* IMplement etype_info in KDC. If the request contains any new

* IMplement etype_info in KDC.  If the request contains any new
enctypes (currently AES but anything not explicitly listed as old)
then only etype_info2 is sent back in response.  Send back etype_info2
all the time.  Also send back etype_info2 to provide salt and
s2kparams with AS reply not just for preauth errors.

* Expose interface for getting string2key with parameters (previously
implemented but not exported)

* IN the client (at least for get_init_creds interface) prfer
etype_info2 to etype_info and pw_salt.  Pass s2kparams and use
string2key_with_params.

Ticket: 1454
Status: open
Target_Version: 1.3

git-svn-id: svn://anonsvn.mit.edu/krb5/trunk@15412 dc483132-0cff-0310-8789-dd5450dbe970