippet--<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">URL url = new
URL(<a class="moz-txt-link-rfc2396E" href="https://nfe-homologacao.sefazrs.rs.gov.br:443/ws/NfeAutorizacao/NFeAutorizacao.asmx">"https://nfe-homologacao.sefazrs.rs.gov.br:443/ws/NfeAutorizacao/NFeAutorizacao.asmx"</a>);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">HttpsURLConnection con =
(HttpsURLConnection)url.openConnection();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">con.setHostnameVerifier(new
DefaultHostnameVerifier());<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">// optional default is
GET<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">con.setRequestMethod("GET");<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">System.out.println("Sending
'GET' request to URL: " + url);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">int responseCode =
con.getResponseCode();<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">System.out.println("Response
Code: " + responseCode);<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">--end code snippet—<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I expect it to return
“403 – not authorized”.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">The coding will work
with JDK7. However, with JDK8, I get this type of exception:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">java.net.SocketException:
Unrecognized Windows Sockets error: 0: recv failed<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.net.SocketInputStream.socketRead0(Native Method)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.net.SocketInputStream.socketRead(SocketInputStream.java:116)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.net.SocketInputStream.read(SocketInputStream.java:170)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.net.SocketInputStream.read(SocketInputStream.java:141)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.InputRecord.readFully(InputRecord.java:465)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.InputRecord.read(InputRecord.java:503)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:973)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.readDataRecord(SSLSocketImpl.java:930)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.AppInputStream.read(AppInputStream.java:105)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.io.BufferedInputStream.fill(BufferedInputStream.java:246)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.io.BufferedInputStream.read1(BufferedInputStream.java:286)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.io.BufferedInputStream.read(BufferedInputStream.java:345)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:704)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:647)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:675)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1536)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1441)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:338)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> …<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I can get it to work in
JDK8 by forcing it to TLSv1 only, e.g. by setting property
-Djdk.tls.client.protocols=TLSv1.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">For JDK9 I even get a
different exception:<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">javax.net.ssl.SSLException:
java.nio.BufferOverflowException<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.Alerts.getSSLException(Alerts.java:214)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1948)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.fatal(SSLSocketImpl.java:1900)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1883)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.handleException(SSLSocketImpl.java:1809)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.AppInputStream.read(AppInputStream.java:173)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.io.BufferedInputStream.fill(BufferedInputStream.java:246)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.io.BufferedInputStream.read1(BufferedInputStream.java:286)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.io.BufferedInputStream.read(BufferedInputStream.java:345)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.http.HttpClient.parseHTTPHeader(HttpClient.java:704)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:647)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.http.HttpClient.parseHTTP(HttpClient.java:675)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1534)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1439)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.net.www.protocol.https.HttpsURLConnectionImpl.getResponseCode(HttpsURLConnectionImpl.java:319)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
com.sap.cl.HttpsURLConnectionTest.sendGETRequest(HttpsURLConnectionTest.java:42)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
com.sap.cl.HttpsURLConnectionTest.main(HttpsURLConnectionTest.java:63)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Caused by:
java.nio.BufferOverflowException<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
java.nio.HeapByteBuffer.put(HeapByteBuffer.java:206)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketInputRecord.decodeInputRecord(SSLSocketInputRecord.java:226)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketInputRecord.decode(SSLSocketInputRecord.java:178)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:1012)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:957)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> at
sun.security.ssl.AppInputStream.read(AppInputStream.java:159)<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"> ... 12 more<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">I’ve debugged a lot
today and tried to get something out of the javax.net.debug
output but I didn’t get any further with this – probably due
to my lack of understanding the details of TLS communication
and its implementation. I know the server is using some
legacy protocol but still I think it should work.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Maybe someone has any
helpful idea? Is it a bug? You can simply try to run my test
code snippet and should see the issue immediately…<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Thanks<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Christoph</span><span
style="font-size:8.0pt;font-family:"Arial",sans-serif;color:#666666;mso-fareast-language:DE"
lang="EN-US"><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
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