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100 Block cipher topics matching:
Filter this Collection| x name | x image | x Key sizes | x Block sizes | x Structure | x article |
|---|---|---|---|---|---|
| x Advanced Encryption Standard | 256 | 128 | Substitution-permutation network |
In cryptography, the Advanced Encryption Standard (AES) is an encryption standard adopted by the U.S. government. The standard comprises three block ciphers, AES-128, AES-192 and AES-256, adopted from a larger collection originally published as...
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| 192 | |||||
| 128 | |||||
| x Data Encryption Standard |
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56 | 64 | Feistel cipher |
The Data Encryption Standard (DES) is a block cipher (a form of shared secret encryption) that 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...
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| x RC5 |
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128 | Feistel cipher |
In cryptography, RC5 is a block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, RC stands for "Rivest Cipher", or alternatively, "Ron's Code" (compare RC2 and RC4). The Advanced Encryption Standard (AES) candidate RC6 was based...
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| 32 | |||||
| 64 | |||||
| x Blowfish |
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64 | Feistel cipher |
Blowfish is a keyed, symmetric 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 software and no effective cryptanalysis of it has...
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| x Twofish |
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192 | 128 | Feistel cipher |
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 was not selected for standardisation. Twofish is...
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| 256 | |||||
| 128 | |||||
| x Triple DES |
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168 | 64 | Feistel cipher |
In cryptography, Triple DES is the common name for the Triple Data Encryption Algorithm (TDEA) block cipher defined in each of:
It is so named because it applies the Data Encryption Standard (DES) cipher algorithm three times to each data block....
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| 112 | |||||
| x Serpent |
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256 | 128 | Substitution-permutation network |
Serpent is a symmetric key block cipher which was a finalist in the Advanced Encryption Standard (AES) contest, where it came second to Rijndael. Serpent was designed by Ross Anderson, Eli Biham, and Lars Knudsen.
Like other AES submissions, Serpent...
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| 128 | |||||
| 192 | |||||
| x 3-Way |
In cryptography, 3-Way is a block cipher designed in 1994 by Joan Daemen, who also (with Vincent Rijmen) designed Rijndael, the winner of NIST's Advanced Encryption Standard (AES) contest.
3-Way has a block size of 96 bits, notably not a power of...
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| x Akelarre |
Akelarre is a block cipher proposed in 1996, combining the basic design of IDEA with ideas from RC5. It was shown to be susceptible to a ciphertext-only attack in 1997.
Akelarre is a 128-bit block cipher with a variable key-length which must be some...
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| x Anubis |
Anubis is a block cipher designed by Vincent Rijmen and Paulo S. L. M. Barreto as an entrant in the NESSIE project. Anubis operates on data blocks of 128 bits, accepting keys of length 32N bits (N = 4, ..., 10). The cipher is not patented and has...
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| x ARIA | |||||
| x BaseKing |
In cryptography, BaseKing is a block cipher designed in 1994 by Joan Daemen. It is very closely related to 3-Way; indeed, the two are variants of the same general cipher technique.
BaseKing has a block size of 192 bits–twice as long as 3-Way, and...
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| x BassOmatic |
In cryptography, BassOmatic was the symmetric-key cipher designed by Phil Zimmermann as part of his email encryption software, PGP (in the first release, version 1.0). Comments in the source code indicate that he had been designing the cipher since...
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| x BATON | |||||
| x BEAR and LION Cipher |
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 order of 2 to 2 bits or more. Both are 3 round...
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| x C2 | |||||
| x Camellia | Feistel cipher |
In cryptography, Camellia is a block cipher that has been evaluated favorably by several organisations, including the European Union's NESSIE project (a selected algorithm), and the Japanese CRYPTREC project (a recommended algorithm). The cipher was...
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| x CAST-128 |
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Feistel cipher |
In cryptography, CAST-128 (alternatively CAST5) is a block cipher used in a number of products, notably as the default cipher in some versions of GPG and PGP. It has also been approved for Canadian government use by the Communications Security...
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| x CAST-256 | 256 | 128 | Feistel cipher |
In cryptography, CAST-256 (or CAST6) is a block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption Standard (AES); however, it was not among the five AES finalists. It is an extension of an earlier cipher,...
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| 128 | |||||
| 192 | |||||
| x CIKS-1 |
In cryptography, CIKS-1 is a block cipher designed in 2002 by A.A. Moldovyan and N.A. Moldovyan. Like its predecessor, Spectr-H64, it relies heavily on permutations of bits, so is better suited to implementation in hardware than in software.
The...
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| x CIPHERUNICORN-A |
In cryptography, CIPHERUNICORN-A is a block cipher created by NEC in 2000. It is among the cryptographic techniques recommended for Japanese government use by CRYPTREC.
The algorithm uses a 16-round Feistel network structure similar to its...
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| x CLEFIA |
CLEFIA is a new block cipher algorithm, developed by Sony. Its name is derived from the French word, clef, meaning key. The block size is 128 bits and the key size can be 128 bit, 192 bit or 256 bit. It is intended to be used in DRM systems.
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| x Cellular Message Encryption Algorithm |
In cryptography, the Cellular Message Encryption Algorithm (CMEA) is a block cipher which was used for securing mobile phones in the United States. CMEA is one of four cryptographic primitives specified in a Telecommunications Industry Association ...
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| x Cobra ciphers |
In cryptography, Cobra is the general name of a family of data-dependent permutation based block ciphers: Cobra-S128, Cobra-F64a, Cobra-F64b, Cobra-H64, and Cobra-H128. In each of these names, the number indicates the cipher's block size, and the...
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| x COCONUT98 |
In cryptography, COCONUT98 (Cipher Organized with Cute Operations and N-Universal Transformation) is a block cipher designed by Serge Vaudenay in 1998. It was one of the first concrete applications of Vaudenay's decorrelation theory, designed to be...
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| x Crab | |||||
| x CRYPTON | 128 | 128 | Substitution-permutation network |
In cryptography, CRYPTON is a block cipher submitted as a candidate for the Advanced Encryption Standard (AES). It is very efficient in hardware implementations and was designed by Chae Hoon Lim of Future Systems Inc.
The CRYPTON algorithm processes...
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| 192 | |||||
| 256 | |||||
| x 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 algorithm uses a key length between 0 and 128 bits ...
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| x DEAL | |||||
| x DES-X |
In cryptography, DES-X (or DESX) is a variant on the DES (Data Encryption Standard) block cipher intended to increase the complexity of a brute force attack using a technique called key whitening.
The original DES algorithm was specified in 1976...
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| x DFC | 192 | 128 | Feistel cipher |
In cryptography, DFC (Decorrelated Fast Cipher) is a block cipher which was created in 1998 by a group of researchers from École Normale Supérieure, CNRS, and France Télécom (including Jacques Stern and Serge Vaudenay) and submitted to the AES...
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| 256 | |||||
| 128 | |||||
| x E2 | 256 | 128 | Feistel cipher |
In cryptography, E2 is a 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, 192, or 256 bits. It uses a 12-round Feistel network. E2...
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| 128 | |||||
| 192 | |||||
| x FEAL |
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128 | 64 | Feistel cipher |
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 based algorithm was first published in 1987 by...
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| 64 | |||||
| x FEA-M |
In cryptography, FEA-M (Fast Encryption Algorithm for Multimedia) is a block cipher developed in 2001 by X. Yi, C. H. Tan, C. K. Siew, and M. R. Syed.
With the unusually large block size of 4096 bits, all of FEA-M's calculations operate on 64×64...
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| x FROG | |||||
| x G-DES | |||||
| x GOST |
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Feistel 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.
Developed in the 1970s, the standard had been marked ...
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| x Grand Cru |
In cryptography, Grand Cru is a block cipher invented in 2000 by Johan Borst. It was submitted to the NESSIE project, but was not selected.
Grand Cru is a 10-round substitution-permutation network based largely on Rijndael (or AES). It replaces a...
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| x Hasty Pudding cipher |
The Hasty Pudding Cipher (HPC) is a variable-block-size block cipher designed by Richard Schroeppel, which was an unsuccessful candidate in the competition for selecting the U.S. Advanced Encryption Standard (AES). It has a number of unusual...
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| x Hierocrypt |
In cryptography, Hierocrypt-L1 and Hierocrypt-3 are block ciphers created by Toshiba in 2000. They were submitted to the NESSIE project, but were not selected. Both algorithms are among the cryptographic techniques recommended for Japanese...
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| x ICE |
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Feistel cipher |
In cryptography, ICE (Information Concealment Engine) is a block cipher published by Kwan in 1997. The algorithm is similar in structure to DES, but with the addition of a key-dependent bit permutation in the round function. The key-dependent bit...
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| x International Data Encryption Algorithm |
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In cryptography, the International Data Encryption Algorithm (IDEA) is a block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described in 1991. The algorithm was intended as a replacement for the Data Encryption Standard...
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| x Idea NXT |
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In cryptography, the IDEA NXT algorithm (previously known as FOX) is a block cipher designed by Pascal Junod and Serge Vaudenay of EPFL (Lausanne, Switzerland). It was conceived between 2001 and 2003, the project was originally named FOX and was...
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| x Intel Cascade Cipher |
In cryptography, the Intel Cascaded Cipher, is a relatively new, high bandwidth block cipher, used as an optional component of the Output Content Protection DRM scheme of the Microsoft Windows Vista operating system. The cipher is based on Advanced...
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| x Iraqi block cipher |
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. It is a five round unbalanced Feistel cipher operating on a 256 bit block with a...
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| x KASUMI | Feistel cipher |
In cryptography, KASUMI, also termed A5/3 when used in GSM and GEA3 when used in GPRS, is a block cipher used in the confidentiality (f8) and integrity algorithms (f9) for 3GPP mobile communications.
KASUMI was designed by the Security Algorithms...
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| x KeeLoq |
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KeeLoq is a proprietary hardware-dedicated NLFSR-based block cipher. The uni-directional command transfer protocol was designed by Frederick Bruwer PhD, CEO at Nanoteq (Pty) Ltd and the cryptographic algorithm was created by Professor Gideon Kuhn...
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| x KHAZAD |
In cryptography, KHAZAD (IPA: /xaˈzad/) is a block cipher designed by Paulo S. L. M. Barreto together with Vincent Rijmen, one of the designers of the Advanced Encryption Standard (Rijndael). KHAZAD is named after Khazad-dûm, the fictional dwarven...
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| x 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 ciphers were named after the Egyptian Pharaohs Khufu,...
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| x KN-Cipher |
In cryptography, KN-Cipher is a block cipher created by Kaisa Nyberg and Lars Knudsen in 1995. One of the first ciphers designed to be provably secure against ordinary differential cryptanalysis, KN-Cipher was later broken using higher order...
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| x 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 schedule, so the total key size is 4×56=224 bits.
In...
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| x Libelle |
Libelle is a German cipher system, developed by the Federal Office for Information Security. The algorithm is not publicised, in an attempt to make cryptanalysis more difficult. Some experts think this security through obscurity is a bad approach,...
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| x LOKI97 |
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128 | 128 | Feistel cipher |
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 was designed by Lawrie Brown, assisted...
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| 192 | |||||
| 256 | |||||
| x LOKI |
In cryptography, LOKI89 and LOKI91 are block ciphers designed as possible replacements for the Data Encryption Standard (DES). The ciphers were developed based on a body of work analysing DES, and are very similar to DES in structure. The LOKI...
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| x Lucifer | Feistel 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 Encryption Standard. One version, alternatively named DTD...
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| x M6 |
In cryptography, M6 is a block cipher proposed by Hitachi in 1997 for use in the IEEE 1394 FireWire standard. The design allows some freedom in choosing a few of the cipher's operations, so M6 is considered a family of ciphers.
The algorithm...
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| x M8 |
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-bit software implementations.
Like M6, M8 is a 10...
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| x MacGuffin |
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Feistel cipher |
In cryptography, MacGuffin is a block cipher created in 1994 by Bruce Schneier and Matt Blaze at a Fast Software Encryption workshop. It was intended as a catalyst for analysis of a new cipher structure, known as Generalized Unbalanced Feistel...
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| x Madryga |
In cryptography, Madryga is a block cipher created in 1984 by W. E. Madryga. It was designed to be easy and efficient for implementation in software. Serious weaknesses have since been found in the algorithm, but it was one of the first encryption...
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| x MAGENTA | 256 | 128 | Feistel cipher |
In cryptography, MAGENTA is a symmetric key block cipher developed by Michael Jacobson Jr. and Klaus Huber for Deutsche Telekom. The name MAGENTA is an acronym for Multifunctional Algorithm for General-purpose Encryption and Network...
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| 128 | |||||
| 192 | |||||
