[Samba] Samba 3.0.2a with ADS w2k3 Active Directory, enctypes

Mon Apr 19 11:59:26 GMT 2004

Hi people,

I have a Linux box running Samba 3.0.2a in ADS mode MIT Kerberos 1.3.3. My
W2K e WXP users can't access the linux box by netbios name, the only access
that works is by IP address, I know that's caused because access thought IP
address don't make use of Kerberos. The most strange for me it's that the
same environment works fine with a W2K Active Directory, I read in same list
the problem was the kerberos 1.2.x, then I changed to 1.3.3, but the problem
remains.
I also have tried the following combinations of parameters in the krb5.conf

Test 1 - No permitted_enctypes

[libdefaults]
	default_realm = HOME.EHC
# The following krb5.conf variables are only for MIT Kerberos.
	default_tgs_enctypes = des-cbc-crc des-cbc-md5
	default_tkt_enctypes = des-cbc-crc des-cbc-md5
	#permitted_enctypes = des-cbc-crc des-cbc-md5

Result

[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [18] failed to decrypt with error Bad
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [17] failed to decrypt with error Bad
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad
encryption type
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [1] failed to decrypt with error Bad
encryption type
[2004/04/18 10:38:34, 3] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [3] failed to decrypt with error Decrypt
integrity check failed
[2004/04/18 10:38:34, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [2] failed to decrypt with error Bad
encryption type
[2004/04/18 10:38:34, 10] passdb/secrets.c:secrets_named_mutex_release(710)
  secrets_named_mutex: released mutex for replay cache mutex
[2004/04/18 10:38:34, 3] libads/kerberos_verify.c:ads_verify_ticket(330)
  ads_verify_ticket: krb5_rd_req with auth failed (Bad encryption type)
[2004/04/18 10:38:34, 1] smbd/sesssetup.c:reply_spnego_kerberos(173)
  Failed to verify incoming ticket!

Test 2 - all enctypes that I know

[libdefaults]
	default_realm = HOME.EHC
# The following krb5.conf variables are only for MIT Kerberos.
	default_tgs_enctypes = des-cbc-crc des-cbc-md5
	default_tkt_enctypes = des-cbc-crc des-cbc-md5
	permitted_enctypes = aes256-cts-hmac-sha1-96 aes128-cts-hmac-sha1-96
arcfour-hmac arcfour-hmac-exp arcfour-hmac-md5 des des-cbc-crc des-cbc-md4
des-cbc-md5 des-cbc-raw des-cbc-rawv des-hmac-sha1 des3-cbc-raw
des3-cbc-sha1 des3-cbc-sha1-kd des3-hmac-sha1 rc4-hmac

Result

2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [18] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [17] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [24] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 3] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [3] failed to decrypt with error Decrypt
integrity check failed
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [1] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [2] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 3] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [3] failed to decrypt with error Decrypt
integrity check failed
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [4] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [8] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [6] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [16] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] libads/kerberos_verify.c:ads_verify_ticket(323)
  ads_verify_ticket: enc type [23] failed to decrypt with error Bad
encryption type
[2004/04/18 10:40:10, 10] passdb/secrets.c:secrets_named_mutex_release(710)
  secrets_named_mutex: released mutex for replay cache mutex
[2004/04/18 10:40:10, 3] libads/kerberos_verify.c:ads_verify_ticket(330)
  ads_verify_ticket: krb5_rd_req with auth failed (Bad encryption type)
[2004/04/18 10:40:10, 1] smbd/sesssetup.c:reply_spnego_kerberos(173)
  Failed to verify incoming ticket!

Could anybody help me ? 
Does anybody have a list of MIT Kerberos 1.3.3 enctypes ?
Does anybody know what are the enctypes for Windows 2003 Active Directory ?
What does mean "...failed to decrypt with error Decrypt integrity check
failed" in the enctype 3 ?

Thanks

Estevam Henrique

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