Data Encryption Standard

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Related to Data Encryption Standard: Advanced Encryption Standard

data encryption standard

[′dad·ə en‚krip·shən ′stan·dərd]
A cryptographic algorithm of validated strength which is in the public domain and is accepted as a standard. Abbreviated DES.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

Data Encryption Standard

(DES) The NBS's popular, standard encryption algorithm. It is a product cipher that operates on 64-bit blocks of data, using a 56-bit key. It is defined in FIPS 46-1 (1988) (which supersedes FIPS 46 (1977)). DES is identical to the ANSI standard Data Encryption Algorithm (DEA) defined in ANSI X3.92-1981.

DES has been implemented in VLSI. SunOS provides a des command which can make use of DES hardware if fitted. Neither the software nor the hardware are supposed to be distributed outside the USA.

Unix manual pages: des(1), des(3), des(4).
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(1) (Digital Entertainment System) See digital media server.

(2) (Data Encryption Standard) A NIST-standard cryptographic cipher that uses a 56-bit key. Adopted by the NIST in 1977, it was replaced by AES in 2001 as the official standard. DES is a symmetric block cipher that processes 64-bit blocks in four different modes of operation, with the electronic code book (ECB) being the most popular.

Triple DES
By adding various multiple-pass methods, Triple DES increased security; for example, encrypting with one key, decrypting the results with a second key and encrypting it again with a third. However, the extra passes added considerable computing time to the process. DES is still used in applications that do not require the strongest security. See cipher, cryptography, NIST, AES and Fortezza.
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References in periodicals archive ?
* TripleDES (Triple Data Encryption Standard algorithm)
Acronyms and Abbreviations AH Authentication Header BITS Bump in the Stack BITW Bump in the Wire CPU Central Processing Unit DES Data Encryption Standard ESP Encapsulating Security Payload HMAC Hashed Message Authentication Code IDEA Internet Development and Exchange Association IDS Intrusion Detection System IETF Internet Engineering Task Force IPSec Internet Protocol Security ISP Internet Service Provider KMAC Keyed Message Authentication Code MAC Message Authentication Code NIC Network Interface Card PKI Public Key Infrastructure SA Security Association SPD Security Policy Database TCP/IP Transmission Control Protocol/Internet Protocol VPN Virtual Private Network
A Mitsubishi researcher said, "We succeeded in ensuring security to such an extent that it would take a trillion years to break (the Camellia) even if 10 billion supercomputers were working on it at the same time." The AES symmetric-key encryption algorithm was developed as a replacement for the 1977 Data Encryption Standard (DES) still widely used for encrypting data sent between banks.
The net result is that the CPU is allowed to concentrate on general operation and routing tasks, while the Hi/fn processor performs security algorithms such as triple-DES (Data Encryption Standard) encryption, RSA public key, and LZS compression.
The candidates to replace the Data Encryption Standard have been whittled down to five, and will now be subjected to intense international scrutiny as the US National Institute for Standards and Technology (NIST) enters the penultimate stage of its competition to find the Advanced Encryption Standard (AES) for the 21st century.
DES (Data Encryption Standard) was developed in the 1970s by IBM.
Their Data Encryption Standard was developed at a cost of some dollars 250,000 and won a dollars 10,000 prize from the RSA Data Company.
Data Encryption Standard (DES), an internationally standardized cipher, performs 16 iterations of the same series of operations.
To meet this need, the White House, rather reluctantly, approved the export of the Data Encryption Standard (DES), a 56-bit encryption scheme.
It also temporarily relaxed controls over encryption products involving the Data Encryption Standard (DES), a 56-bit encryption algorithm, but it has clearly not abandoned its push for key-recovery encryption.

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