In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called a block, with an unvarying transformation that is specified by a symmetric key.
Bruce Schneier (born January 15, 1963, is an American cryptographer, computer security professional, privacy specialist and writer. He is the author of several books on general security topics, computer security and cryptography. Schneier is a fellow at the Berkman Center for Internet & Society at Harvard Law School, a program fellow at the New America Foundation's Open Technology Institute. He has been working for IBM since they acquired Resilient Systems where Schneier was CTO. He is also a contributing writer for The Guardian news organization.
Classified information is material that a government body deems to be sensitive information that must be protected.
Cryptography or cryptology (from κρυπτός|translit.
David A. Wagner (born 1974) is a Professor of Computer Science at the University of California, Berkeley and a well-known researcher in cryptography and computer security.
A hoax is a falsehood deliberately fabricated to masquerade as the truth.
In cryptography, the Iraqi block cipher was a block cipher published in C source code form by anonymous FTP upload around July 1999, and widely distributed on Usenet.
In cryptography, the so-called product ciphers are a certain kind of cipher, where the (de-)ciphering of data is typically done as an iteration of rounds.
A product defect is any characteristic of a product which hinders its usability for the purpose for which it was designed and manufactured.
In cryptography, Skipjack is a block cipher—an algorithm for encryption—developed by the U.S. National Security Agency (NSA).
In computing, source code is any collection of code, possibly with comments, written using a human-readable programming language, usually as plain text.
Usenet is a worldwide distributed discussion system available on computers.