Restore compatibility with KDCs using key usage 8 to encrypt TGS
replies in a subkey, by implementing a fallback in
krb5_arcfour_decrypt.


https://github.com/krb5/krb5/commit/689473cbbd1fc5a750e0edc8292ad8f6f51e0496
Commit By: ghudson
Revision: 22357
Changed Files:
U   trunk/src/lib/crypto/arcfour/arcfour.c
U   trunk/src/lib/crypto/t_encrypt.c