Re: Why will Tomcat not accept EC cipher suites?
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John,
On 1/8/18 10:23 PM, john.e.gr...@wellsfargo.com.INVALID wrote:
> Chris,
>
>
>> -Original Message- From: Christopher Schultz
>> [mailto:ch...@christopherschultz.net] Sent: Monday, January 08,
>> 2018 8:16 PM To: users@tomcat.apache.org Subject: Re: Why will
>> Tomcat not accept EC cipher suites?
>>
>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA256
>>
>> John,
>>
>> On 1/8/18 6:28 PM, john.e.gr...@wellsfargo.com.INVALID wrote:
>>> Chris and Mark,
>>>> -Original Message- From: Christopher Schultz
>>>> [mailto:ch...@christopherschultz.net] Sent: Monday, January
>>>> 08, 2018 5:21 PM To: users@tomcat.apache.org Subject: Re: Why
>>>> will Tomcat not accept EC cipher suites?
>>>>
>>>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA256
>>>>
>>>> Mark,
>>>>
>>>> On 1/8/18 3:36 PM, Mark Thomas wrote:
>>>>> On 08/01/18 19:34, john.e.gr...@wellsfargo.com.INVALID
>>>>> wrote:
>>>>>> All,
>>>>>>
>>>>>> I'm using Tomcat 7.0.82 and java 1.8.0_152.
>>>>>>
>>>>>> I cannot get Tomcat to accept elliptic curve ciphers.
>>>>>> I've written a small SSL socket server that uses the same
>>>>>> certificate as the server and deployed it on the same
>>>>>> machine using the same JDK. It accepts EC ciphers just
>>>>>> fine so I don't think there is anything in the JDK that
>>>>>> has disabled them, etc. With verbose SSL enabled,
>>>>>> Tomcat, however, complains about "http-bio-7114-exec-4,
>>>>>> handling exception: javax.net.ssl.SSLHandshakeException:
>>>>>> no cipher suites in common."
>>>>>>
>>>>>> If I omit the "ciphers" property of the connector, I get
>>>>>> this:
>>>>>>
>>>>>> No available cipher suite for TLSv1 No available cipher
>>>>>> suite for TLSv1.1 No available cipher suite for TLSv1.2
>>>>>>
>>>>>> If I set ciphers="ALL," I'm back to "no cipher suites in
>>>>>> common."
>>>>>>
>>>>>> If I explicitly tell Tomcat to accept
>>>>>> TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, which works with
>>>>>> my
>>>> socket
>>>>>> server, I get "No appropriate protocol (protocol is
>>>>>> disabled or cipher suites are inappropriate)."
>>>>>>
>>>>>> BTW I have an RSA cert on the server with a 2048-bit key
>>>>>> and signed using SHA256withRSA.
>>>>>>
>>>>>> One of the connector configs I've tried.
>>>>>>
>>>>>> >>>>> SSLEnabled="true" maxThreads="400"
>>>>>> maxKeepAliveRequests="100" keepAliveTimeout="1"
>>>>>> scheme="https" secure="true" clientAuth="true"
>>>>>> sessionCacheSize="5" sslProtocol="TLS"
>>>>>> keystoreFile="/path/to/keystore"
>>>>>> keystorePass="${keystore.password}" keyAlias="test"
>>>>>> truststoreFile="/path/to/cacerts"
>>>>>> truststorePass="${truststore.password}"
>>>>>> allowUnsafeLegacyRenegotiation="false" />
>>>>>
>>>>> Try getting it to work without client authentication to
>>>>> start with.
>>>>
>>>> +1
>>>>
>>>>> I don't see anything that jumps out as wrong in the above.
>>>>
>>>> Also, John, what client are you using to test?
>>>>
>>>> - -chris
>>>
>>> At Mark's suggestion, I disabled client auth, but it didn't
>>> make any difference. The handshake fails before it even gets
>>> to that step.
>>>
>>> I'm using several different clients, including HP Performance
>>> Center, openssl, and a couple of java clients that I wrote
>>> myself (one uses SSLSocket directly and one uses
>>> HttpsUrlConnection.)
>>>
>>> Currently I'm looking at the JDK's ServerHandshaker class to
>>> make sure I understand the log messages.
>>
>> Are you doin
RE: Why will Tomcat not accept EC cipher suites?
Chris,
> -Original Message-
> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Sent: Monday, January 08, 2018 8:16 PM
> To: users@tomcat.apache.org
> Subject: Re: Why will Tomcat not accept EC cipher suites?
>
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> John,
>
> On 1/8/18 6:28 PM, john.e.gr...@wellsfargo.com.INVALID wrote:
> > Chris and Mark,
> >> -Original Message- From: Christopher Schultz
> >> [mailto:ch...@christopherschultz.net] Sent: Monday, January 08,
> >> 2018 5:21 PM To: users@tomcat.apache.org Subject: Re: Why will Tomcat
> >> not accept EC cipher suites?
> >>
> >> -BEGIN PGP SIGNED MESSAGE- Hash: SHA256
> >>
> >> Mark,
> >>
> >> On 1/8/18 3:36 PM, Mark Thomas wrote:
> >>> On 08/01/18 19:34, john.e.gr...@wellsfargo.com.INVALID wrote:
> >>>> All,
> >>>>
> >>>> I'm using Tomcat 7.0.82 and java 1.8.0_152.
> >>>>
> >>>> I cannot get Tomcat to accept elliptic curve ciphers. I've written
> >>>> a small SSL socket server that uses the same certificate as the
> >>>> server and deployed it on the same machine using the same JDK. It
> >>>> accepts EC ciphers just fine so I don't think there is anything in
> >>>> the JDK that has disabled them, etc. With verbose SSL enabled,
> >>>> Tomcat, however, complains about "http-bio-7114-exec-4, handling
> >>>> exception:
> >>>> javax.net.ssl.SSLHandshakeException: no cipher suites in common."
> >>>>
> >>>> If I omit the "ciphers" property of the connector, I get
> >>>> this:
> >>>>
> >>>> No available cipher suite for TLSv1 No available cipher suite for
> >>>> TLSv1.1 No available cipher suite for TLSv1.2
> >>>>
> >>>> If I set ciphers="ALL," I'm back to "no cipher suites in common."
> >>>>
> >>>> If I explicitly tell Tomcat to accept
> >>>> TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, which works with my
> >> socket
> >>>> server, I get "No appropriate protocol (protocol is disabled or
> >>>> cipher suites are inappropriate)."
> >>>>
> >>>> BTW I have an RSA cert on the server with a 2048-bit key and signed
> >>>> using SHA256withRSA.
> >>>>
> >>>> One of the connector configs I've tried.
> >>>>
> >>>> >>>> maxThreads="400" maxKeepAliveRequests="100"
> >>>> keepAliveTimeout="1" scheme="https" secure="true"
> >>>> clientAuth="true" sessionCacheSize="5" sslProtocol="TLS"
> >>>> keystoreFile="/path/to/keystore"
> >>>> keystorePass="${keystore.password}" keyAlias="test"
> >>>> truststoreFile="/path/to/cacerts"
> >>>> truststorePass="${truststore.password}"
> >>>> allowUnsafeLegacyRenegotiation="false" />
> >>>
> >>> Try getting it to work without client authentication to start with.
> >>
> >> +1
> >>
> >>> I don't see anything that jumps out as wrong in the above.
> >>
> >> Also, John, what client are you using to test?
> >>
> >> - -chris
> >
> > At Mark's suggestion, I disabled client auth, but it didn't make any
> > difference. The handshake fails before it even gets to that step.
> >
> > I'm using several different clients, including HP Performance Center,
> > openssl, and a couple of java clients that I wrote myself (one uses
> > SSLSocket directly and one uses HttpsUrlConnection.)
> >
> > Currently I'm looking at the JDK's ServerHandshaker class to make sure
> > I understand the log messages.
>
> Are you doing something mundane such as:
>
> $ openssl s_client -connect example.com:8443 ?
>
> I would expect that to be able to negotiate a TLS connection with a pretty
> standard Tomcat with TLS enabled (and nothing in particular specified for
> ciphers, protocols, etc.).
>
> - -chris
It turns out that we have elliptic curve ciphers explicitly disabled with the
system property -Dcom.sun.net.ssl.enableECC=false. I know the OWASP cheat
sheet says to favor DHE over ECDHE but I'll have to ask around to find out if
that's the reason.
Thanks
Re: Why will Tomcat not accept EC cipher suites?
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Hash: SHA256
John,
On 1/8/18 6:28 PM, john.e.gr...@wellsfargo.com.INVALID wrote:
> Chris and Mark,
>> -Original Message- From: Christopher Schultz
>> [mailto:ch...@christopherschultz.net] Sent: Monday, January 08,
>> 2018 5:21 PM To: users@tomcat.apache.org Subject: Re: Why will
>> Tomcat not accept EC cipher suites?
>>
>> -BEGIN PGP SIGNED MESSAGE- Hash: SHA256
>>
>> Mark,
>>
>> On 1/8/18 3:36 PM, Mark Thomas wrote:
>>> On 08/01/18 19:34, john.e.gr...@wellsfargo.com.INVALID wrote:
>>>> All,
>>>>
>>>> I'm using Tomcat 7.0.82 and java 1.8.0_152.
>>>>
>>>> I cannot get Tomcat to accept elliptic curve ciphers. I've
>>>> written a small SSL socket server that uses the same
>>>> certificate as the server and deployed it on the same machine
>>>> using the same JDK. It accepts EC ciphers just fine so I
>>>> don't think there is anything in the JDK that has disabled
>>>> them, etc. With verbose SSL enabled, Tomcat, however,
>>>> complains about "http-bio-7114-exec-4, handling exception:
>>>> javax.net.ssl.SSLHandshakeException: no cipher suites in
>>>> common."
>>>>
>>>> If I omit the "ciphers" property of the connector, I get
>>>> this:
>>>>
>>>> No available cipher suite for TLSv1 No available cipher suite
>>>> for TLSv1.1 No available cipher suite for TLSv1.2
>>>>
>>>> If I set ciphers="ALL," I'm back to "no cipher suites in
>>>> common."
>>>>
>>>> If I explicitly tell Tomcat to accept
>>>> TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, which works with my
>> socket
>>>> server, I get "No appropriate protocol (protocol is disabled
>>>> or cipher suites are inappropriate)."
>>>>
>>>> BTW I have an RSA cert on the server with a 2048-bit key and
>>>> signed using SHA256withRSA.
>>>>
>>>> One of the connector configs I've tried.
>>>>
>>>> >>> maxThreads="400" maxKeepAliveRequests="100"
>>>> keepAliveTimeout="1" scheme="https" secure="true"
>>>> clientAuth="true" sessionCacheSize="5" sslProtocol="TLS"
>>>> keystoreFile="/path/to/keystore"
>>>> keystorePass="${keystore.password}" keyAlias="test"
>>>> truststoreFile="/path/to/cacerts"
>>>> truststorePass="${truststore.password}"
>>>> allowUnsafeLegacyRenegotiation="false" />
>>>
>>> Try getting it to work without client authentication to start
>>> with.
>>
>> +1
>>
>>> I don't see anything that jumps out as wrong in the above.
>>
>> Also, John, what client are you using to test?
>>
>> - -chris
>
> At Mark's suggestion, I disabled client auth, but it didn't make
> any difference. The handshake fails before it even gets to that
> step.
>
> I'm using several different clients, including HP Performance
> Center, openssl, and a couple of java clients that I wrote myself
> (one uses SSLSocket directly and one uses HttpsUrlConnection.)
>
> Currently I'm looking at the JDK's ServerHandshaker class to make
> sure I understand the log messages.
Are you doing something mundane such as:
$ openssl s_client -connect example.com:8443 ?
I would expect that to be able to negotiate a TLS connection with a
pretty standard Tomcat with TLS enabled (and nothing in particular
specified for ciphers, protocols, etc.).
- -chris
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RE: Why will Tomcat not accept EC cipher suites?
Chris and Mark,
> -Original Message-
> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Sent: Monday, January 08, 2018 5:21 PM
> To: users@tomcat.apache.org
> Subject: Re: Why will Tomcat not accept EC cipher suites?
>
> -BEGIN PGP SIGNED MESSAGE-
> Hash: SHA256
>
> Mark,
>
> On 1/8/18 3:36 PM, Mark Thomas wrote:
> > On 08/01/18 19:34, john.e.gr...@wellsfargo.com.INVALID wrote:
> >> All,
> >>
> >> I'm using Tomcat 7.0.82 and java 1.8.0_152.
> >>
> >> I cannot get Tomcat to accept elliptic curve ciphers. I've written a
> >> small SSL socket server that uses the same certificate as the server
> >> and deployed it on the same machine using the same JDK. It accepts
> >> EC ciphers just fine so I don't think there is anything in the JDK
> >> that has disabled them, etc. With verbose SSL enabled, Tomcat,
> >> however, complains about "http-bio-7114-exec-4, handling exception:
> >> javax.net.ssl.SSLHandshakeException: no cipher suites in common."
> >>
> >> If I omit the "ciphers" property of the connector, I get this:
> >>
> >> No available cipher suite for TLSv1 No available cipher suite for
> >> TLSv1.1 No available cipher suite for TLSv1.2
> >>
> >> If I set ciphers="ALL," I'm back to "no cipher suites in common."
> >>
> >> If I explicitly tell Tomcat to accept
> >> TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, which works with my
> socket
> >> server, I get "No appropriate protocol (protocol is disabled or
> >> cipher suites are inappropriate)."
> >>
> >> BTW I have an RSA cert on the server with a 2048-bit key and signed
> >> using SHA256withRSA.
> >>
> >> One of the connector configs I've tried.
> >>
> >> >> maxThreads="400" maxKeepAliveRequests="100"
> >> keepAliveTimeout="1" scheme="https" secure="true"
> >> clientAuth="true" sessionCacheSize="5" sslProtocol="TLS"
> >> keystoreFile="/path/to/keystore"
> >> keystorePass="${keystore.password}" keyAlias="test"
> >> truststoreFile="/path/to/cacerts"
> >> truststorePass="${truststore.password}"
> >> allowUnsafeLegacyRenegotiation="false" />
> >
> > Try getting it to work without client authentication to start with.
>
> +1
>
> > I don't see anything that jumps out as wrong in the above.
>
> Also, John, what client are you using to test?
>
> - -chris
At Mark's suggestion, I disabled client auth, but it didn't make any
difference. The handshake fails before it even gets to that step.
I'm using several different clients, including HP Performance Center, openssl,
and a couple of java clients that I wrote myself (one uses SSLSocket directly
and one uses HttpsUrlConnection.)
Currently I'm looking at the JDK's ServerHandshaker class to make sure I
understand the log messages.
Thanks
Re: Why will Tomcat not accept EC cipher suites?
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Mark,
On 1/8/18 3:36 PM, Mark Thomas wrote:
> On 08/01/18 19:34, john.e.gr...@wellsfargo.com.INVALID wrote:
>> All,
>>
>> I'm using Tomcat 7.0.82 and java 1.8.0_152.
>>
>> I cannot get Tomcat to accept elliptic curve ciphers. I've
>> written a small SSL socket server that uses the same certificate
>> as the server and deployed it on the same machine using the same
>> JDK. It accepts EC ciphers just fine so I don't think there is
>> anything in the JDK that has disabled them, etc. With verbose
>> SSL enabled, Tomcat, however, complains about
>> "http-bio-7114-exec-4, handling exception:
>> javax.net.ssl.SSLHandshakeException: no cipher suites in
>> common."
>>
>> If I omit the "ciphers" property of the connector, I get this:
>>
>> No available cipher suite for TLSv1 No available cipher suite for
>> TLSv1.1 No available cipher suite for TLSv1.2
>>
>> If I set ciphers="ALL," I'm back to "no cipher suites in
>> common."
>>
>> If I explicitly tell Tomcat to accept
>> TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, which works with my socket
>> server, I get "No appropriate protocol (protocol is disabled or
>> cipher suites are inappropriate)."
>>
>> BTW I have an RSA cert on the server with a 2048-bit key and
>> signed using SHA256withRSA.
>>
>> One of the connector configs I've tried.
>>
>> > maxThreads="400" maxKeepAliveRequests="100"
>> keepAliveTimeout="1" scheme="https" secure="true"
>> clientAuth="true" sessionCacheSize="5" sslProtocol="TLS"
>> keystoreFile="/path/to/keystore"
>> keystorePass="${keystore.password}" keyAlias="test"
>> truststoreFile="/path/to/cacerts"
>> truststorePass="${truststore.password}"
>> allowUnsafeLegacyRenegotiation="false" />
>
> Try getting it to work without client authentication to start
> with.
+1
> I don't see anything that jumps out as wrong in the above.
Also, John, what client are you using to test?
- -chris
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Re: Why will Tomcat not accept EC cipher suites?
On 08/01/18 19:34, john.e.gr...@wellsfargo.com.INVALID wrote:
> All,
>
> I'm using Tomcat 7.0.82 and java 1.8.0_152.
>
> I cannot get Tomcat to accept elliptic curve ciphers. I've written a small
> SSL socket server that uses the same certificate as the server and deployed
> it on the same machine using the same JDK. It accepts EC ciphers just fine
> so I don't think there is anything in the JDK that has disabled them, etc.
> With verbose SSL enabled, Tomcat, however, complains about
> "http-bio-7114-exec-4, handling exception:
> javax.net.ssl.SSLHandshakeException: no cipher suites in common."
>
> If I omit the "ciphers" property of the connector, I get this:
>
> No available cipher suite for TLSv1
> No available cipher suite for TLSv1.1
> No available cipher suite for TLSv1.2
>
> If I set ciphers="ALL," I'm back to "no cipher suites in common."
>
> If I explicitly tell Tomcat to accept TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256,
> which works with my socket server, I get "No appropriate protocol (protocol
> is disabled or cipher suites are inappropriate)."
>
> BTW I have an RSA cert on the server with a 2048-bit key and signed using
> SHA256withRSA.
>
> One of the connector configs I've tried.
>
> protocol="HTTP/1.1"
> SSLEnabled="true"
> maxThreads="400"
> maxKeepAliveRequests="100"
> keepAliveTimeout="1"
> scheme="https"
> secure="true"
> clientAuth="true"
> sessionCacheSize="5"
> sslProtocol="TLS"
> keystoreFile="/path/to/keystore"
> keystorePass="${keystore.password}"
> keyAlias="test"
> truststoreFile="/path/to/cacerts"
> truststorePass="${truststore.password}"
> allowUnsafeLegacyRenegotiation="false"
> />
Try getting it to work without client authentication to start with.
I don't see anything that jumps out as wrong in the above.
Mark
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RE: Why will Tomcat not accept EC cipher suites?
Hello John, Technically, Java 1.8 provides the ciphers which are used by Tomcat and it definitely supports a lot of EC ciphers: https://docs.oracle.com/javase/8/docs/technotes/guides/security/StandardNames.html#ciphersuites Do you get the HandShakeException when you access the Tomcat directly or using webserver? Also, I use a small script to get the list of supported ciphers for each Protocol, as below: -- #!/bin/sh for v in tls1; do #you can use tls1_1 or tls1_2 in place of tls1, which is the protocol) for c in $(openssl ciphers 'ALL:eNULL' | tr ':' ' '); do openssl s_client -connect TOMCAT-SEREVE:HTTPS-Port \ -cipher $c -$v < /dev/null > /dev/null 2>&1 && echo -e "$v:\t$c" done done - Thank you, Vamsi Gali -Original Message- From: john.e.gr...@wellsfargo.com.INVALID [mailto:john.e.gr...@wellsfargo.com.INVALID] Sent: Monday, January 08, 2018 2:35 PM To: users@tomcat.apache.org Subject: Why will Tomcat not accept EC cipher suites? All, I'm using Tomcat 7.0.82 and java 1.8.0_152. I cannot get Tomcat to accept elliptic curve ciphers. I've written a small SSL socket server that uses the same certificate as the server and deployed it on the same machine using the same JDK. It accepts EC ciphers just fine so I don't think there is anything in the JDK that has disabled them, etc. With verbose SSL enabled, Tomcat, however, complains about "http-bio-7114-exec-4, handling exception: javax.net.ssl.SSLHandshakeException: no cipher suites in common." If I omit the "ciphers" property of the connector, I get this: No available cipher suite for TLSv1 No available cipher suite for TLSv1.1 No available cipher suite for TLSv1.2 If I set ciphers="ALL," I'm back to "no cipher suites in common." If I explicitly tell Tomcat to accept TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256, which works with my socket server, I get "No appropriate protocol (protocol is disabled or cipher suites are inappropriate)." BTW I have an RSA cert on the server with a 2048-bit key and signed using SHA256withRSA. One of the connector configs I've tried. Thanks John This communication may contain privileged and/or confidential information. It is intended solely for the use of the addressee. If you are not the intended recipient, you are strictly prohibited from disclosing, copying, distributing or using any of this information. If you received this communication in error, please contact the sender immediately and destroy the material in its entirety, whether electronic or hard copy. This communication may contain nonpublic personal information about consumers subject to the restrictions of the Gramm-Leach-Bliley Act. You may not directly or indirectly reuse or redisclose such information for any purpose other than to provide the services for which you are receiving the information. 127 Public Square, Cleveland, OH 44114 If you prefer not to receive future e-mail offers for products or services from Key send an e-mail to mailto:dnereque...@key.com with 'No Promotional E-mails' in the SUBJECT line. - To unsubscribe, e-mail: users-unsubscr...@tomcat.apache.org For additional commands, e-mail: users-h...@tomcat.apache.org
