krb5-1.14-beta1 is available
weijun.wang at oracle.com
Fri Oct 9 21:22:07 EDT 2015
So in kadmin if a principal is created with -pw there are only strong keys but if password is chosen randomly 3DES and RC4 keys will also be generated? I will need to download it to try out.
Also, is there any change on the client side, say, in a AS-REQ, what is inside the etypes list?
> On Oct 10, 2015, at 9:13 AM, Tom Yu <tlyu at mit.edu> wrote:
> This is a challenging to explain concisely, but basically in Kerberos,
> 3DES and RC4 are still reasonably strong for randomly generated keys but
> not for password-derived ones.
> krb5-devel/doc is master, not the release branch, but it's close enough
> for now.
> Wang Weijun <weijun.wang at oracle.com> writes:
>> You mean all 3DES and RC4 etypes as described in https://tools.ietf.org/html/draft-kaduk-kitten-des-des-des-die-die-die-00? I see 16 and 23 still not marked weak in http://web.mit.edu/kerberos/krb5-devel/doc/admin/conf_files/kdc_conf.html#encryption-types.
>> BTW, is the krb5-devel/doc pages always synced with the latest public beta?
>>> On Oct 10, 2015, at 4:44 AM, Tom Yu <tlyu at mit.edu> wrote:
>>> * Remove the triple-DES and RC4 encryption types from the default
>>> value of supported_enctypes, which determines the default key and
>>> salt types for new password-derived keys. By default, keys will
>>> only created only for AES128 and AES256. This mitigates some types
>>> of password guessing attacks.
More information about the krbdev