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  2. Cryptography - Wikipedia

    en.wikipedia.org/wiki/Cryptography

    Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in actual practice by any adversary. While it is theoretically possible to break into a well-designed system, it is infeasible in actual ...

  3. Communication Theory of Secrecy Systems - Wikipedia

    en.wikipedia.org/wiki/Communication_Theory_of...

    It is one of the foundational treatments (arguably the foundational treatment) of modern cryptography. [2] His work has been described as a "turning point, and marked the closure of classical cryptography and the beginning of modern cryptography." [3] It has also been described as turning cryptography from an "art to a science". [4]

  4. Kerckhoffs's principle - Wikipedia

    en.wikipedia.org/wiki/Kerckhoffs's_principle

    This concept is widely embraced by cryptographers, in contrast to security through obscurity, which is not. Kerckhoffs's principle was phrased by American mathematician Claude Shannon as "the enemy knows the system", [1] i.e., "one ought to design systems under the assumption that the enemy will immediately gain full familiarity with them".

  5. Confusion and diffusion - Wikipedia

    en.wikipedia.org/wiki/Confusion_and_diffusion

    In cryptography, confusion and diffusion are two properties of a secure cipher identified by Claude Shannon in his 1945 classified report A Mathematical Theory of Cryptography. [1] These properties, when present, work together to thwart the application of statistics , and other methods of cryptanalysis .

  6. Theoretical computer science - Wikipedia

    en.wikipedia.org/wiki/Theoretical_computer_science

    Modern cryptography is heavily based on mathematical theory and computer science practice; cryptographic algorithms are designed around computational hardness assumptions, making such algorithms hard to break in practice by any adversary. It is theoretically possible to break such a system, but it is infeasible to do so by any known practical ...

  7. Outline of cryptography - Wikipedia

    en.wikipedia.org/wiki/Outline_of_cryptography

    The following outline is provided as an overview of and topical guide to cryptography: Cryptography (or cryptology) – practice and study of hiding information. Modern cryptography intersects the disciplines of mathematics, computer science, and engineering. Applications of cryptography include ATM cards, computer passwords, and electronic ...

  8. Chaotic cryptology - Wikipedia

    en.wikipedia.org/wiki/Chaotic_cryptology

    Cryptography refers to encrypting information for secure transmission, whereas cryptanalysis refers to decrypting and deciphering encoded encrypted messages. In order to use chaos theory efficiently in cryptography, the chaotic maps are implemented such that the entropy generated by the map can produce required Confusion and diffusion.

  9. Category:Theory of cryptography - Wikipedia

    en.wikipedia.org/.../Category:Theory_of_cryptography

    Theory of cryptography refers to the study of cryptographic algorithms and protocols in a formal framework. The two main goals of the study are definitions and proofs of security. The two main goals of the study are definitions and proofs of security.