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.

2C 79 73 F1 63 E6 D8 19 7F E6 D8 FF 79 73 35 D6
C8 FA BB FF 35 C8 79 73 B8 C8 83 E6 35 C8 BB E6
63 2E B8 63 3B C8 FD 19 D8 C8 D3 79 19 C8 F1 79
D8 C8 FF D8 D6 C8 57 B8 63 D3 C8 83 B8 7F 7F C8
2E 79 73 B8 C8 15 B8 7F 7F 79 83 C8 BB E6 02 F4
B8 63 D6 C8 FA BB B8 C8 0F 63 79 FD 7F B8 C0 C8
83 FF D8 BB C8 D8 BB FF 35 C8 02 FF 0F BB B8 63
C8 FF 35 C8 D8 BB E6 D8 C8 D8 BB B8 C8 F4 B8 D3
C8 FF 35 C8 0F 63 B8 D8 D8 D3 C8 7F 79 73 F1 D6
C8 38 C8 83 FF 7F 7F C8 02 79 C0 B8 C8 19 0F C8
83 FF D8 BB C8 E6 C8 FD B8 D8 D8 B8 63 C8 B8 73
02 63 D3 0F D8 FF 79 73 C8 35 BB B8 C0 B8 C8 E6
73 D3 C8 35 79 79 73 D6 C8 B0 79 19 63 C8 35 79
7F 19 D8 FF 79 73 C8 FF 35 70 C8 E6 0F 2E 7F 63
B8 63 FF E6 73 BB BB D6