ELI5: Explain Like I'm 5

xor cipher

Xor cipher is a way of encrypting words or other information. It works by taking two pieces of information and comparing them to each other. For each bit, the xor cipher takes one bit from each piece of information and then compares them (1's and 0's). If they are both the same, it gives a 0. If they are different, it gives a 1. Then it makes a new combination out of the 0's and 1's. This new number will be the encrypted version of the original information. To unscramble it, you just do the same process again using your secret key.
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