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Stream cipher
The FISH (FIbonacci SHrinking) stream cipher is a fast software based stream cipher using Lagged Fibonacci generators, plus a concept from the shrinking
FISH_(cipher)
Allied codename for Nazi German teleprinter stream ciphers
Fish (sometimes capitalised as FISH) was the UK's GC&CS Bletchley Park codename for any of several German teleprinter stream ciphers used during World
Fish_(cryptography)
Topics referred to by the same term
W240CX, "95.9 The Fish", Columbus, Ohio WAIA (FM), "The Fish 104.7", Athens, Georgia WKLV-FM, "95.5 The Fish", Cleveland, Ohio FISH (cipher) (FIbonacci SHrinking)
Fish_(disambiguation)
Type of symmetric key cipher
stream cipher is a symmetric key cipher where plaintext digits are combined with a pseudorandom cipher digit stream (keystream). In a stream cipher, each
Stream_cipher
Military code use and breaking during the Second World War
Hans-Thilo Schmidt Enigma machine Fish (cryptography) British codename for German teleprinter ciphers Lorenz cipher a Fish cipher codenamed Tunny by the British
World_War_II_cryptography
Cipher machines used by the German Army during World War II
The Lorenz SZ40, SZ42a and SZ42b were German rotor stream cipher machines used by the German Army during World War II. They were developed by C. Lorenz
Lorenz_cipher
Cryptography algorithm
In cryptography, a block cipher mode of operation is an algorithm that uses a block cipher to provide information security such as confidentiality or
Block cipher mode of operation
Block_cipher_mode_of_operation
Stream cipher
(also known as ARC4 or ARCFOUR, meaning Alleged RC4, see below) is a stream cipher. While it is remarkable for its simplicity and speed in software, multiple
RC4
Encryption algorithm
In cryptography, the simple XOR cipher is a type of additive cipher, an encryption algorithm that operates according to the principles: A ⊕ {\displaystyle
XOR_cipher
British accountant and administrator
supervised a section named the Testery for breaking Tunny (a Fish cipher). The Lorenz cipher machine had twelve wheels, and was thus most advanced, complex
Ralph_Tester
English musician (born 1967)
artists, including OSI, JBK, Orphaned Land, Paatos, Theo Travis, Yoko Ono, Fish, Cipher and Anja Garbarek, by writing songs as well as performing musically.
Steven_Wilson
Practice and study of secure communication techniques
(or "E") for the eavesdropping adversary. Since the development of rotor cipher machines in World War I and the advent of computers in World War II, cryptography
Cryptography
Block 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
Twofish
Cryptography, the use of codes and ciphers, began thousands of years ago. Until recent decades, it has been the story of what might be called classical
History_of_cryptography
Algorithm
use either stream ciphers or block ciphers. Stream ciphers encrypt the digits (typically bytes), or letters (in substitution ciphers) of a message one
Symmetric-key_algorithm
Serial killer in California in the 1960s
different cryptogram. They combined to form a 408-symbol cipher (Z408). The writer claimed, "In this cipher is my idenity. [sic]" He demanded the codes be printed
Zodiac_Killer
Stream cipher
The Pike stream cipher was invented by Ross Anderson to be a "leaner and meaner" version of FISH after he broke FISH in 1994. Its name is supposed to be
Pike_(cipher)
Pseudorandom number generator
congruential generator ACORN generator Mersenne Twister Xoroshiro128+ FISH (cipher) Pike VIC cipher Toward a universal random number generator, G.Marsaglia, A.Zaman
Lagged_Fibonacci_generator
British computer scientist (1956–2024)
block cipher Serpent, one of the finalists in the Advanced Encryption Standard (AES) competition. He also discovered weaknesses in the FISH cipher and designed
Ross_J._Anderson
World War II German cipher machine and teleprinter
cipher machines in the German Army. The British cryptanalysts of Bletchley Park codenamed the German teleprinter ciphers Fish, with individual cipher-systems
Siemens_and_Halske_T52
Stream ciphers
and the closely related ChaCha are stream ciphers developed by Daniel J. Bernstein. Salsa20, the original cipher, was designed in 2005, then later submitted
Salsa20
American animated television series
Jesus "Soos" Ramirez, the 22-year-old handyman at the Mystery Shack. Bill Cipher, an interdimensional demon that can be summoned and released into a person's
Gravity_Falls
Authenticated encryption with associated data algorithm
with associated data (AEAD) algorithm, that combines the ChaCha20 stream cipher with the Poly1305 message authentication code. It has fast software performance
ChaCha20-Poly1305
Decryption of the cipher of the Enigma machine
Cryptanalysis of the Enigma ciphering system enabled the western Allies in World War II to read substantial amounts of Morse-coded radio communications
Cryptanalysis_of_the_Enigma
Process of converting plaintext to ciphertext
key sizes, such as AES (256-bit mode), TwoFish, ChaCha20-Poly1305, Serpent (configurable up to 512-bit). Cipher suites that use a 128-bit or higher key
Encryption
British statistician and cryptographer (1916–2009)
Subsequently, he worked with Donald Michie in Max Newman's group on the Fish ciphers, leading to the development of the Colossus computer. Good was a member
I._J._Good
Input to a cryptographic primitive
between (potentially similar) segments of the encrypted message. For block ciphers, the use of an IV is described by the modes of operation. Some cryptographic
Initialization_vector
American cryptographer (1890–1960)
additive polyalphabetic stream cipher and later co-invented an automated one-time pad cipher. Vernam proposed a teleprinter cipher in which a previously prepared
Gilbert_Vernam
Study of analyzing information systems in order to discover their hidden aspects
the breaking of Japan's secret ciphers, London, England: Random House, ISBN 0-593-04641-2 Tutte, W. T. (19 June 1998), Fish and I (PDF), archived from the
Cryptanalysis
Stream cipher
Trivium is a synchronous stream cipher designed to provide a flexible trade-off between speed and gate count in hardware, and reasonably efficient software
Trivium_(cipher)
Numerological practice of reading a word or phrase as a number
alphanumeric cipher. The letters of the alphabets involved have standard numerical values, but a word can yield several values if a cipher is used. According
Gematria
Aspect of WWII Allied intelligence gathering
Cryptanalysis of the Lorenz cipher was the process that enabled the British to read high-level German army messages during World War II. The British Government
Cryptanalysis of the Lorenz cipher
Cryptanalysis_of_the_Lorenz_cipher
Turing is a stream cipher developed by Gregory G. Rose and Philip Hawkes at Qualcomm for CDMA. Turing generates 160 bits of output in each round by applying
Turing_(cipher)
Stream cipher
Rabbit is a high-speed stream cipher from 2003. The algorithm and source code was released in 2008 as public domain software. Rabbit was first presented
Rabbit_(cipher)
Caesar cipher ROT13 Affine cipher Atbash cipher Keyword cipher Polyalphabetic substitution Vigenère cipher Autokey cipher Homophonic substitution cipher Polygraphic
Outline_of_cryptography
15th-century codex in an unknown script
script for a natural language or constructed language, an unreadable code, cipher, or other form of cryptography, or perhaps a hoax, reference work (i.e.
Voynich_manuscript
Stream cipher
A5/1 is a stream cipher used to provide over-the-air communication privacy in the GSM cellular telephone standard. It is one of several implementations
A5/1
Methods to break a stream cipher
Stream ciphers, where plaintext bits are combined with a cipher bit stream by an exclusive-or operation (xor), can be secure if used properly.[citation
Stream_cipher_attacks
Stream cipher
cryptography, SEAL (Software-Optimized Encryption Algorithm) is a stream cipher optimised for machines with a 32-bit word size and plenty of RAM with a
SEAL_(cipher)
Vladimir; Bogdanov, Andrey; Andrey, Ilya. "ABC: A New Fast Flexible Stream Cipher" (PDF). European Network of Excellence in Cryptology II. Archived from the
ABC_(stream_cipher)
Block cipher
In cryptography, BassOmatic is the symmetric-key cipher designed by Phil Zimmermann as part of his email encryption software PGP (in the first release
BassOmatic
Stream cipher
Crypto1 is a proprietary encryption algorithm (stream cipher) and authentication protocol created by NXP Semiconductors for its MIFARE Classic RFID contactless
Crypto-1
to kill Cipher for this. Cipher later puppeteers Polarity to get the location of Marie out of him and sends Vikor to go after Marie. Cipher reveals his
List_of_The_Boys_characters
cryptography include: A5/1 • A5/2 • ABA digital signature guidelines • ABC (stream cipher) • Abraham Sinkov • Acoustic cryptanalysis • Adaptive chosen-ciphertext
Index of cryptography articles
Index_of_cryptography_articles
American animator (born 1985)
Gravity Falls, and voiced its characters Grunkle Stan, Soos Ramirez, and Bill Cipher, among others. The show has won several BAFTA and Annie Awards. In 2016
Alex_Hirsch
Project to identify new stream ciphers for widespread adoption
stream ciphers suitable for widespread adoption", organised by the EU ECRYPT network. It was set up as a result of the failure of all six stream ciphers submitted
ESTREAM
Concept in cryptography
is a block mode that makes a block cipher produce a keystream and thus turns the block cipher into a stream cipher. In this simple example we use the
Keystream
Class of electromechanical encryption devices, used widely from the 1920s to the 1970s
In cryptography, a rotor machine is an electro-mechanical stream cipher device used for encrypting and decrypting messages. Rotor machines were the cryptographic
Rotor_machine
Cryptographic number generator
is a cryptographically secure pseudorandom number generator and a stream cipher designed by Robert J. Jenkins Jr. in 1993. The reference implementation
ISAAC_(cipher)
Early British cryptanalysis computer
codebreakers in the years 1943–1945 to help in the cryptanalysis of the Lorenz cipher. Colossus used thermionic valves (vacuum tubes) to perform Boolean and counting
Colossus_computer
Stream cipher algorithm
network. Nawaz, Yassir; Gong, Guang (2008-04-01). "WG: A family of stream ciphers with designed randomness properties". Information Sciences. 178 (7): 1903–1916
WG_(cipher)
WWII code-breaking site
communications of the Axis powers – most importantly the German Enigma and Lorenz ciphers. The GC&CS team of codebreakers included John Tiltman, Dilwyn Knox, Alan
Bletchley_Park
Main antagonist organization of One Piece
pirates. The Government also includes other military forces such as the ten Cipher Pol intelligence agencies. Two years after the story begins, the Seven Warlords
World_Government_(One_Piece)
Cipher algorithm
Dragon is a stream cipher developed at the Information Security Institute by William Millan with some help from Ed Dawson, Kevin Chen, Matt Henricksen
Dragon_(cipher)
British-Canadian codebreaker and mathematician (1917–2002)
made a fundamental advance in cryptanalysis of the Lorenz cipher, a major Nazi German cipher system which was used for top-secret communications within
W._T._Tutte
Stream cipher
A5/2 is a stream cipher used to provide voice privacy in the GSM cellular telephone protocol. It was designed in 1992-1993 (finished March 1993) as a replacement
A5/2
Algorithms to produce pseudo-random numbers
reduced-strength versions of block ciphers. Threefry uses a reduced-strength version of the Threefish block cipher. (Juvenile fish are known as "fry".) ARS uses
Counter-based random number generator
Counter-based_random_number_generator
British codebreaking device of WW2
machine. Both the cipher and the machines were called "Tunny" by the codebreakers, who named different German teleprinter ciphers after fish. It was mainly
Heath Robinson (codebreaking machine)
Heath_Robinson_(codebreaking_machine)
Stream cipher
Permutation Composition) for cryptography is a stream cipher similar to the well known and popular cipher RC4 designed by Ron Rivest. It was designed by Bartosz
Variably Modified Permutation Composition
Variably_Modified_Permutation_Composition
Stream cipher
Py is a stream cipher submitted to eSTREAM by Eli Biham and Jennifer Seberry. It is one of the fastest eSTREAM candidates at around 2.6 cycles per byte
Py_(cipher)
Family of stream ciphers
SNOW is a family of word-based synchronous stream ciphers developed by Thomas Johansson and Patrik Ekdahl at Lund University. They have a 512-bit linear
SNOW
Stream cipher
Phelix is a high-speed stream cipher with a built-in single-pass message authentication code (MAC) functionality, submitted in 2004 to the eSTREAM contest
Phelix
Cryptography primitive
cryptographic primitive which can be used both as a hash function and a stream cipher, but its hash function mode of operation has been broken and is not suitable
Panama_(cryptography)
Stream cipher
The Scream cipher is a word-based stream cipher developed by Shai Halevi, Don Coppersmith and Charanjit Jutla from IBM. The cipher is designed as a software
Scream_(cipher)
British designation for intelligence from decrypted enemy communications
introduce on-line stream cipher teleprinter systems for strategic point-to-point radio links, to which the British gave the code-name Fish. Several systems were
Ultra_(cryptography)
Family of stream ciphers
Enabled Register. Initially the cipher was intended as a replacement for broken ciphers in cellular telephony. The ciphers evolved, and other developers
SOBER
Stream cipher
LEVIATHAN is a stream cipher submitted to NESSIE by Scott Fluhrer and David McGrew. It is a seekable stream cipher, which means that the user may efficiently
LEVIATHAN_(cipher)
Stream cipher algorithm
Thierry (20 April 2005). The Frogbit cipher, a data integrity algorithm (PDF) (Report). eSTREAM, ECRYPT Stream Cipher Project. Retrieved 2026-05-21. v t
Frogbit_(cipher)
Topics referred to by the same term
species of fish in the family Tetraodontidae. Blowfish may also refer to: Porcupinefish, belonging to the family Diodontidae Blowfish (cipher), an encryption
Blowfish_(disambiguation)
Ability to easily switch cryptographic primitives
Langley, Adam. "Cryptographic Agility". Retrieved 2025-02-07. "OpenSSL 3.4 Cipher Suite Names". Retrieved 2025-02-07. McLean, Tim. "Critical vulnerabilities
Cryptographic_agility
Topics referred to by the same term
the kick (b-boy move) Pike, a type of cheerleading jump Pike (cipher), a stream cipher invented by Ross Anderson Pike (programming language), a programming
Pike
Stream cipher
HC-256 is a stream cipher designed to provide bulk encryption in software at high speeds while permitting strong confidence in its security. A 128-bit
HC-256
21st episode of the 10th season of Hawaii Five-0
only a cipher, confiding in Danny how much things have changed in the ten-years since his father died, that he doesn't plan on solving the cipher because
A ʻohe ia e loaʻa aku, he ulua kapapa no ka moana
A_ʻohe_ia_e_loaʻa_aku,_he_ulua_kapapa_no_ka_moana
Stream cipher algorithm
In cryptography, NLS is a stream cipher algorithm designed by Gregory Rose, Philip Hawkes, Michael Paddon, and Miriam Wiggers de Vries. It has been submitted
NLS_(cipher)
English cryptanalyst (1917–1996)
contributions to the team. In 1941, trawlers were captured as well as their cipher equipment and codes. Before this information was obtained, wolf packs had
Joan_Clarke
Protagonists of media franchise One Piece
the workers of Galley-La. Members of the secret government organization, Cipher Pol 9, they joined Galley-La to gain Pluton for the government's use. After
Straw_Hats
Stream cipher
In cryptography, CryptMT is a stream cipher algorithm which internally uses the Mersenne twister. It was developed by Makoto Matsumoto, Mariko Hagita,
CryptMT
LEX is a stream cipher based on the round transformation of AES. LEX provides the same key agility and short message block performance as AES while handling
LEX_(cipher)
Stream cipher
SOBER-128 is a synchronous stream cipher designed by Hawkes and Rose (2003) and is a member of the SOBER family of ciphers. SOBER-128 was also designed to
SOBER-128
Type of cryptographic attack
form of cryptanalysis where the attacker can observe the operation of a cipher under several different keys whose values are initially unknown, but where
Related-key_attack
Key that is easy to break with a specific cipher
cryptography, a weak key is a key, which, used with a specific cipher, makes the cipher behave in some undesirable way. Weak keys usually represent a very
Weak_key
American-German literary historian and anti-Nazi resistance operative (1902–1943)
Mildred Elizabeth Harnack (née Fish; September 16, 1902 – February 16, 1943) was an American literary historian, translator, and member of the German resistance
Mildred_Harnack
British cipher machine
Typex (also spelled Type X or TypeX) was the primary cipher machine used by the British military during World War II by and into the early Cold War. Based
Typex
Cryptographic attack
are a class of cryptographic known-plaintext attacks for breaking stream ciphers whose keystreams are generated by combining the output of several linear-feedback
Correlation_attack
Cipher of the Lontara script
other symbols instead of Lontara characters. Lontara Bilang-bilang is a cipher of the Lontara script, currently used for Buginese poetry. This script uses
Lontara_Bilang-bilang
Stream cipher
cellular communications in order to protect data traffic. It is a stream cipher designed to have a very strong 96-bit key strength with a way to reduce
ORYX
Allied project during WWII
serendipitous discovery of a waterproof box containing some of the archives of the Cipher Department of the High Command of the Wehrmacht (OKW/Chi) on the bed of
TICOM
Stream cypher algorithm
Rabbit Salsa20 SOSEMANUK Hardware Grain MICKEY Trivium Other ciphers Achterbahn F-FCSR FISH ISAAC KCipher-2 MUGI ORYX Panama Phelix Pike Py QUAD RC4+ RC4A
SSS_(cipher)
Stream cipher
KEYstream generator (MICKEY) is a stream cipher algorithm developed by Steve Babbage and Matthew Dodd. The cipher is designed to be used in hardware platforms
MICKEY
Stream cipher
The Grain 128a stream cipher was first purposed at Symmetric Key Encryption Workshop (SKEW) in 2011 as an improvement of the predecessor Grain 128, which
Grain_128a
Stream cipher
synchronous stream cipher algorithm submitted to the eSTREAM Project of the eCRYPT network. In the final specification the cipher is called ACHTERBAHN-128/80
Achterbahn_(stream_cipher)
Archaeological artefacts
rows of images in the top segment of the longer horn have been taken as a cipher encoding a runic text of 22 letters, although there is no universally accepted
Golden_Horns_of_Gallehus
English computer scientist (1912–1954)
cryptanalysis. Turing devised techniques for speeding the breaking of German ciphers, including improvements to the pre-war Polish bomba method, an electromechanical
Alan_Turing
Video game series by id Software
Vorticons as a way to pass hidden messages to players. It is a substitution cipher to the Latin alphabet, including the letters A–Z, opening and closing quotation
Commander_Keen
Stream cipher algorithm
Rabbit Salsa20 SOSEMANUK Hardware Grain MICKEY Trivium Other ciphers Achterbahn F-FCSR FISH ISAAC KCipher-2 MUGI ORYX Panama Phelix Pike Py QUAD RC4+ RC4A
Polar_Bear_(cipher)
Stream cipher
In cryptography, the QUAD cipher is a stream cipher which was designed with provable security arguments in mind. QUAD relies on the iteration of a randomly
QUAD_(cipher)
Form of pseudorandom number generator
(ASG) is a cryptographic pseudorandom number generator used in stream ciphers, based on three linear-feedback shift registers. Its output is a combination
Alternating_step_generator
Stream cipher
Grain is a stream cipher submitted to eSTREAM in 2004 by Martin Hell, Thomas Johansson and Willi Meier. It has been selected for the final eSTREAM portfolio
Grain_(cipher)
Stream cipher
is a pseudorandom number generator (PRNG) designed for use as a stream cipher. It was among the cryptographic techniques recommended for Japanese government
MUGI
Encrypted sculpture by American artist Jim Sanborn
about the meaning of the four encrypted messages (most using a vigenere cipher with key word Kryptos) it bears. Of these four messages, the first three
Kryptos
FISH CIPHER
FISH CIPHER
Boy/Male
Scottish
From Fifeshire.
Boy/Male
Indian
A Learned Man
Boy/Male
Hindu
Brave & dominant ruler
Surname or Lastname
English
English : from Middle English fische, fish ‘fish’, a metonymic occupational name for a fisherman or fish seller, or a nickname for someone thought to resemble a fish.Americanized spelling of German and Jewish Fisch.
Surname or Lastname
English (East Anglia)
English (East Anglia) : metonymic occupational name for a fisherman or fish seller, or a nickname for someone supposedly resembling a fish in some way, from Old Norse fiskr ‘fish’ (cognate with Old English fisc).
Girl/Female
Gujarati, Hindu, Indian
Poison; Earth
Boy/Male
Hindu
Poison
Boy/Male
Indian
God
Surname or Lastname
English and Scottish
English and Scottish : unexplained. Probably a shortened form of northern Irish and Scottish McLeish.
Boy/Male
Biblical
Hard, difficult, straw, for age.
Boy/Male
Hindu, Indian
Winner; Victory
Boy/Male
Hindu
By the ash tree, An adventurer
Girl/Female
British, English
Direction
Girl/Female
Indian
Delight, Joy, Pleasure
Boy/Male
Australian, British, English, Scandinavian
Fisherman; Fish
Boy/Male
Arabic
Live; Enjoy Life; Happy
Surname or Lastname
English
English : topographic name for someone who lived by a water meadow or marsh, Middle English wyshe (Old English wisc).Americanized spelling of Wisch.
Boy/Male
Swedish English
Fisherman.
Boy/Male
Hindu, Indian, Sanskrit
Earth; Poison
Surname or Lastname
Americanized spelling of German Bisch.English
Americanized spelling of German Bisch.English : variant of Bush.
FISH CIPHER
FISH CIPHER
Boy/Male
English
Falconer; one who trains falcons. Game warden.
Boy/Male
Welsh
Battle leader. This name dates back to the 7th century. More commonly used as a surname than a...
Boy/Male
Hindu, Indian, Marathi
Holy Star
Girl/Female
Hindu
Sings with Raaga, God of Raghavendra
Girl/Female
Indian
Blessed
Girl/Female
Tamil
Shresta | à®·à¯à®°à¯‡à®¸à¯à®¤à®¾
The best, Ultimate, Another name for Vishnu, Foremost, First, Perfection, Best of all
Boy/Male
Arabic, Australian, Celtic, Dutch, Gaelic, Hebrew, Irish, Latin, Muslim
Great; Surname
Girl/Female
Muslim/Islamic
Bringer of good tidings Joy
Boy/Male
Hindu
Granter of boons
Boy/Male
Basque
Savior.
FISH CIPHER
FISH CIPHER
FISH CIPHER
FISH CIPHER
FISH CIPHER
a.
Consisting of fish; fishlike; having the qualities or taste of fish; abounding in fish.
n.
The food served in a dish; hence, any particular kind of food; as, a cold dish; a warm dish; a delicious dish. "A dish fit for the gods."
v. t.
To strengthen (a beam, mast, etc.), or unite end to end (two timbers, railroad rails, etc.) by bolting a plank, timber, or plate to the beam, mast, or timbers, lengthwise on one or both sides. See Fish joint, under Fish, n.
pl.
of Fish
v. t.
To try with a fishing rod; to catch fish in; as, to fish a stream.
n.
The flesh of fish, used as food.
v. t.
To catch; to draw out or up; as, to fish up an anchor.
a.
Like the of a fish; acting, or producing something, like the tail of a fish.
v. t.
To gripe with the fist.
v. i.
To attempt to catch fish; to be employed in taking fish, by any means, as by angling or drawing a net.
n.
A piece of timber, somewhat in the form of a fish, used to strengthen a mast or yard.
a.
Extravagant, like some stories about catching fish; improbable; also, rank or foul.
v. i.
To seek to obtain by artifice, or indirectly to seek to draw forth; as, to fish for compliments.
n.
A purchase used to fish the anchor.
n.
See Fish-tackle.