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Symmetric-key block cipher
In cryptography, the International Data Encryption Algorithm (IDEA), originally called Improved Proposed Encryption Standard (IPES), is a symmetric-key
International Data Encryption Algorithm
International_Data_Encryption_Algorithm
Early unclassified symmetric-key block cipher
The Data Encryption Standard (DES /ˌdiːˌiːˈɛs, dɛz/) is a symmetric-key algorithm for the encryption of digital data. Although its short key length of
Data_Encryption_Standard
Standard for the encryption of electronic data
supersedes the Data Encryption Standard (DES), which was published in 1977. The algorithm described by AES is a symmetric-key algorithm, meaning the same
Advanced_Encryption_Standard
Type of cipher
block cipher consists of two paired algorithms, one for encryption, E, and the other for decryption, D. Both algorithms accept two inputs: an input block
Block_cipher
Algorithm for public-key cryptography
data transmission. The initialism "RSA" comes from the surnames of Ron Rivest, Adi Shamir and Leonard Adleman, who publicly described the algorithm in
RSA_cryptosystem
Cryptographic key management algorithm
Double Ratchet Algorithm features properties that have been commonly available in end-to-end encryption systems for a long time: encryption of contents on
Double_Ratchet_Algorithm
Block cipher
under the name IDEA NXT. IDEA NXT is the successor to the International Data Encryption Algorithm (IDEA) and also uses the Lai–Massey scheme. MediaCrypt
IDEA_NXT
Sequence of operations for a task
perform a computation. Algorithms are used as specifications for performing calculations and data processing. More advanced algorithms can use conditionals
Algorithm
NSA certification system
vendor proprietary algorithms, algorithms registered by NIST, or algorithms registered by NIST and published in a FIPS. NSA encryption systems, for a historically
NSA_product_types
Electronics IDEA—International Data Encryption Algorithm IDF—Intermediate Data Format IDF—Intermediate Distribution Frame IDL—Interactive Data Language IDL—Interface
List of computing and IT abbreviations
List_of_computing_and_IT_abbreviations
Computation modulo a fixed integer
a variety of symmetric key algorithms including Advanced Encryption Standard (AES), International Data Encryption Algorithm (IDEA), and RC4. RSA and Diffie–Hellman
Modular_arithmetic
Topics referred to by the same term
in the mind. Idea or IDEA or similar may also refer to: International Data Encryption Algorithm, a block cipher IntelliJ IDEA, a development application
Idea_(disambiguation)
Cryptography secured against quantum computers
the difficulty of cracking the encryption algorithm. In other words, the security of a given cryptographic algorithm is reduced to the security of a
Post-quantum_cryptography
Process of encrypting message one or more times
Multiple encryption is the process of encrypting an already encrypted message one or more times, either using the same or a different algorithm. It is also
Multiple_encryption
Block cipher
OR (XOR)s. The general structure of the algorithm is a Feistel-like network, similar to RC2. The encryption and decryption routines can be specified
RC5
Algorithm for encrypting and decrypting information
In cryptography, a cipher (or cypher) is an algorithm for performing encryption or decryption—a series of well-defined steps that can be followed as a
Cipher
Beale ciphers The Codebreakers Data Encryption Standard Advanced Encryption Standard International Data Encryption Algorithm List of hash functions Comparison
List of cybersecurity information technologies
List_of_cybersecurity_information_technologies
ZIP (file format) algorithm to the base and update ENC files, before encryption. The other files are not compressed. "S-63 IHO Data Protection Scheme"
S-63_(encryption_standard)
Method in cryptography
characters and increasing the size of the data, data encrypted using the CBC mode of an encryption algorithm also changes its value when it is decrypted
Format-preserving_encryption
Secure network protocol suite
supports network-level peer authentication, data origin authentication, data integrity, data confidentiality (encryption), and protection from replay attacks
IPsec
Used for encoding or decoding ciphertext
strength of the encryption relies on the security of the key being maintained. A key's security strength is dependent on its algorithm, the size of the
Key_(cryptography)
Method of exchanging cryptographic keys
replay-attacks. ephemeral, static: For example, used in ElGamal encryption or Integrated Encryption Scheme (IES). If used in key agreement it could provide implicit
Diffie–Hellman_key_exchange
Serge Vaudenay of Swiss Institute of Technology Lausanne International Data Encryption Algorithm (IDEA) – 64-bit block;James Massey & X Lai of ETH Zurich
Outline_of_cryptography
Block cipher
In cryptography, the Cellular Message Encryption Algorithm (CMEA) is a block cipher which was used for securing mobile phones in the United States. CMEA
Cellular Message Encryption Algorithm
Cellular_Message_Encryption_Algorithm
International Data Encryption Algorithm (IDEA). Adi Shamir, Israel, Weizmann Institute, inventor of secret sharing. Walter Tuchman. US. led the Data Encryption
List_of_cryptographers
Family of archive file formats
filename storage. Expanded list of supported compression algorithms (LZMA, PPMd+), encryption algorithms (Blowfish, Twofish), and hashes. 6.3.1: (2007) Corrected
ZIP_(file_format)
Topics referred to by the same term
and Energy Data Encryption Algorithm, the block cipher algorithm defined in (and often referred to as) the Data Encryption Standard Data envelopment
DEA_(disambiguation)
Cryptography algorithm
and data integrity into a single cryptographic primitive (an encryption algorithm). These combined modes are referred to as authenticated encryption, AE
Block cipher mode of operation
Block_cipher_mode_of_operation
Authenticated encryption mode for block ciphers
was first published in 2007. The GCM algorithm belongs to the class of authenticated encryption with associated data (AEAD) methods. Given a key K {\displaystyle
Galois/Counter_Mode
Data encryption and authentication program
Pretty Good Privacy (PGP) is an encryption program that provides cryptographic privacy and authentication for data communication. PGP is used for signing
Pretty_Good_Privacy
Stream cipher
deterministic random bit generator (DRBG), an encryption algorithm that supports authenticated encryption with associated data (AEAD), etc. In 2016, Banik and Isobe
RC4
Surveillance strategy
developments in quantum computing which would allow current strong encryption algorithms to be broken at some time in the future, making it possible to decrypt
Harvest_now,_decrypt_later
“chaotic” encryption algorithm." Matthews, R.A.J. Cryptologia 13, no. 1 (1989): 29-42. "Supercomputer investigations of a chaotic encryption algorithm" DD Wheeler
Chaotic_cryptology
Hash function that is suitable for use in cryptography
version of the Advanced Encryption Standard (AES). Whirlpool produces a hash digest of 512 bits (64 bytes). SHA-2 (Secure Hash Algorithm 2) is a set of cryptographic
Cryptographic_hash_function
a timeline of the public releases or introductions of computer encryption algorithms. Horst Feistel. Block Cipher Cryptographic System, US Patent 3,798
Encryption_by_date
Chinese block cipher
fork with GuoMi algorithms) [1] (ISO/IEC 18033-3:2010/Amd 1:2021 Information technology — Security techniques — Encryption algorithms — Part 3: Block
SM4_(cipher)
Encryption technique
The one-time pad (OTP) is an encryption technique that cannot be cracked in cryptography. It requires the use of a single-use pre-shared key that is larger
One-time_pad
Topics referred to by the same term
choosing an algorithm for standardization as AES AES instruction set, an x86 microprocessor architecture addition improving Advanced Encryption Standard
AES
Simple encryption method
ROT26: equivalent to no encryption at all. 2ROT13 was included in a spoof academic paper entitled "On the 2ROT13 Encryption Algorithm". triple-ROT13: used
ROT13
Quantum-safe key encapsulation mechanism
messaging service Signal implemented PQXDH, a Kyber-based post-quantum encryption algorithm, to their Signal Protocol. OpenSSL wolfSSL libOQS libzupt IAIK-JCE
ML-KEM
Suite of cryptographic algorithms needed to implement a particular security service
a suite of cryptographic algorithms needed to implement a particular security service, such as confidentiality (encryption). Typically, a cryptosystem
Cryptosystem
System allowing searching of encrypted documents
Searchable symmetric encryption (SSE) is a form of encryption that allows efficient searching over a collection of encrypted documents or files without
Searchable symmetric encryption
Searchable_symmetric_encryption
Non-federated cryptographic protocol
Current Signal specifications model message encryption as authenticated encryption with associated data (AEAD), with recommended constructions including
Signal_Protocol
Type of public-key encryption
practical identity-based encryption algorithms Boneh–Franklin (BF-IBE). Sakai–Kasahara (SK-IBE). Boneh–Boyen (BB-IBE). All these algorithms have security proofs
Identity-based_encryption
) International Data Encryption Algorithm International Design Excellence Awards IDF (i) Israel Defense Forces Intel Development Forum International Dairy
List_of_acronyms:_I
Cryptography number with no hidden properties
reverse-engineered and proven to be generated algorithmically with some "puzzling" weaknesses. The Data Encryption Standard (DES) has constants that were given
Nothing-up-my-sleeve_number
Block cipher
1994). The MacGuffin Block Cipher Algorithm (PDF/PostScript). 2nd International Workshop on Fast Software Encryption (FSE '94). Leuven: Springer-Verlag
MacGuffin_(cipher)
Discrete, discontinuous representation of information
institutions. Data in use, or memory, can contain sensitive data including digital certificates, encryption keys, intellectual property (software algorithms, design
Digital_data
Software that uses cryptography
approach, software encryption may be classified into software which encrypts "data in transit" and software which encrypts "data at rest". Data in transit generally
Encryption_software
American cryptographer
a common programming interface for authenticated encryption with associated data (AEAD) algorithms and specifying AES-GCM and AES-CCM as concrete instances
David_A._McGrew
Repeated basic operation in a cryptosystem
inside the algorithm. Splitting a large algorithmic function into rounds simplifies both implementation and cryptanalysis. For example, encryption using an
Round_(cryptography)
American cryptographer (born 1947)
inventors of the RSA algorithm, for which they won the 2002 ACM Turing Award. He is also the inventor of the symmetric key encryption algorithms RC2, RC4, and
Ron_Rivest
This is a technical feature comparison of different disk encryption software. Hidden containers: Whether hidden containers (an encrypted container (A)
Comparison of disk encryption software
Comparison_of_disk_encryption_software
Property of some cryptosystems
three definitions of security. For a probabilistic asymmetric-key encryption algorithm, indistinguishability under chosen-plaintext attack (IND-CPA) is
Ciphertext indistinguishability
Ciphertext_indistinguishability
Cryptographic protocols for securing data in transit
confidentiality) because a symmetric-key algorithm is used to encrypt the data transmitted. The keys for this symmetric encryption are generated uniquely for each
Transport_Layer_Security
Data compression approach allowing perfect reconstruction of the original data
compression algorithm can shrink the size of all possible data: Some data will get longer by at least one symbol or bit. Compression algorithms are usually
Lossless_compression
Input to a cryptographic primitive
a serious concern and a subject of ongoing research. The 802.11 encryption algorithm called WEP (short for Wired Equivalent Privacy) used a short, 24-bit
Initialization_vector
Block cipher
Lisa Yin to meet the requirements of the Advanced Encryption Standard (AES) competition. The algorithm was one of the five finalists, and also was submitted
RC6
Practice and study of secure communication techniques
Secure symmetric algorithms include the commonly used AES (Advanced Encryption Standard) which replaced the older DES (Data Encryption Standard). Insecure
Cryptography
Cryptographic problem
if the encryption scheme is commutative, it will not matter who decrypts first. An algorithm for shuffling cards using commutative encryption would be
Mental_poker
Soviet/Russian national standard block cipher
Dolmatov, ed. (March 2010). GOST 28147-89: Encryption, Decryption, and Message Authentication Code (MAC) Algorithms. Independent Submission. doi:10.17487/RFC5830
GOST_(block_cipher)
Data breach protection
"Data at rest" refers to stored data. DLP techniques include access controls, encryption, and data retention policies.[page needed] Data encryption transforms
Data_loss_prevention_software
Belgian cryptographer (born 1965)
the development of AES and SHA3". He describes his development of encryption algorithms as creating the bricks which are needed to build the secure foundations
Joan_Daemen
Key size for symmetric encryption
a 56-bit Data Encryption Standard (DES) key in days, and would be able to break 40-bit DES encryption in about two seconds. 40-bit encryption was common
40-bit_encryption
Feistel network based block cipher
standardization organizations: CRYPTREC NESSIE IETF Algorithm RFC 3713 – "A Description of the Camellia Encryption Algorithm," Informational. Block cipher mode RFC 5528 – "Camellia
Camellia_(cipher)
pseudo-random encryption key generated by an algorithm. It is possible to decrypt the message without possessing the key, but, for a well-designed encryption scheme
Glossary_of_computer_science
Cipher design construction
functions. Feistel network Product cipher Square (cipher) International Data Encryption Algorithm Webster, A. F.; Tavares, Stafford E. (1985). "On the design
Substitution–permutation network
Substitution–permutation_network
Concept in data security
breach of 2013, cardholder data encryption must take place prior to card data entering the POS and not after. Encryption takes place within the confines
Tokenization_(data_security)
Block cipher
cryptanalysis of the Tiny Encryption Algorithm (PDF) (Masters thesis). The University of Alabama, Tuscaloosa. Retrieved October 10, 2018. DataFlow Diagram A web
XTEA
Technical standard
RSA algorithm for public-key cryptography. It defines the mathematical properties of public and private keys, primitive operations for encryption and
PKCS_1
Theory of cryptography
sponge-construct to define the algorithm. For other examples, a sponge function can be used to build authenticated encryption with associated data (AEAD), as well as
Sponge_function
International standard
which encryption algorithms may be used for encrypting PINs. The approved algorithms are: Triple Data Encryption Algorithm RSA; Advanced Encryption Standard
ISO_9564
Ability to easily switch cryptographic primitives
13 November 2019. Bl, Stephanie; a (2014-05-01). "Shor's Algorithm – Breaking RSA Encryption". AMS Grad Blog. Retrieved 2019-08-09. Henry, Jasmine. "3DES
Cryptographic_agility
Homomorphic encryption library
of homomorphic encryption. Development originally came out of the Cryptonets paper, demonstrating that artificial intelligence algorithms could be run on
Microsoft_SEAL
Encryption algorithm used by DVB television standard
The Common Scrambling Algorithm (CSA) is the encryption algorithm used in the DVB digital television broadcasting for encrypting video streams. CSA was
Common_Scrambling_Algorithm
Controversial pseudorandom number generator
which have a software-controlled command-line switch to select the encryption algorithm, or a "registry" system, like most Microsoft products, such as Windows
Dual_EC_DRBG
Management of cryptographic keys
generate the encryption keys can use them to access sensitive, regulated data. If a certificate authority is compromised or an encryption algorithm is broken
Key_management
Practice of completely wiping data from a storage medium
maintained. However this assumes that the level of data encryption on the device is resistant to future encryption attacks. For instance, a hard drive utilizing
Data_sanitization
Method of overwriting data
the data. Changing the encryption key renders inaccessible all data stored on a SED, which is an easy and very fast method for achieving a 100% data erasure
Data_erasure
International standard
Cryptography (ECC) Algorithms in Cryptographic Message Syntax (CMS), obsolete) RFC 5084 (Using AES-CCM and AES-GCM Authenticated Encryption in the Cryptographic
Cryptographic_Message_Syntax
Daemon Data Database Debug Determinancy diagramming Developer Device driver Digital subscriber line (DSL) Dock DOS DPI Driver DRM Encryption Emulator
List_of_technology_terms
Framework for cryptographic protocols
would enable zero-RTT encryption, or doesn't wish to use the zero-RTT handshake. A zero-RTT protocol allows encryption of data in the initial message
Noise_Protocol_Framework
Basic component of symmetric key algorithms
Data Encryption Standard (DES), but in some ciphers the tables are generated dynamically from the key (e.g. the Blowfish and the Twofish encryption algorithms)
S-box
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)
Discontinued source-available disk encryption utility
a discontinued source-available freeware utility used for on-the-fly encryption (OTFE). It can create a virtual encrypted disk within a file, encrypt
TrueCrypt
Public-key cryptosystem
Public Key Encryption (version 2.1), Cryptology ePrint Archive, IACR R. Housley; S. Turner (February 2025). Use of the RSA-KEM Algorithm in the Cryptographic
Key_encapsulation_mechanism
Projector D'Agapeyeff cipher • Daniel J. Bernstein • Data Authentication Algorithm • Data Encryption Standard • Datagram Transport Layer Security • David
Index of cryptography articles
Index_of_cryptography_articles
Block cipher
MISTY1" (PDF). Mitsuru Matsui (1997). Block encryption algorithm MISTY. Fast Software Encryption, 4th International Workshop, FSE '97, LNCS 1267. pp. 64–74
MISTY1
Quantum search algorithm
that Grover's algorithm poses a significantly increased risk to encryption over existing classical algorithms, however. Grover's algorithm, along with variants
Grover's_algorithm
Type of challenge–response authentication
need to know the password used by Alice, or the secret encryption key of Bob. Bob has heard of data breaches of server databases, and decided that he doesn't
Salted Challenge Response Authentication Mechanism
Salted_Challenge_Response_Authentication_Mechanism
American computer security company
numerous international offices. Ron Rivest, Adi Shamir and Leonard Adleman, who developed the RSA encryption algorithm in 1977, founded RSA Data Security
RSA_Security
Hash function phenomenon
the original on 2016-03-16. Retrieved 2016-04-20. Much more than encryption algorithms, one-way hash functions are the workhorses of modern cryptography
Hash_collision
Block cipher
In cryptography, DEAL (Data Encryption Algorithm with Larger blocks) is a symmetric block cipher derived from the Data Encryption Standard (DES). Its design
DEAL
Privacy-enhancing computing technique
protecting data in use. Confidential computing can be used in conjunction with storage and network encryption, which protect data at rest and data in transit
Confidential_computing
Deprecated security algorithm for wireless networks
Wired Equivalent Privacy (WEP) is an obsolete security algorithm for 802.11 wireless networks. It was introduced as part of the original IEEE 802.11 standard
Wired_Equivalent_Privacy
Quantum algorithm for integer factorization
Algorithm, by Neal Young, Last modified: Tue May 21 11:47:38 1996. III. Breaking RSA Encryption with a Quantum Computer: Shor's Factoring Algorithm,
Shor's_algorithm
General form of cryptanalysis applicable primarily to block ciphers
be accompanied by evidence that the algorithm is resistant to this attack and many including the Advanced Encryption Standard, have been proven secure against
Differential_cryptanalysis
American software company
American enterprise data protection software company that provides discovery, classification, masking and encryption software, along with data compression software
PKWare
Stream ciphers
offers better performance than the more prevalent Advanced Encryption Standard (AES) algorithm on systems where the CPU does not feature AES acceleration
Salsa20
1999 public-key cryptography algorithm
Dublin data security company. Flannery named it for mathematician Arthur Cayley. It has since been found to be flawed as a public-key algorithm, but was
Cayley–Purser_algorithm
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
Male
Hebrew
Variant spelling of Hebrew Dathan, DATAN means "belonging to a fountain."
Girl/Female
Hindu
A creeper
Female
Hindi/Indian
(लता) Hindi name derived from a plant name, from the Sanskrit word lata, LATA means "creeper," in reference to a creeping plant.
Female
Polish
Short form of Polish Edyta, DYTA means "rich battle."
Female
Hungarian
 Short form of Hungarian Katalin, KATA means "pure." Compare with other forms of Kata.
Female
Polish
 Variant spelling of Polish Dyta, DITA means "rich battle." Compare with another form of Dita.
Female
Finnish
 Short form of Finnish Katariina, KATA means "pure." Compare with other forms of Kata.
Male
English
English surname transferred to unisex forename use, possibly DANA means "from Denmark."
Male
Hebrew
(דֶּרַע) Hebrew name DARA means "the arm." In the bible, this is the name of a son of Zerah. Compare with other forms of Dara.
Male
Irish
 From Irish Gaelic Mac Dara, DARA means "son of oak." Compare with other forms of Dara.
Female
Russian
 Short form of Russian Yekaterina, KATA means "pure." Compare with other forms of Kata.
Male
Iranian/Persian
 Short form of Persian Dârayavahush, DARA means "possesses a lot, wealthy." Compare with other forms of Dara.
Female
Hebrew
(×“Ö¼Ö¸× Ö¸×”) Feminine form of Hebrew Dan, DANA means "judge." Compare with other forms of Dana.
Female
Hebrew
(דִּיתָה) Pet form of Hebrew Yehuwdiyth, DITA means "Jewess" or "praised." Compare with another form of Dita.
Male
Turkish
Turkish name ATA means "ancestor."
Female
English
 Middle English name DARA means "brave, daring." Compare with another form of Dara.
Female
Slavic
 Short form of Slavic Bogdana, DANA means "gift from God." Compare with other forms of Dana.
Female
Finnish
Variant form of Finnish Aada, AATA means "noble."
Female
English
 English surname transferred to unisex forename use, possibly DANA means "from Denmark." Compare with other forms of Dana.
Male
Irish
Irish Gaelic name MAC DARA means "son of oak." This is the name of a patron saint and is still common in Ireland, especially in Connemara.
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
Boy/Male
Hindu, Indian, Modern
Gift
Girl/Female
Arabic, Australian, Danish
Clever
Girl/Female
Indian
Victory of the Guru, Triumph of the Guru
Girl/Female
Indian
Song of the nightingale
Girl/Female
English
Star.
Girl/Female
Gujarati, Indian, Kannada
Form of Quintana
Boy/Male
Indian
Developer of the World
Girl/Female
Australian, Swedish
Pearl
Girl/Female
Tamil
Amiable and cooperative
Girl/Female
German
War goddess.
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
INTERNATIONAL DATA-ENCRYPTION-ALGORITHM
n.
That addition to a writing, inscription, coin, etc., which specifies the time (as day, month, and year) when the writing or inscription was given, or executed, or made; as, the date of a letter, of a will, of a deed, of a coin. etc.
p. pr. & vb. n.
of Date
n.
The state or principles of international interests and intercourse.
n.
The point of time at which a transaction or event takes place, or is appointed to take place; a given point of time; epoch; as, the date of a battle.
n.
The doctrines or organization of the International.
n.
The fruit of the date palm; also, the date palm itself.
a.
Between or among nations; pertaining to the intercourse of nations; participated in by two or more nations; common to, or affecting, two or more nations.
n.
A member of the International Association.
imp. & p. p.
of Date
pl.
of Datum
v. t.
To note the time of writing or executing; to express in an instrument the time of its execution; as, to date a letter, a bond, a deed, or a charter.
n. pl.
See Datum.
n.
Prior date; a date antecedent to another which is the actual date.
a.
Done by intention or design; intended; designed; as, the act was intentional, not accidental.
adv.
In an international manner; from an international point of view.
n.
One who is versed in the principles of international law.
a.
Of or concerning the association called the International.
v. t.
To note or fix the time of, as of an event; to give the date of; as, to date the building of the pyramids.
n.
The International; an abbreviated from of the title of the International Workingmen's Association, the name of an association, formed in London in 1864, which has for object the promotion of the interests of the industrial classes of all nations.
n.
A member of the International; one who believes in, or advocates the doctrines of, the International.