**Differential cryptanalysis** is a general form of cryptanalysis applicable primarily to block ciphers, but also to stream ciphers and cryptographic hash functions. In the broadest sense, it is the study of how differences in an input can affect the resultant difference at the output. In the case of a block cipher, it refers to a set of techniques for tracing differences through the network of transformations, discovering where the cipher exhibits non-random behaviour, and exploiting such properties to recover the secret key.

Read more about Differential Cryptanalysis: History, Attack Mechanics, Attack in Detail, Specialized Types

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### Famous quotes containing the word differential:

“But how is one to make a scientist understand that there is something unalterably deranged about *differential* calculus, quantum theory, or the obscene and so inanely liturgical ordeals of the precession of the equinoxes.”

—Antonin Artaud (1896–1948)