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.

3E 7F CC F1 C3 37 C7 BA FB 37 C7 52 7F CC 6B 2C
CD 12 C9 52 6B CD 7F CC B1 CD F7 37 6B CD C9 37
C3 0B B1 C3 5D CD 27 BA C7 CD 66 7F BA CD F1 7F
C7 CD 52 C7 2C CD 1C B1 C3 66 CD F7 B1 FB FB CD
0B 7F CC B1 CD DC B1 FB FB 7F F7 CD C9 37 7C AF
B1 C3 2C CD 12 C9 B1 CD 05 C3 7F 27 FB B1 B3 CD
F7 52 C7 C9 CD C7 C9 52 6B CD 7C 52 05 C9 B1 C3
CD 52 6B CD C7 C9 37 C7 CD C7 C9 B1 CD AF B1 66
CD 52 6B CD 05 C3 B1 C7 C7 66 CD FB 7F CC F1 2C
CD ED CD F7 52 FB FB CD 7C 7F B3 B1 CD BA 05 CD
F7 52 C7 C9 CD 37 CD 27 B1 C7 C7 B1 C3 CD B1 CC
7C C3 66 05 C7 52 7F CC CD 6B C9 B1 B3 B1 CD 37
CC 66 CD 6B 7F 7F CC 2C CD D5 7F BA C3 CD 6B 7F
FB BA C7 52 7F CC CD 52 6B 6C CD 37 05 0B FB C3
B1 C3 52 37 CC C9 C9 2C