Back to Parity Addition Labs: Cryptography. Part 1.

Parity Addition. Example 1.


Problem: 01 oplus 11 = ?.

Answer: 01 oplus 11 = 10.

Explanation:

01
oplus11

Remember that parity addition does not have a carry! If we take the first column from the right, we get in parity addition:
1 oplus 1 = 0 no carry

The rightmost digit of our answer is therefore 0. Second column from the right: 0 oplus 1 = 1.

So our answer is: 1 0!

(Note that since there are no carries here, we don't have to start from the right: we can do the parity addition in every column separately, without worrying about carries from other columns.)

Back to Parity Addition Last Modified: August 2008