Binary XOR (eXclusive OR).
If cleartext is… | And key value is… | Then the result is… |
---|---|---|
0 | 0 | 0 |
0 | 1 | 1 |
1 | 0 | 1 |
1 | 1 | 0 |
Using a binary key you can encrypt the data, with a basic XOR cipher. As long as you have the binary key you can decrypt the data.