secret-key cryptographic system
121Rotor machine — In cryptography, a rotor machine is an electro mechanical device used for encrypting and decrypting secret messages. Rotor machines were the cryptographic state of the art for a brief but prominent period of history; they were in widespread use… …
122E-imza — This article concerns cryptographic signatures. For signatures in digital form, see electronic signature. In cryptography, a digital signature or digital signature scheme is a type of asymmetric cryptography used to simulate the security… …
123Signals intelligence — SIGINT redirects here. For the UNIX signal, see SIGINT (POSIX). RAF Menwith Hill, a large site in the United Kingdom, part of ECHELON and the UK USA Security Agreement. Signals intelligence (often contracted to SIGINT) is intelligence gathering… …
124NSA cryptography — The vast majority of the National Security Agency s work on encryption is classified, but from time to time NSA participates in standards processes or otherwise publishes information about its cryptographic algorithms. The NSA has categorized… …
125Timeline of cryptography — Below is a timeline of notable events related to cryptography.BCE *3500s The Sumerians develop cuneiform writing and the Egyptians develop hieroglyphic writing. *1500s The Phoenicians develop an alphabet *600 500 Hebrew scholars make use of… …
126Encryption — Encrypt redirects here. For the film, see Encrypt (film). This article is about algorithms for encryption and decryption. For an overview of cryptographic technology in general, see Cryptography. In cryptography, encryption is the process of… …
127Electronic signature — The term electronic signature has several meanings. Among the more expansive is that given by US law, influenced by ABA committee white papers and the uniform law promulgated by the National Conference of Commissioners on Uniform State Laws… …
128BitLocker Drive Encryption — infobox software caption = developer = Microsoft latest release version = 1.0 latest release date = January 30, 2007 programming language = C, C++, AssemblerFact|date=June 2008 operating system = Windows Vista, Windows Server 2008 language =… …
