Example
Let
be the key and suppose the plaintext message is HELP. Then this plaintext is represented by two pairs
Then we compute
and continue encryption as follows:
The matrix K is invertible, hence exists such that . To implement decrypting, we compute
Then we compute
Therefore
.
Read more about this topic: Hill Cipher
Famous quotes containing the word example:
“Our intellect is not the most subtle, the most powerful, the most appropriate, instrument for revealing the truth. It is life that, little by little, example by example, permits us to see that what is most important to our heart, or to our mind, is learned not by reasoning but through other agencies. Then it is that the intellect, observing their superiority, abdicates its control to them upon reasoned grounds and agrees to become their collaborator and lackey.”
—Marcel Proust (1871–1922)