SPNEGO in IdP 3.2

[Dave Perry]

Do you mean java version? If so, which ones have you found it to not work with (or work with, if you've since had luck)?
I was planning on trying this at some point.

Dave

_________________________________________________
Dave Perry
eLearning Technologist, Hull College Group

Room L34 - Queens Gardens Library
Wilberforce Drive, Queen's Gardens, Hull, HU1 3DG
Extension 2230 / Direct Dial 01482 381930

* Need a fast reply? Try elearning at hull-college.ac.uk<mailto:elearning at hull-college.ac.uk> *

From: users [mailto:users-bounces at shibboleth.net] On Behalf Of Chris Franks
Sent: 20 November 2015 09:41
To: Shib Users
Subject: RE: SPNEGO in IdP 3.2

Sorry about this, after trying Java7, it looks like it's a versioning problem:

2015-11-20 09:36:26,997 - DEBUG [net.shibboleth.idp.authn.spnego.impl.GSSContextAcceptor:175] - Validating the first GSS input token against service principal: HTTP/gateway.ncl.ac.uk at CAMPUS.NCL.AC.UK<mailto:HTTP/gateway.ncl.ac.uk at CAMPUS.NCL.AC.UK>
2015-11-20 09:36:27,072 - DEBUG [net.shibboleth.idp.authn.spnego.impl.GSSContextAcceptor:188] - Error establishing security context
org.ietf.jgss.GSSException: Failure unspecified at GSS-API level (Mechanism level: Specified version of key is not available (44))
        at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:788)
Caused by: sun.security.krb5.KrbException: Specified version of key is not available (44)
        at sun.security.krb5.EncryptionKey.findKey(EncryptionKey.java:588)
2015-11-20 09:36:27,079 - DEBUG [net.shibboleth.idp.authn.spnego.impl.SPNEGOAuthnController:165] - Exception processing GSS token
org.ietf.jgss.GSSException: Failure unspecified at GSS-API level (Mechanism level: Specified version of key is not available (44))
        at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:788)
Caused by: sun.security.krb5.KrbException: Specified version of key is not available (44)
        at sun.security.krb5.EncryptionKey.findKey(EncryptionKey.java:588)
2015-11-20 09:36:27,146 - WARN [net.shibboleth.idp.authn.impl.ValidateExternalAuthentication:94] - Profile Action ValidateExternalAuthentication: External authentication produced exception
net.shibboleth.idp.authn.ExternalAuthenticationException: SPNEGONotAvailable
        at net.shibboleth.idp.authn.spnego.impl.SPNEGOAuthnController.continueSPNEGO(SPNEGOAuthnController.java:167)
Caused by: org.ietf.jgss.GSSException: Failure unspecified at GSS-API level (Mechanism level: Specified version of key is not available (44))
        at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:788)
Caused by: sun.security.krb5.KrbException: Specified version of key is not available (44)
        at sun.security.krb5.EncryptionKey.findKey(EncryptionKey.java:588)
2015-11-20 09:36:27,150 - INFO [net.shibboleth.idp.authn.impl.SelectAuthenticationFlow:130] - Profile Action SelectAuthenticationFlow: Moving incomplete flow authn/SPNEGO to intermediate set

From: users [mailto:users-bounces at shibboleth.net] On Behalf Of Chris Franks
Sent: 20 November 2015 09:25
To: users at shibboleth.net<mailto:users at shibboleth.net>
Subject: SPNEGO in IdP 3.2

Hi,

I've just setup a test IdP installation to see how we can replicate our current SPNEGO setup in IdP 3.2 (Centos 6.7/apache-tomcat-8.0.26).

I'm getting a checksum error in the IdP logs:

2015-11-20 09:12:10,557 - DEBUG [net.shibboleth.idp.authn.spnego.impl.GSSContextAcceptor:175] - Validating the first GSS input token against service principal: HTTP/gateway.ncl.ac.uk at CAMPUS.NCL.AC.UK<mailto:HTTP/gateway.ncl.ac.uk at CAMPUS.NCL.AC.UK>
2015-11-20 09:12:10,567 - DEBUG [net.shibboleth.idp.authn.spnego.impl.GSSContextAcceptor:188] - Error establishing security context
org.ietf.jgss.GSSException: Failure unspecified at GSS-API level (Mechanism level: Checksum failed)
        at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:856)
Caused by: sun.security.krb5.KrbCryptoException: Checksum failed
        at sun.security.krb5.internal.crypto.ArcFourHmacEType.decrypt(ArcFourHmacEType.java:102)
Caused by: java.security.GeneralSecurityException: Checksum failed
        at sun.security.krb5.internal.crypto.dk.ArcFourCrypto.decrypt(ArcFourCrypto.java:408)
2015-11-20 09:12:10,572 - DEBUG [net.shibboleth.idp.authn.spnego.impl.SPNEGOAuthnController:165] - Exception processing GSS token
org.ietf.jgss.GSSException: Failure unspecified at GSS-API level (Mechanism level: Checksum failed)
        at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:856)
Caused by: sun.security.krb5.KrbCryptoException: Checksum failed
        at sun.security.krb5.internal.crypto.ArcFourHmacEType.decrypt(ArcFourHmacEType.java:102)
Caused by: java.security.GeneralSecurityException: Checksum failed
        at sun.security.krb5.internal.crypto.dk.ArcFourCrypto.decrypt(ArcFourCrypto.java:408)
2015-11-20 09:12:10,595 - WARN [net.shibboleth.idp.authn.impl.ValidateExternalAuthentication:94] - Profile Action ValidateExternalAuthentication: External authentication produced exception
net.shibboleth.idp.authn.ExternalAuthenticationException: SPNEGONotAvailable
        at net.shibboleth.idp.authn.spnego.impl.SPNEGOAuthnController.continueSPNEGO(SPNEGOAuthnController.java:167)
Caused by: org.ietf.jgss.GSSException: Failure unspecified at GSS-API level (Mechanism level: Checksum failed)
        at sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:856)
Caused by: sun.security.krb5.KrbCryptoException: Checksum failed
        at sun.security.krb5.internal.crypto.ArcFourHmacEType.decrypt(ArcFourHmacEType.java:102)
Caused by: java.security.GeneralSecurityException: Checksum failed
        at sun.security.krb5.internal.crypto.dk.ArcFourCrypto.decrypt(ArcFourCrypto.java:408)
2015-11-20 09:12:10,596 - INFO [net.shibboleth.idp.authn.impl.SelectAuthenticationFlow:130] - Profile Action SelectAuthenticationFlow: Moving incomplete flow authn/SPNEGO to intermediate set

But the keytab itself works fine on the command line:

[root at devidp authn]# kinit ncf17
Password for ncf17 at CAMPUS.NCL.AC.UK<mailto:ncf17 at CAMPUS.NCL.AC.UK>:
[root at devidp authn]# klist
Ticket cache: FILE:/tmp/krb5cc_0
Default principal: ncf17 at CAMPUS.NCL.AC.UK<mailto:ncf17 at CAMPUS.NCL.AC.UK>

Valid starting     Expires            Service principal
11/20/15 09:10:32  11/20/15 17:10:32  krbtgt/CAMPUS.NCL.AC.UK at CAMPUS.NCL.AC.UK<mailto:krbtgt/CAMPUS.NCL.AC.UK at CAMPUS.NCL.AC.UK>

Our krb5.conf has:

default_tgt_enctypes = arcfour-hmac
default_tgs_enctypes= arcfour-hmac

so it looks like the right decryption method is being used... could this be to do with the Java version (1.8.0_65)?

I remember keytabs/encryption types being a pain the last time we set this up but it's been a while so any pointers would be greatly received :)

Thanks,

Chris


**********************************************************************
This message is sent in confidence for the addressee
only. It may  contain confidential or sensitive
information.  The contents are not to be disclosed
to anyone other than the addressee.  Unauthorised
recipients are requested to preserve this
confidentiality and to advise us of any errors in
transmission.  Any views expressed in this message
are solely the views of the individual and do not
represent the views of the College.  Nothing in this
message should be construed as creating a contract.

Hull College Group owns the email infrastructure, including the contents.

Hull College Group is committed to sustainability, please reflect before printing this email.
**********************************************************************

TEXT
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://shibboleth.net/pipermail/users/attachments/20151120/6d09c15f/attachment-0001.html>