About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 57. Chapters: Data Encryption Standard, Blowfish, Triple DES, Advanced Encryption Standard, International Data Encryption Algorithm, Block cipher, RC5, RC6, Format-preserving encryption, Tiny Encryption Algorithm, Hasty Pudding cipher, Camellia, XXTEA, Content Scramble System, SHACAL, Khufu and Khafre, KeeLoq, Cipher security summary, Skipjack, Twofish, SAFER, GOST, Serpent, Cryptomeria cipher, Substitution-permutation network, CAST-128, FEAL, FROG, COCONUT98, MISTY1, NewDES, DFC, Intel Cascade Cipher, MacGuffin, ICE, MULTI2, LOKI97, Hierocrypt, Akelarre, Xmx, SEED, Threefish, Cellular Message Encryption Algorithm, RC2, Idea NXT, MARS, SXAL/MBAL, Anubis, BassOmatic, KHAZAD, 3-Way, Crab, SMS4, FEA-M, BATON, CIPHERUNICORN-E, ABC, KFB mode, MultiSwap, CIKS-1, ARIA, CIPHERUNICORN-A, SHARK, M6, BaseKing, KN-Cipher, MMB, DEAL, Spectr-H64, Zodiac, New Data Seal, Treyfer, SC2000, Mercy, Ladder-DES, CAST-256, Cobra ciphers, MAGENTA, GDES, NOEKEON, MESH, Iraqi block cipher, Injected-Block Cipher RBSC algorithm, CRYPTON, NUSH, E2, Square, Key whitening, CLEFIA, REDOC, IAPM, Red Pike, UES, Nimbus, Grand Cru, SAVILLE, CS-Cipher, Xenon, S-1 block cipher, M8, Product cipher, Libelle. Excerpt: The Data Encryption Standard (DES) is a block cipher that uses shared secret encryption. It was selected by the National Bureau of Standards as an official Federal Information Processing Standard (FIPS) for the United States in 1976 and which has subsequently enjoyed widespread use internationally. It is based on a symmetric-key algorithm that uses a 56-bit key. The algorithm was initially controversial because of classified design elements, a relatively short key length, and suspicions about a National Security Agency (NSA) backdoor. DES consequently came under intense academic scrutiny which motivated the modern understanding of block ciphers and their c...
