(UI_UTIL_read_pw_string): make the prompt argument const.
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@15024 ec53bebd-3082-4978-b11e-865c3cabbd6b
s-box and p permutation from Richard Outerbridge implemtation (in
public domain). The DES modes are implemented by me. ui.c code are
from appl/login.
The implementation is about 3 times slower then Eric for encryption,
and about the same speed for key setup.
git-svn-id: svn://svn.h5l.se/heimdal/trunk/heimdal@14585 ec53bebd-3082-4978-b11e-865c3cabbd6b
