A bug in function generate_sub_keys

[xiekch]

Hi, the code is well-written but I find a bug in the function generate_sub_keys. You don't initialize the key_sets before using it neither before calling the function. Thus the generated keys go wrong in my test.
My suggestion is as follows. Just add memset(key_sets, 0, 17 * sizeof(key_set); in the top of the function.

[xiekch]

You initialized the first subkey but it is not enough

[CreazyMouse]

yes, befer generate_sub_keys should add memset(key_sets, 0, 17 * sizeof(key_set));

[HelloTodayWolrd]

yes, thank you

[123yongming]

Bravo!