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Re: [[cat-users]] TLS Failures from Android


Chronological Thread 
  • From: Stefan Winter <stefan.winter AT restena.lu>
  • To: "Downton, Sam" <samuel.downton AT metoffice.gov.uk>, "cat-users AT lists.geant.org" <cat-users AT lists.geant.org>
  • Subject: Re: [[cat-users]] TLS Failures from Android
  • Date: Mon, 14 Jan 2019 14:49:10 +0100
  • Autocrypt: addr=stefan.winter AT restena.lu; prefer-encrypt=mutual; keydata= mQINBFIplEwBEADTSz+DS8nio+RSvfSLLfaOnCGi1nqpn8Pb1laVUyEvnAAzZ5jemiS88Gxf iDH6hUGlWzcaW0hCfUHGiohr485adbjxRksPngWgAt/1bRxpifsW3zObFjgog01WWQV5Sihl wc4zr8zvYbFA5BJZ6YdkR9C5J015riv5OS30WTjA65SSXgYrb7zJWPwmegTFwE093uBFvC39 waz3xYpVu5j87nO6w2MVQt/8sY2/2BFPEq+xfOajl18UEwc7w8SCgnZdlVNcmEK4UBvJuwS/ 1lsR2JeQa8Gu1EDxC7PRgMgNXsDSWnnBe9aVmfG54+6ILe1QH2dwk9sPBQT5w2+vjijrb3Dv 9ur+1kN+TNU2XE436jVpnnY/3OsLdix30STQn4Q/XOm7YoVMeDwwviefilRxzK0dXA+wKj92 T68Od82CFxuZqPAgBCVmWfQM91iK9piqFK+QP+R3vF6+NGDBdwbe68iVKs0v5L8XmbxBQndj pmo+lo2asmBR2TAIfZHaKdgtBw13u3GPVVKlg/Mpko8ki9JOSem2aFyi3kQEVKptWgXT3POl 97DWJzsR5VyKz6GOx9kJAEISRyLZwm0wqh8+9LCza5oeIKW381lzq1b9x30vOh8CBSQQJ+cG 9ko0yPHAj7Suw2TmPXx1qMctmE6Ahq82ZW30SljdZby8WQuR2wARAQABtDxTdGVmYW4gV2lu dGVyIChSRVNURU5BIGtleSAyMDEzKykgPHN0ZWZhbi53aW50ZXJAcmVzdGVuYS5sdT6JAjkE EwECACMFAlIplEwCGwMHCwkIBwMCAQYVCAIJCgsEFgIDAQIeAQIXgAAKCRDA3mo1ijncZj7/ D/99hVS+mJr8dSPCaDaUFFxBiT2eI1LoR8VKEerTCRw5BsdL6pN2eRJZ9NmsqWo1ynWVHEzO 91bNZ+oZGgyoNohcBAI7p+r0qUTzkyqwdZO4kMm0pqKoM9xkP3tf2mjGujKjOz4Y7S7wnz2Z FokeUsecoRVJF/++/qHnmeWLn44J1HUKLHYCjMu+QXGOgGXgz024jQ5eUrnPwzNp0Z90AFVH lWC+bymty/ToIUUCQqS5Ff0jzdWLd8U695OG9iGvjBQT1LdEjsfbAwuKV5UcnpxNqUpUwKa5 9hdX5/2cMZP07FI1UXwnBlxa8rJfdb13FLjSKX4vUUHedYUZMjMPgcwl1a+zGE22lHiSQWgP 8QLA/W3BLsi22ERCEPZBfexOeOtaWIItDIz18fIaQoMDoRPshzar0JI2CzLYsyeKySAtYJEH FVoLmMvhkwzBmgqA/BEswUA67CfCr1jFHRXdpmWM7YkyAmMa9q6LwquWKS5+MXlUXe/3oZUc gpw/T9Uuy3Jo3RdS7B3jFcWaVr6KsO/A9u1gr/aYn5M+iJTQSj4vzqtkQaJTpSspRZoKa66H Zt3IwSYiDiYZqtM83ynuj9kjnZzGfnuTaNIi996q6Mptr33mOzIE1wmMqnJYwTr3EcNtf483 q/qrJwh5ES8Q9xY7aat/ZcSl8fKubW4TlfVr8bkCDQRSKZRMARAAvBPpn7FQq7LQ5glohtbL 6XIEo1U4X67S0TzUYieENSWSVYuWYIhCBldmWdmH8Bpj/qHeqdon7v+SLtR4WngzMR9toupK cFfHnbP9kpazTSB2ySHxXWGX1gJOpPXdCcg9iveKBHEsDn00ThTcPsvtXpnnzET16pXIvOXO 0bxTmVZ4INIF1SWgvYma/g8kBbgXLpkj8tOywBqFiiYPEZlDeCxDHiMgUDh6olda9K/0TZFT dMPUgjKuubfAeaDNCOrVt4RjmFOaRLikcZocmgJhm3z/j25x7/mnNu+0di1H/S67YGQJ+pqC FInzIXDx7aRW2+JCiqsY2X3xOPWZZzjyis5SNnfOcPH3gt2hYz1fy+thsBGf4NgCN01JRqIJ 2/MOQCgUdwh+9l8xqaJvCkUHM4hVh4W62MAe1u7UEqQbvvNEqxM5034vcvlE+/LRkrDCspw+ 2YJ9QyroLerVRwW5DVleP8Ifi8VB3yD80nqXYs9aqRy0BkDNIQ43ERhESMt8dJqrNkxgC6pe mZrhNwyDh+hy2kPNGQh/iBpdKuH1o3E24TIZoV2v3YHvzob7aAYHddE/PofAXhJW7I9mAs+H dWDmnI8ckuPDFpFH+Y/BFGvEXgcnJAJ1wEvf+4LuiIi0MHjR4EWFn9vvoFDAIqD10h3FSd3D 59HGtdSsNn4XaCsAEQEAAYkCHwQYAQIACQUCUimUTAIbDAAKCRDA3mo1ijncZhBtEACL036d djc5pFoYIdoUY1vT8SMXJNquewCnL1quDADzqDZFU5GNlQEy10krSfBwlTb9ahTtE0JFrOdZ wUZtoa1Pgfr8nU6KOgrXPHbNjS/9dyc5CwGVVIpOavIm2CsMVDJ9LCF/NT+u/t1k6eGfHhPV l3dUQyDa/lzc1chKUIVQYQkFmr0A/iXP+29lFCaI+IeyU0bSdZhezDwUROn5vEx+fiPZyHDS hCb+BxJv/o2LQp9JHenCiSbO+ioRZdxgbWfoKBuXOfmSStqMWXas/gZ5vS3xq72LNtKPRxgp jX3P8Zml1XDqpcBau7eK75VKE0Yd06YxnUIsbcEzInUc3uzW/u0DFpXYkMJb0XIvJyUt5yYP KfV13N8kSkPi5pLxm8yuftXMzfgeFMR7nafY3glTVj/TxElzg6xeZNqfC2ZjIbBtZg9ylHU8 u8wwB+dX282crs0R3N9A064C71/cXlBqcjzjlKH2NUIWGxr+od3TXFIFjszSU3NgMPKrWNhF LLwS81MpbkOe73s6aDhS8RDyNucoxtKXriLR+4Xiu4+pyj5ukYP1JqpB3ZobY/XZgCnJMye+ 7xeTpIDJ1LPORxM3NNAElyb26lxAK2P+km+EpI0Zzz6rNSCfg5jYQ474+e/GBgaSG4MlaPoZ +XAfN46u1Xjjv1/AkkA4IA6m5zP5og==
  • Openpgp: id=AD3091F3AB24E05F4F722C03C0DE6A358A39DC66; url=http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xC0DE6A358A39DC66

Hi,

> Our Radius Server does send the whole chain during the EAP exchange, and I
> can use the root cert installed by CAT to verify the servers identity when
> manually entering the configuration, the problem seems to be specific to
> the combination of settings applied by CAT.

Okay... the thing is, we don't do anything special. It's an API call to
Android's built-in WifiEnterprise API, everything from then on is just
normal Android supplicant behaviour.

> As mentioned by Alan, our firewall will only allow a direct RADIUS
> connection from the UK proxies. I have rasied a call with JISC asking why
> we are seeing errors in their portal while running the connectivity tests
> from the CAT website.

I take that for granted. It is not even possible at all to contact you
directly because I do not have a shared secret on your server, and you
do not have a RADIUS/TLS certificate for direct peering.

My test /originated/ from our NRO server, but was injected into normal
eduroam routing. So it first went to the European top-level servers, who
proxied to the UK ones, who sent it onwards to you. This traverses the
firewalls just fine.

And then, there was no reply.

Good that you mention that the UK support servers also see errors. This
means I'm not dreaming anything up and there are others who see that
something in your realm's request routing is wrong, too. (The CAT tests
inject their tests on the European top-level servers and thus take by
and large the same way to you as my LU tests do)

The UK servers are of course closer to you than any test I can run. I
suggest once you've cleared the error cause on the national level, we
can regroup and try testing from CAT again.

> Thanks for the info about ChromeOS. This will be something to consider when
> we next renew our certificate.

You're welcome.

Stefan


--
Stefan WINTER
Ingenieur de Recherche
Fondation RESTENA - Réseau Téléinformatique de l'Education Nationale et
de la Recherche
2, avenue de l'Université
L-4365 Esch-sur-Alzette

Tel: +352 424409 1
Fax: +352 422473

PGP key updated to 4096 Bit RSA - I will encrypt all mails if the
recipient's key is known to me

http://pgp.mit.edu:11371/pks/lookup?op=get&search=0xC0DE6A358A39DC66

Attachment: 0xC0DE6A358A39DC66.asc
Description: application/pgp-keys

Attachment: signature.asc
Description: OpenPGP digital signature




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