Ad blocker interference detected!
Wikia is a free-to-use site that makes money from advertising. We have a modified experience for viewers using ad blockers
Wikia is not accessible if you’ve made further modifications. Remove the custom ad blocker rule(s) and the page will load as expected.
The strength of a symmetric cipher depends on both parties keeping the key secret from others. With DES, for example, the algorithm is known, so revealing the encryption key permits the message to be read by any third party.