Python中的单字节乘法？

Question

I have a requirement to decode a file using simple byte multiplication

For every byte in the file, the byte value is muliplied by 0x69. The result cannot be a word, it must be a single byte.

example:

0x24 * 0x69 = 0xc4
0x6c * 0x69 = 0x4c
etc.

Sorry for not posting code, but have no idea on an existing approach. Thanks

Answer 1

What about

(0x6c * 0x69) & 0xFF

?

And if you want the hex representation in a string, you can do:

hex(result)