Index Of Coincidence
In cryptography, coincidence counting is the technique (invented by William F. Friedman) of putting two texts side-by-side and counting the number of times that identical letters appear in the same position in both texts. This count, either as a ratio of the total or normalized by dividing by the expected count for a random source model, is known as the index of coincidence.
Read more about Index Of Coincidence: Application, Generalization, Example
Famous quotes containing the words index and/or coincidence:
“Exile as a mode of genius no longer exists; in place of Joyce we have the fragments of work appearing in Index on Censorship.”
—Nadine Gordimer (b. 1923)
“... there was the first Balkan war and the second Balkan war and then there was the first world war. It is extraordinary how having done a thing once you have to do it again, there is the pleasure of coincidence and there is the pleasure of repetition, and so there is the second world war, and in between there was the Abyssinian war and the Spanish civil war.”
—Gertrude Stein (1874–1946)