Merge branch 'master' of https://github.com/vbwagner/ctypescrypto

diff --cc ctypescrypto/engine.py
index f5bdb7514f007ba6f10e0ae3dadb800a53328e90,f5bdb7514f007ba6f10e0ae3dadb800a53328e90..79f6218aa0a3beee5558bec9f357d9f1cb47cd5d
--- 1/ctypescrypto/engine.py
--- 2/ctypescrypto/engine.py
+++ b/ctypescrypto/engine.py
@@@ -69,3 -69,3 +69,7 @@@ libcrypto.ENGINE_set_default.argtypes 
  libcrypto.ENGINE_ctrl_cmd_string.argtypes = (c_void_p, c_char_p, c_char_p,
                                               c_int)
  libcrypto.ENGINE_finish.argtypes = (c_char_p, )
++libcrypto.ENGINE_init.argtypes = (c_void_p, )
++libcrypto.UI_OpenSSL.restype = c_void_p
++libcrypto.ENGINE_load_private_key.argtypes = (c_void_p, c_char_p, c_void_p, c_void_p)
++libcrypto.ENGINE_load_private_key.restype = c_void_p