hi,

is there such a thing as a "fast encryption algorithm" (excluding xor encryption)?

i need to send encrypted information via the serial port. most of the encryption algos that i found across the net are quite complex to implement using assembly lang. as much as possible i would like to do things in assembly since i want to get real control over the entire code.

what i am thinking of is how to send an encrypted data (8bits) via the serial port w/o having to send the key needed for decrypting it...

do you have any ideas, or suggestions?

thanks a lot!