I guess you are done with Caesar I, aren't you?
The big problem with caesar is that it does not allow digits or other characters.
I have fixed this, and now I can use any ascii character in the plaintext.
The keyspace has increased from 26 to 128 too. \o/

Enjoy!

6F 17 17 0C 20 12 17 0A 54 20 21 17 1D 20 1B 17
14 1E 0D 0C 20 17 16 0D 20 15 17 1A 0D 20 0B 10
09 14 14 0D 16 0F 0D 20 11 16 20 21 17 1D 1A 20
12 17 1D 1A 16 0D 21 56 20 7C 10 11 1B 20 17 16
0D 20 1F 09 1B 20 0E 09 11 1A 14 21 20 0D 09 1B
21 20 1C 17 20 0B 1A 09 0B 13 56 20 7F 09 1B 16
4F 1C 20 11 1C 67 20 59 5A 60 20 13 0D 21 1B 20
11 1B 20 09 20 19 1D 11 1C 0D 20 1B 15 09 14 14
20 13 0D 21 1B 18 09 0B 0D 54 20 1B 17 20 11 1C
20 1B 10 17 1D 14 0C 16 4F 1C 20 10 09 1E 0D 20
1C 09 13 0D 16 20 21 17 1D 20 1C 17 17 20 14 17
16 0F 20 1C 17 20 0C 0D 0B 1A 21 18 1C 20 1C 10
11 1B 20 15 0D 1B 1B 09 0F 0D 56 20 7F 0D 14 14
20 0C 17 16 0D 54 20 21 17 1D 1A 20 1B 17 14 1D
1C 11 17 16 20 11 1B 20 15 15 0E 0C 15 10 16 0A
0A 0D 09 0E 56