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.

D5 90 F0 2E 9C 76 45 C7 14 76 45 DB 90 F0 20 0B
42 B1 E8 DB 20 42 90 F0 92 42 69 76 20 42 E8 76
9C D0 92 9C C9 42 DF C7 45 42 B7 90 C7 42 2E 90
45 42 DB 45 0B 42 5E 92 9C B7 42 69 92 14 14 42
D0 90 F0 92 42 8E 92 14 14 90 69 42 E8 76 9B 30
92 9C 0B 42 B1 E8 92 42 AF 9C 90 DF 14 92 0A 42
69 DB 45 E8 42 45 E8 DB 20 42 9B DB AF E8 92 9C
42 DB 20 42 45 E8 76 45 42 45 E8 92 42 30 92 B7
42 DB 20 42 AF 9C 92 45 45 B7 42 14 90 F0 2E 0B
42 52 42 69 DB 14 14 42 9B 90 0A 92 42 C7 AF 42
69 DB 45 E8 42 76 42 DF 92 45 45 92 9C 42 92 F0
9B 9C B7 AF 45 DB 90 F0 42 20 E8 92 0A 92 42 76
F0 B7 42 20 90 90 F0 0B 42 98 90 C7 9C 42 20 90
14 C7 45 DB 90 F0 42 DB 20 5D 42 AF 92 D0 90 9B
0A 0A F0 8E DF AF 76 0B