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!

6B 13 13 08 20 0E 13 06 50 20 1D 13 19 20 17 13
10 1A 09 08 20 13 12 09 20 11 13 16 09 20 07 0C
05 10 10 09 12 0B 09 20 0D 12 20 1D 13 19 16 20
0E 13 19 16 12 09 1D 52 20 78 0C 0D 17 20 13 12
09 20 1B 05 17 20 0A 05 0D 16 10 1D 20 09 05 17
1D 20 18 13 20 07 16 05 07 0F 52 20 7B 05 17 12
4B 18 20 0D 18 63 20 55 56 5C 20 0F 09 1D 17 20
0D 17 20 05 20 15 19 0D 18 09 20 17 11 05 10 10
20 0F 09 1D 17 14 05 07 09 50 20 17 13 20 0D 18
20 17 0C 13 19 10 08 12 4B 18 20 0C 05 1A 09 20
18 05 0F 09 12 20 1D 13 19 20 18 13 13 20 10 13
12 0B 20 18 13 20 08 09 07 16 1D 14 18 20 18 0C
0D 17 20 11 09 17 17 05 0B 09 52 20 7B 09 10 10
20 08 13 12 09 50 20 1D 13 19 16 20 17 13 10 19
18 0D 13 12 20 0D 17 20 11 11 0A 08 11 0C 12 06
06 09 05 0A 52