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#!/usr/bin/python
from k5test import *
rollover_krb5_conf = {'all' : {'libdefaults' : {'allow_weak_crypto' : 'true'}}}
realm = K5Realm(krbtgt_keysalt='des-cbc-crc:normal',
krb5_conf=rollover_krb5_conf)
princ1 = 'host/test1@%s' % (realm.realm,)
princ2 = 'host/test2@%s' % (realm.realm,)
realm.addprinc(princ1)
realm.addprinc(princ2)
realm.run_as_client([kvno, realm.host_princ])
# Change key for TGS, keeping old key.
realm.run_kadminl('cpw -randkey -e aes256-cts:normal -keepold krbtgt/%s@%s' %
(realm.realm, realm.realm))
# Ensure that kvno still works with an old TGT.
realm.run_as_client([kvno, princ1])
realm.run_kadminl('purgekeys krbtgt/%s@%s' % (realm.realm, realm.realm))
# Make sure an old TGT fails after purging old TGS key.
realm.run_as_client([kvno, princ2], expected_code=1)
output = realm.run_as_client([klist, '-e'])
expected = 'krbtgt/%s@%s\n\tEtype (skey, tkt): des-cbc-crc, des-cbc-crc' % \
(realm.realm, realm.realm)
if expected not in output:
fail('keyrollover: expected TGS enctype not found')
# Check that new key actually works.
realm.kinit(realm.user_princ, password('user'))
realm.run_as_client([kvno, realm.host_princ])
output = realm.run_as_client([klist, '-e'])
expected = 'krbtgt/%s@%s\n\tEtype (skey, tkt): ' \
'aes256-cts-hmac-sha1-96, aes256-cts-hmac-sha1-96' % \
(realm.realm, realm.realm)
if expected not in output:
fail('keyrollover: expected TGS enctype not found after change')
success('keyrollover')
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