Block ciphers
Feistel ciphers
Data Encryption Standard
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Data Encryption Standard
The Data Encryption Standard (DES, /ˌdiːˌiːˈɛs/ or /ˈdɛz/) was once a predominant symmetric-key algorithm for the encryption of electronic data. It was highly influential in the advancement of modern ...
Data Encryption Standard - Wikipedia
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GOST (block cipher)
The GOST block cipher, defined in the standard GOST 28147-89, is a Soviet and Russian government standard symmetric key block cipher. Also based on this block cipher is the GOST hash function.Develope...
GOST (block cipher) - Wikipedia
LOKI
XTEA
In cryptography, XTEA (eXtended TEA) is a block cipher designed to correct weaknesses in TEA. The cipher's designers were David Wheeler and Roger Needham of the Cambridge Computer Laboratory, and the ...
XTEA - Wikipedia
BEAR and LION ciphers
The BEAR and LION block ciphers were invented by Ross Anderson and Eli Biham by combining a stream cipher and a cryptographic hash function. The algorithms use a very large variable block size, on the...
Twofish
In cryptography, Twofish is a symmetric key block cipher with a block size of 128 bits and key sizes up to 256 bits. It was one of the five finalists of the Advanced Encryption Standard contest, but i...
DES-X
In cryptography, DES-X (or DESX) is a variant on the DES (Data Encryption Standard) symmetric-key block cipher intended to increase the complexity of a brute force attack using a technique called key ...
Khufu and Khafre
In cryptography, Khufu and Khafre are two block ciphers designed by Ralph Merkle in 1989 while working at Xerox's Palo Alto Research Center. Along with Snefru, a cryptographic hash function, the ciphe...
CS-Cipher
In cryptography, CS-Cipher (for Chiffrement Symétrique) is a block cipher invented by Jacques Stern and Serge Vaudenay in 1998. It was submitted to the NESSIE project, but was not selected.The algorit...
Xenon (cipher)
In cryptography, Xenon is a block cipher designed in the year 2000 by Chang-Hyi Lee for the Korean firm SoftForum.The algorithm uses a key size of 128, 192, or 256 bits. It operates on blocks of 128 b...
Xenon (cipher) - Wikipedia
Zodiac (cipher)
In cryptography, Zodiac is a block cipher designed in 2000 by Chang-Hyi Lee for the Korean firm SoftForum.Zodiac uses a 16-round Feistel network structure with key whitening. The round function uses o...
SEED
Mercy (cipher)
In cryptography, Mercy is a tweakable block cipher designed by Paul Crowley for disk encryption.The block size is 4096 bits—unusually large for a block cipher, but a standard disk sector size. M...
M8 (cipher)
In cryptography, M8 is a block cipher designed by Hitachi in 1999. It is a modification of Hitachi's earlier M6 algorithm, designed for greater security and high performance in both hardware and 32-bi...
M8 (cipher) - Wikipedia
FEAL
In cryptography, FEAL (the Fast data Encipherment ALgorithm) is a block cipher proposed as an alternative to the Data Encryption Standard (DES), and designed to be much faster in software. The Feistel...
FEAL - Wikipedia
Feistel cipher
In cryptography, a Feistel cipher is a symmetric structure used in the construction of block ciphers, named after the German-born physicist and cryptographer Horst Feistel who did pioneering research ...
E2 (cipher)
In cryptography, E2 is a symmetric block cipher which was created in 1998 by NTT and submitted to the AES competition.Like other AES candidates, E2 operates on blocks of 128 bits, using a key of 128, ...
Blowfish (cipher)
Blowfish is a symmetric-key block cipher, designed in 1993 by Bruce Schneier and included in a large number of cipher suites and encryption products. Blowfish provides a good encryption rate in softwa...
Blowfish (cipher) - Wikipedia
DESCHALL Project
DESCHALL, short for DES Challenge, was the first group to publicly break a message which used the Data Encryption Standard (DES), becoming the $10,000 winner of the first of the set of DES Challenges ...
LOKI97
In cryptography, LOKI97 is a block cipher which was a candidate in the Advanced Encryption Standard competition. It is a member of the LOKI family of ciphers, earlier instances being LOKI89 and LOKI91...
LOKI97 - Wikipedia
CDMF
In cryptography, CDMF (Commercial Data Masking Facility) is an algorithm developed at IBM in 1992 to reduce the security strength of the 56-bit DES cipher to that of 40-bit encryption, at the time a r...
Ladder-DES
In cryptography, Ladder-DES is a block cipher designed in 1994 by Terry Ritter. It is a 4-round Feistel cipher with a block size of 128 bits, using DES as the round function. It has no actual key sche...
DEAL
In cryptography, DEAL (Data Encryption Algorithm with Larger blocks) is a symmetric block cipher derived from the Data Encryption Standard (DES). The design was proposed in a report by Lars Knudsen in...
Honey Encryption
Honey Encryption is a type of data encryption that "produces a ciphertext, which, when decrypted with an incorrect key as guessed by the attacker, presents a plausible-looking yet incorrect plaintext ...
Lucifer (cipher)
In cryptography, Lucifer was the name given to several of the earliest civilian block ciphers, developed by Horst Feistel and his colleagues at IBM. Lucifer was a direct precursor to the Data Encrypt...
MISTY1
In cryptography, MISTY1 (or MISTY-1) is a block cipher designed in 1995 by Mitsuru Matsui and others for Mitsubishi Electric.MISTY1 is one of the selected algorithms in the European NESSIE project, an...
DFC (cipher)
In cryptography, DFC (Decorrelated Fast Cipher) is a symmetric block cipher which wascreated in 1998 by a group of researchers from École Normale Supérieure, CNRS, and France Télécom (including Jacque...
ICE (cipher)
In cryptography, ICE (Information Concealment Engine) is a symmetric-key block cipher published by Kwan in 1997. The algorithm is similar in structure to DES, but with the addition of a key-dependent ...
ICE (cipher) - Wikipedia