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Serial killer in California in the 1960s
Zodiac confirmed that 0 "to be set to Mag. N." The letter concluded with a 32-character cipher (Z32): The Zodiac claimed that the map and the cipher would
Zodiac_Killer
Block cipher designed in 2000 by Chang-Hyi Lee
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
Zodiac_(cipher)
American serial killer suspects
Zodiac Ciphers, said in 2022 that "there are probably 50 or 100 suspects named every year". While many theories regarding the identity of the Zodiac have
Zodiac_Killer_suspects
Zodiac Killer suspect (1931–1992)
called "The Most Dangerous Game", which Zodiac referenced in his first solved cipher. Allen owned and wore a Zodiac Watch, a brand that uses a logo similar
Arthur_Leigh_Allen
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
Topics referred to by the same term
or "the Zodiac", American retired professional wrestler Tapwave Zodiac, a palmtop computer Zodiac (cipher), a Korean encryption algorithm Zodiac: Orcanon
Zodiac_(disambiguation)
Mock conspiracy theory
December 2020, after the 340-character Zodiac cipher was cracked, Cruz retweeted an article about the cipher with the caption "uh oh". After the edited
Ted_Cruz–Zodiac_Killer_meme
2007 film by David Fincher
Zodiac is a 2007 American crime thriller film directed by David Fincher and written by James Vanderbilt, based on the nonfiction books by Robert Graysmith:
Zodiac_(film)
Method of encryption
In cryptography, a transposition cipher (also known as a permutation cipher) is a method of encryption which scrambles the positions of characters (transposition)
Transposition_cipher
Disused cipher that was used historically
In cryptography, a classical cipher is a type of cipher that was used historically but, for the most part, has fallen into disuse. In contrast to modern
Classical_cipher
Encrypted information
Ossifrage The cryptogram in "The Gold-Bug" Beale ciphers Kryptos Zodiac Killer ciphers Bibliography of cryptography Cryptographic hash function Frequency
Ciphertext
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
Serial killer in Italy active from 1968 to 1985
Zodiac's 408-cipher last mystery". Ostello Volante. Retrieved 31 March 2025. Amicone, Francesco (26 July 2024). "Joe Bevilacqua. Decryption of Zodiac Killer's
Monster_of_Florence
Standard for the encryption of electronic data
Standards and Technology (NIST) in 2001. AES is a variant of the Rijndael block cipher developed by two Belgian cryptographers, Joan Daemen and Vincent Rijmen
Advanced_Encryption_Standard
2017 book by Craig P. Bauer
comprehensive overview of the Zodiac Killer's history, modus operandi, and unsolved ciphers. Chapter 5, titled "More Killer Ciphers", focuses on the Henry Debosnys
Unsolved!
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
Puzzle
2014 "The obsessive amateur code-breakers hoping to crack the Zodiac killer's cipher". kernelmag.dailydot.com. Archived from the original on 2017-09-28
Cryptogram
American heavy metal band
Kirkpatrick, effectively ending the band. A two-minute demo sample of The 408 Zodiac Cipher, a song meant for the upcoming album, that Kirkpatrick had released
Tourniquet_(band)
2005 film by Alex Bulkley
The Zodiac is a 2005 American crime horror drama film based on the true events associated with the Zodiac: a serial killer who was active in and around
The_Zodiac_(film)
Chinese block cipher
ShāngMì 4 (SM4, 商密4) (formerly SMS4) is a block cipher, standardised for commercial cryptography in China. It is used in the Chinese National Standard
SM4_(cipher)
Block cipher
Blowfish is a symmetric-key block cipher, designed in 1993 by Bruce Schneier and included in many cipher suites and encryption products. Blowfish provides
Blowfish_(cipher)
Type of cipher
cryptography, a block cipher is a deterministic algorithm that operates on fixed-length groups of bits, called blocks. Block ciphers are the elementary building
Block_cipher
Early unclassified symmetric-key block cipher
design elements, a relatively short key length of the symmetric-key block cipher design, and the involvement of the NSA, raising suspicions about a backdoor
Data_Encryption_Standard
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
via YouTube. "Scorpion Ciphers". Cipher Mysteries. Retrieved 2024-07-04. Elonka Dunin's list of famous unsolved codes and ciphers Noita's Eye Messages
List_of_ciphertexts
Block cipher
Algorithm (TDEA or Triple DEA), is a symmetric-key block cipher, which applies the DES cipher algorithm three times to each data block. The 56-bit key
Triple_DES
Block cipher
Threefish is a symmetric-key tweakable block cipher designed as part of the Skein hash function, an entry in the NIST hash function competition. Threefish
Threefish
2020 video game
a cipher somewhere in the scene to return to Landau's office. Robert Hartnell is an investigative journalist who has become enamored with the Zodiac case
This_Is_the_Zodiac_Speaking
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
Cryptography construction
cryptography, a Feistel cipher (also known as Luby–Rackoff block cipher) is a symmetric structure used in the construction of block ciphers, named after the
Feistel_cipher
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
Authenticated encryption mode for block ciphers
Mode (GCM) is a mode of operation for symmetric-key cryptographic block ciphers. The proposal was first published in 2007. The GCM algorithm belongs to
Galois/Counter_Mode
Block cipher
SEED is a block cipher developed by the Korea Information Security Agency (KISA). It is used broadly throughout South Korean industry, but seldom found
SEED
Form of cryptanalysis
block ciphers based on differential cryptanalysis. The attack was published in 1999 by David Wagner, who used it to break the COCONUT98 cipher. The boomerang
Boomerang_attack
Hill figure in Oxfordshire, England
Castleden says the Whiteleaf Cross may have originated as a "magical or zodiacal cipher and later redesigned in the Christian era to make it into a cross"
Watlington_White_Mark
Length of bit string processed by a cipher
modern cryptography, symmetric key ciphers are generally divided into stream ciphers and block ciphers. Block ciphers operate on a fixed length string of
Block_size_(cryptography)
Family of authenticated ciphers
Ascon is a family of lightweight authenticated ciphers and hash functions that have been selected by the U.S. National Institute of Standards and Technology
Ascon_(cipher)
Attacks against common ciphers
This article summarizes publicly known attacks against block ciphers and stream ciphers. Note that there are perhaps attacks that are not publicly known
Cipher_security_summary
Unsolved encrypted message associated with unsolved homicide
McCormick Notes The FBI has had so many responses with suggestions for the cipher that they later requested helpers to not call by phone nor use email. An
Ricky McCormick's encrypted notes
Ricky_McCormick's_encrypted_notes
Adding data to a message prior to encryption to hide its length
report, Sincerely yours, etc. The primary use of padding with classical ciphers is to prevent the cryptanalyst from using that predictability to find known
Padding_(cryptography)
Soviet/Russian national standard block cipher
GOST block cipher (Magma), defined in the standard GOST 28147-89, is a Soviet and Russian government standard symmetric key block cipher with a block
GOST_(block_cipher)
Block 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
Hasty_Pudding_cipher
Block cipher
(Russian for 'Grasshopper'; Cyrillic script: Кузнечик) is a symmetric block cipher. It has a block size of 128 bits and key length of 256 bits. It is defined
Kuznyechik
Daily newspaper in Vallejo, California, USA
Record Searchlight. Redding, California. Associated Press. January 13, 1999. p. 18. "Vallejo Times Letter". ZODIAC CIPHERS. Retrieved October 17, 2020.
Vallejo_Times_Herald
Family of block ciphers
Speck is part of a family of lightweight block ciphers publicly released by the National Security Agency (NSA) in June 2013. Speck has been optimized
Speck_(cipher)
Block cipher
In cryptography, the Tiny Encryption Algorithm (TEA) is a block cipher notable for its simplicity of description and implementation, typically a few lines
Tiny_Encryption_Algorithm
Wide-block cipher
Adiantum is a cipher composition for disk encryption. It uses a new cipher construction called HBSH (hash, block cipher, stream cipher, hash), specifically
Adiantum_(cipher)
Authenticated encryption mode of operation for block ciphers
an authenticated encryption mode of operation for cryptographic block ciphers. OCB mode was designed by Phillip Rogaway, who credits Mihir Bellare, John
OCB_mode
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
Block cipher
In cryptography, RC6 is a symmetric key block cipher derived from RC5. It was designed by Ron Rivest, Matt Robshaw, Ray Sidney, and Yiqun Lisa Yin to meet
RC6
Block cipher
except that it is a block cipher with a 64-bit block size and 64-bit key length. According to the academic study of the cipher cited below and quoted in
Red_Pike_(cipher)
Form of cryptanalysis
affine approximations to the action of a cipher. Attacks have been developed for block ciphers and stream ciphers. Linear cryptanalysis is one of the two
Linear_cryptanalysis
Block cipher
Kalyna (Ukrainian: Калина, Viburnum opulus) is a symmetric block cipher. It supports block sizes of 128, 256 or 512 bits; the key length is either equal
Kalyna_(cipher)
Block cipher
MARS is a block cipher that was IBM's submission to the Advanced Encryption Standard process. MARS was selected as an AES finalist in August 1999, after
MARS_(cipher)
Exploitation of impossible differences in block ciphers
been applied to many other ciphers: Khufu and Khafre, E2, variants of Serpent, MARS, Twofish, Rijndael (AES), CRYPTON, Zodiac, Hierocrypt-3, TEA, XTEA,
Impossible differential cryptanalysis
Impossible_differential_cryptanalysis
Classified National Security Agency Type 1 encryption algorithm
Mode (also known as Key-Auto-KEY or KAK) and Autoclave Mode (also known as Cipher-Text Auto Key or CTAK). On the AIM microchip, it runs at 4% of the clock
SAVILLE
Concept in cryptography
is the desirable property of cryptographic algorithms, typically block ciphers and cryptographic hash functions, wherein if an input is changed slightly
Avalanche_effect
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
Block cipher
block cipher designed by Ron Rivest in 1987. "RC" stands for "Ron's Code" (see also RC2, RC5 and RC6), but generally called simply RC2. Other ciphers designed
RC2
Block 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
BEAR_and_LION_ciphers
General form of cryptanalysis applicable primarily to block ciphers
general form of cryptanalysis applicable primarily to block ciphers, but also to stream ciphers and cryptographic hash functions. In the broadest sense,
Differential_cryptanalysis
Republic of Korea national standard block cipher
Lightweight Encryption Algorithm (also known as LEA) is a 128-bit block cipher developed by South Korea in 2013 to provide confidentiality in high-speed
LEA_(cipher)
Block cipher
In cryptography, MESH is a block cipher designed in 2002 by Jorge Nakahara, Jr., Vincent Rijmen, Bart Preneel, and Joos Vandewalle. MESH is based directly
MESH_(cipher)
Block cipher invented by Joan Daemen and Vincent Rijmen
In cryptography, Square (sometimes written SQUARE) is a block cipher invented by Joan Daemen and Vincent Rijmen. The design, published in 1997, is a forerunner
Square_(cipher)
Topics referred to by the same term
streaming service Rabbit r1, a personal assistant device Rabbit (cipher), a high-speed stream cipher Rabbit program, a type of malware RabbitMQ, an open source
Rabbit_(disambiguation)
Block 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
MacGuffin_(cipher)
Block 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
MAGENTA
Symmetric-key block cipher
Improved Proposed Encryption Standard (IPES), is a symmetric-key block cipher designed by James Massey of ETH Zurich and Xuejia Lai and was first described
International Data Encryption Algorithm
International_Data_Encryption_Algorithm
Cryptographic algorithm
cryptography, ciphertext stealing (CTS) is a general method of using a block cipher mode of operation that allows for processing of messages that are not evenly
Ciphertext_stealing
Block cipher
Prince is a block cipher targeting low latency, unrolled hardware implementations. It is based on the so-called FX construction. Its most notable feature
Prince_(cipher)
Block cipher
Anubis is a block cipher designed by Vincent Rijmen and Paulo S. L. M. Barreto as an entrant in the NESSIE project, a former research program initiated
Anubis_(cipher)
Authenticated encryption mode for block ciphers
(encrypt-then-authenticate-then-translate) is a mode of operation for cryptographic block ciphers. It is an Authenticated Encryption with Associated Data (AEAD) algorithm
EAX_mode
Block cipher
In cryptography, Skipjack is a block cipher — an algorithm for encryption — developed by the United States National Security Agency (NSA). Initially a
Skipjack_(cipher)
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
Block 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
KN-Cipher
Feistel network based block cipher
In cryptography, Camellia is a symmetric key block cipher with a block size of 128 bits and key sizes of 128, 192 and 256 bits. It was jointly developed
Camellia_(cipher)
Family of block ciphers
(Secure and Fast Encryption Routine) is the name of a family of block ciphers designed primarily by James Massey (one of the designers of IDEA) on behalf
Secure and Fast Encryption Routine
Secure_and_Fast_Encryption_Routine
Block cypher operating mode
The xor–encrypt–xor (XEX) is a (tweakable) mode of operation of a block cipher. In tweaked-codebook mode with ciphertext stealing (XTS mode), it is one
Xor–encrypt–xor
Block cipher
In cryptography, RC5 is a symmetric-key block cipher notable for its simplicity. Designed by Ronald Rivest in 1994, According to Ron Rivest, RC stands
RC5
Block cipher
CLEFIA is a proprietary block cipher algorithm, developed by Sony. Its name is derived from the French word clef, meaning "key". The block size is 128-bits
CLEFIA
Cipher design construction
network (SPN), is a series of linked mathematical operations used in block cipher algorithms such as AES (Rijndael), 3-Way, Kalyna, Kuznyechik, PRESENT, SAFER
Substitution–permutation network
Substitution–permutation_network
Japanese cryptography research project
CRYPTREC included certain 64-bit block ciphers in its recommended list, while NESSIE did not select any 64-bit block ciphers in its final portfolio. Similarly
CRYPTREC
Block cipher
In cryptography, DFC (Decorrelated Fast Cipher) is a symmetric block cipher which was created in 1998 by a group of researchers from École Normale Supérieure
DFC_(cipher)
Cryptographic attack
other one or two. This type of attack is very difficult, so most of the ciphers and encryption schemes in use were not designed to resist it.[citation
Time/memory/data tradeoff attack
Time/memory/data_tradeoff_attack
Block cipher
In cryptography, ARIA is a block cipher designed in 2003 by a large group of South Korean researchers. In 2004, the Korean Agency for Technology and Standards
ARIA_(cipher)
Block 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
FEAL
Block cipher
In cryptography, SHARK is a block cipher identified as one of the predecessors of Rijndael (the Advanced Encryption Standard). SHARK has a 64-bit block
SHARK
Cryptographic algorithm
PRESENT is a lightweight block cipher, developed by Orange Labs (France), Ruhr University Bochum (Germany) and the Technical University of Denmark in 2007
PRESENT
Block cipher
cryptography, XTEA (eXtended TEA) is a block cipher designed to correct weaknesses in TEA. The cipher's designers were David Wheeler and Roger Needham
XTEA
Authenticated encryption mode for block ciphers
(counter with cipher block chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers. It is an authenticated
CCM_mode
Tarot card of the Major Arcana
eleventh with Libra. This switch was originally suggested in the mysterious Cipher Manuscripts which formed the basis for the Golden Dawn's teachings regarding
Justice_(tarot_card)
Block cipher
cryptography, Corrected Block TEA (often referred to as XXTEA) is a block cipher designed to correct weaknesses in the original Block TEA. XXTEA is vulnerable
XXTEA
Basic component of symmetric key algorithms
component of symmetric key algorithms which performs substitution. In block ciphers, they are typically used to obscure the relationship between the key and
S-box
Block cipher
In cryptography, NewDES is a symmetric key block cipher. It was created in 1984–1985 by Robert Scott as a potential DES replacement. Despite its name,
NewDES
Block cipher
In cryptography, CIPHERUNICORN-E is a block cipher created by NEC in 1998. It was among the cryptographic techniques recommended for Japanese government
CIPHERUNICORN-E
Block cipher
In cryptography, CAST-256 (or CAST6) is a symmetric-key block cipher published in June 1998. It was submitted as a candidate for the Advanced Encryption
CAST-256
Block cipher
KeeLoq is a proprietary hardware-dedicated block cipher that uses a non-linear feedback shift register (NLFSR). The uni-directional command transfer protocol
KeeLoq
American domestic terrorist (1942–2023)
the Zodiac Killer differed from Kaczynski's bombings, authorities did not pursue him as a suspect. Robert Graysmith, author of the 1986 book Zodiac, said
Ted_Kaczynski
Block cipher
Serpent is a symmetric key block cipher that was a finalist in the Advanced Encryption Standard (AES) contest, in which it ranked second to Rijndael. Serpent
Serpent_(cipher)
Block cipher
3-Way is a block cipher designed in 1994 by Joan Daemen. It is closely related to BaseKing; the two are variants of the same general cipher technique. 3-Way
3-Way
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