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ISO/IEC 11770-4:2006 Information technology—Security techniques—Key management—Part 4: Mechanisms based on weak secrets. IEEE Std 802.11-2012: IEEE Standard for Information Technology – Part 11 Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specification. IEEE. 2012. ISBN 978-0-7381-8469-2. OCLC 1017978449.
Hill's cipher machine, from figure 4 of the patent. In classical cryptography, the Hill cipher is a polygraphic substitution cipher based on linear algebra.Invented by Lester S. Hill in 1929, it was the first polygraphic cipher in which it was practical (though barely) to operate on more than three symbols at once.
Chaotic cryptology is the application of mathematical chaos theory to the practice of cryptography, the study or techniques used to privately and securely transmit information with the presence of a third-party or adversary. Since first being investigated by Robert Matthews in 1989, [1] the use of chaos in cryptography has attracted much ...
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 ...
Feistel networks gained respectability when the U.S. Federal Government adopted the DES (a cipher based on Lucifer, with changes made by the NSA) in 1976. Like other components of the DES, the iterative nature of the Feistel construction makes implementing the cryptosystem in hardware easier (particularly on the hardware available at the time ...
In cryptography, key stretching techniques are used to make a possibly weak key, typically a password or passphrase, more secure against a brute-force attack by increasing the resources (time and possibly space) it takes to test each possible key.
The algorithm is based on the hardness of decoding a general linear code (which is known to be NP-hard [3]). For a description of the private key, an error-correcting code is selected for which an efficient decoding algorithm is known, and that is able to correct t {\displaystyle t} errors.
The modern design of block ciphers is based on the concept of an iterated product cipher. In his seminal 1949 publication, Communication Theory of Secrecy Systems , Claude Shannon analyzed product ciphers and suggested them as a means of effectively improving security by combining simple operations such as substitutions and permutations . [ 6 ]