I have created an advanced version of the simple substitution cipher.
It can now use chars in range from 0-255, but that should not stop you.
The ciphertext is in the language of this text, and uses correct punctuation and case-sensitivity.

A4 BB 80 FF DD 34 7B 3E 42 34 7B 77 BB 80 3C 85
24 09 8B 77 3C 24 BB 80 25 24 C3 34 3C 24 8B 34
DD 45 25 DD DB 24 E5 3E 7B 24 9B BB 3E 24 FF BB
7B 24 77 7B 85 24 41 25 DD 9B 24 C3 25 42 42 24
45 BB 80 25 24 20 25 42 42 BB C3 24 8B 34 72 AF
25 DD 85 24 09 8B 25 24 3D DD BB E5 42 25 39 24
C3 77 7B 8B 24 7B 8B 77 3C 24 72 77 3D 8B 25 DD
24 77 3C 24 7B 8B 34 7B 24 7B 8B 25 24 AF 25 9B
24 77 3C 24 3D DD 25 7B 7B 9B 24 42 BB 80 FF 85
24 2E 24 C3 77 42 42 24 72 BB 39 25 24 3E 3D 24
C3 77 7B 8B 24 34 24 E5 25 7B 7B 25 DD 24 25 80
72 DD 9B 3D 7B 77 BB 80 24 3C 8B 25 39 25 24 34
80 9B 24 3C BB BB 80 85 24 64 BB 3E DD 24 3C BB
42 3E 7B 77 BB 80 24 77 3C F9 24 34 3D 45 42 DD
25 DD 77 34 80 8B 8B 85