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In cryptography, Triple DES is the common name for the Triple Data Encryption Algorithm ( TDEA or Triple DEA ) block cipher, which applies the Data Encryption Standard ( DES ) cipher algorithm three times to each data block.
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cryptography and Triple
; MIFARE Ultralight C: the first low-cost ICs for limited-use applications that offer the benefits of an open Triple DES cryptography
; Cryptography: Commonly used symmetric key algorithms like DES, Triple DES, AES, and asymmetric key algorithms such as RSA, elliptic curve cryptography are supported as well as other cryptographic services like signing, key generation and key exchange.
cryptography and DES
The introduction of DES is considered to have been a catalyst for the academic study of cryptography, particularly of methods to crack block ciphers.
" An astonishing share of the open literature in cryptography in the 1970s and 1980s dealt with the DES, and the DES is the standard against which every symmetric key algorithm since has been compared.
* Fast cryptography support for AES and DES
The ASF container can optionally support digital rights management using a combination of elliptic curve cryptography key exchange, DES block cipher, a custom block cipher, RC4 stream cipher and the SHA-1 hashing function.
An analysis of an older scheme used in WMA reveals that it is using a combination of elliptic curve cryptography key exchange, DES block cipher, a custom block cipher, RC4 stream cipher and the SHA-1 hashing function.
* Kahn, David – The Codebreakers ( ISBN 0-684-83130-9 ) A single-volume source for cryptographic history, at least for events up to the mid -' 60s ( i. e., to just before DES and the public release of asymmetric key cryptography ).
Two events have since brought it squarely into the public domain: the creation of a public encryption standard ( DES ), and the invention of public-key cryptography.
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.
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.
In cryptography, the Generalized DES Scheme ( GDES or G-DES ) is a variant of the DES block cipher designed with the intention of speeding up the encryption process while improving its security.
In cryptography, LOKI89 and LOKI91 are block ciphers designed as possible replacements for the Data Encryption Standard ( DES ).
In cryptography, DEAL ( Data Encryption Algorithm with Larger blocks ) is a block cipher derived from the Data Encryption Standard ( DES ).
The Electronic Frontier Foundation | EFF's US $ 250, 000 DES cracking machine contained 1, 856 custom chips and could brute force attack | brute force a DES key ( cryptography ) | key in a matter of days — the photo shows a two-sided DES Cracker circuit board fitted with 64 Deep Crack chips
In cryptography, the EFF DES cracker ( nicknamed " Deep Crack ") is a machine built by the Electronic Frontier Foundation ( EFF ) in 1998 to perform a brute force search of DES cipher's key space — that is, to decrypt an encrypted message by trying every possible key.
cryptography and is
The latter is more cumbersome to use, so it's only employed when necessary, for example in the analysis of arbitrary-precision arithmetic algorithms, like those used in cryptography.
In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called blocks, with an unvarying transformation that is specified by a symmetric key.
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 procedure.
In non-technical usage, a " cipher " is the same thing as a " code "; however, the concepts are distinct in cryptography.
* symmetric key algorithms ( Private-key cryptography ), where the same key is used for encryption and decryption, and
In cryptography, key size or key length is the size measured in bits of the key used in a cryptographic algorithm ( such as a cipher ).
It is one of the earliest practical examples of key exchange implemented within the field of cryptography.
Elliptic curve cryptography ( ECC ) is an approach to public-key cryptography based on the algebraic structure of elliptic curves over finite fields.
Public-key cryptography is based on the intractability of certain mathematical problems.
Elliptic curve cryptography is vulnerable to a modified Shor's algorithm for solving the discrete logarithm problem on elliptic curves.
In cryptography, encryption is the process of transforming information ( referred to as plaintext ) using an algorithm ( called a cipher ) to make it unreadable to anyone except those possessing special knowledge, usually referred to as a key.
The result of the process is information ( in cryptography, referred to as ciphertext ).
Factorization of large integers is believed to be a computationally very difficult problem, and the security of many modern cryptography systems is based upon its infeasibility.
The Communications-Electronics Security Group ( CESG ) of GCHQ provides assistance to government departments on their own communications security: CESG is the UK national technical authority for information assurance, including cryptography.
Although related, the distinctions among these measures mean that a random variable with high Shannon entropy is not necessarily satisfactory for use in an extractor and so for cryptography uses.
Information security uses cryptography to transform usable information into a form that renders it unusable by anyone other than an authorized user ; this process is called encryption.
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 presumed difficulty of this problem is at the heart of widely used algorithms in cryptography such as RSA.
This will have significant implications for cryptography if a large quantum computer is ever built.
The problem often arises in resource allocation where there are financial constraints and is studied in fields such as combinatorics, computer science, complexity theory, cryptography and applied mathematics.
cryptography and common
In the history of cryptography, codes were once common for ensuring the confidentiality of communications, although ciphers are now used instead.
In cryptography, a substitution cipher is a method of encryption by which units of plaintext are replaced with ciphertext, according to a regular system ; the " units " may be single letters ( the most common ), pairs of letters, triplets of letters, mixtures of the above, and so forth.
A common application is public-key cryptography ( such as that in every modern Web browser ), whose algorithms commonly employ arithmetic with integers having hundreds of digits.
Alice and Bob are archetypes in cryptography ; Eve is also common.
* 128 bits is a common key size for symmetric ciphers in cryptography.
In addition to providing encryption and authentication — features also provided by typical public-key cryptography suites, such as PGP, GnuPG, and X. 509 ( S / MIME ) — OTR also offers some less common features:
The most common definitions used in cryptography are indistinguishability under chosen plaintext attack ( abbreviated IND-CPA ), indistinguishability under ( non-adaptive ) chosen ciphertext attack ( IND-CCA ), and indistinguishability under adaptive chosen ciphertext attack ( IND-CCA2 ).
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