Cryptography, the use of codes and ciphers, began thousands of years ago. Until recent decades, it has been the story of what might be called classical...

In cryptography, a salt is random data fed as an additional input to a one-way function that hashes data, a password or passphrase. Salting helps defend...

the practice and study of techniques for secure communication in the presence of adversarial behavior. More generally, cryptography is about constructing...

Public-key cryptography, or asymmetric cryptography, is the field of cryptographic systems that use pairs of related keys. Each key pair consists of a public...

A key in cryptography is a piece of information, usually a string of numbers or letters that are stored in a file, which, when processed through a cryptographic...

Books on cryptography have been published sporadically and with variable quality for a long time. This is despite the paradox that secrecy is of the essence...

Cryptography was used extensively during World War II because of the importance of radio communication and the ease of radio interception. The nations...

that uses cryptography to control its creation and management rather than relying on central authorities. Originally designed as a medium of exchange,...

the History of Telecommunications", Cryptologia, 13 (2): 97–117, doi:10.1080/0161-118991863817 (reprinted in Selections from Cryptologia: History, People...

declared war in the fall of 1939, the German government began sending technical assistance to upgrade their communications and cryptography capabilities. One...

In cryptography, encryption (more specifically, encoding) is the process of transforming information in a way that, ideally, only authorized parties can...

Also published in 1967, David Kahn's comprehensive chronicle of the history of cryptography, The Codebreakers, does not mention Bletchley Park, although...

Code Book describes some illustrative highlights in the history of cryptography, drawn from both of its principal branches, codes and ciphers. Thus the book's...

In the history of cryptography, M-325, also known as SIGFOY, was an American rotor machine designed by William F. Friedman and built in 1944. Between...

history of cryptography, a grille cipher was a technique for encrypting a plaintext by writing it onto a sheet of paper through a pierced sheet (of paper...

computer security standard used to approve cryptographic modules. The title is Security Requirements for Cryptographic Modules. Initial publication was on March...

Quantum cryptography is the science of exploiting quantum mechanical properties to perform cryptographic tasks. The best known example of quantum cryptography...

Visual cryptography is a cryptographic technique which allows visual information (pictures, text, etc.) to be encrypted in such a way that the decrypted...

Geheimfernschreiber Photographs of Sturgeon Entry for "Sturgeon" in the Government Code and Cypher School Cryptographic Dictionary Bletchley Park's Sturgeon...

In cryptography, a substitution cipher is a method of encrypting in which units of plaintext are replaced with the ciphertext, in a defined manner, with...

algorithms are algorithms for cryptography that use the same cryptographic keys for both the encryption of plaintext and the decryption of ciphertext. The keys...

In cryptography, padding is any of a number of distinct practices which all include adding data to the beginning, middle, or end of a message prior to...

methods and techniques of cryptanalysis have changed drastically through the history of cryptography, adapting to increasing cryptographic complexity, ranging...

"Kryptos Donuts" in the sixth episode of The Recruit's Season 1, "I.N.A.S.I.A.L.". Copiale cipher History of cryptography Voynich manuscript The left-side...

A cryptographic protocol is an abstract or concrete protocol that performs a security-related function and applies cryptographic methods, often as sequences...

 615. University of California at Berkeley Public Information Office (January 29, 1997). "The only legally exportable cryptography level is totally insecure;...

Elliptic-curve cryptography (ECC) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields. ECC...

the open cryptographic community, and helped to increase confidence in the security of the winning algorithm from those who were suspicious of backdoors...

In cryptography, a classical cipher is a type of cipher that was used historically but for the most part, has fallen into disuse. In contrast to modern...

In RSA-based cryptography, a user's private key—which can be used to sign messages, or decrypt messages sent to that user—is a pair of large prime numbers...