synthetic nonsteroid with the properties of estrogen; formerly used to treat menstrual problems but was found to be associated with vaginal cancers in the daughters of women so treated during pregnancy
Data Encryption Standard - The name of the Federal Information Processing Standard (FIPS), which describes the data encryption algorithm (DEA) DES and DEA are interchangeable The DEA has a 64-bit block size and uses a 56-bit key during execution (8 parity bits a re stripped off from the full 64-bit key The DEA is a symmetric cryptosystem When used for communication, both sender and receiver must know the same secret key, which can be used in encrypt or decrypt the message, or to generate and verify a message authentication code (MAC) The DEA can also be used for single user encryption; such as to store files on a hard disk in encrypted form In a multi-user environment, secure key distribution may be difficult; public key cryptography provides an ideal solution to this problem
Data Encryption Standard A standard put forth by the US government around 1977 for sensitive but nonclassified information Uses a 56 bit key (64 plus 8 parity bits), and 16 rounds Still considered a reasonably good standard Hard to implement in software, easy in hardware Developed by IBM with technical assisstence from the US government Was recently (around 1993) renewed for the standard for another 20 years Some methods now exist that make the most primitive use of this system slightly less secure, and hypothetically breakable given an inordinate amount of time and resources
Data Encryption Standard A commonly used standard method for encrypting and decrypting data DES was developed by the U S National Institute of Standards and Technology
Data Encryption Standard A commonly-used standard method for encrypting and decrypting data Encryption is necessary, as valuable and sensitive information is often sent from one computer to another via a network that technically can be accessed by anybody It provides a degree of security should the information fall into the wrong hands DES was developed by the U S National Institute of Standards & Technology
DES (Data Encryption Standard) is an algorithm using a key system for encryption, and both the sender and receiver of a message encrypted with DES must have the same private key - data in transit cannot be deciphered without the appropriate key
(Data Encryption Standard) - Is a widely used method of data encryption that uses a 40-bit and 56-bit key to encrypt and decrypt data DES and Triple-DES are used as encryption algorithms by S/MIME See Also: Triple DES, S/MIME , VPN, IPSec Go to top
is a block encryption method originally developed by IBM It has since been certified by the U S government for transmission of any data that is not classified top secret DES uses an algorithm for doing private-key encryption The key consists of 64 bits of data, which are transformed and combined with the first 64 bits ofthe message to be sent To do the encryption, the message is broken up into 64-bit blocks so that each can be combined with the key using a complex 16-step process DES is a very weak encryption standard and shouldn't be used for senstive data
DES stands for Data Encryption Standard, the name of the Federal Information Processing Standard (FIPS) 46-1 that describes the data encryption algorithm (DEA) The DEA is the best known and most widely used symmetric algorithm in the world However, AES, the Advanced Encryption Standard, is under development and will replace DES
Data Encryption Standard (DES) is a widely-used method of data encryption using a private (secret) key that was judged so difficult to break by the U S government that it was restricted for exportation to other countries DES originated at IBM in 1977 and was adopted by the U S Department of Defense It is specified in the ANSI X3 92 and X3 106 standards and in the Federal FIPS 46 and 81 standards
Data Encryption Standard An encryption block cipher developed in 1977 by IBM It applies a 56-bit key to each 64-bit block of data It provides strong encryption based on symmetric cryptography, i e both the sender and receiver must know the same secret key This key is used for both encryption and decryption DES can also be used for single-user encryption, e g to encrypt files and folders on a hard disk DES is sometimes used with 3 keys, in which case it is known as "triple DES" or 3DES The standard was endorsed by the U S government in 1977 as an official standard, and has been recertified every five years by NIST However, in 1997 an effort by more than 14,000 computer users made it possible to decipher a message that was encrypted with DES NIST therefore opened for submissions for its replacement and the winning algorithm, Rijndael, has become AES (Advanced Encryption Standard)
Data Encryption Standard (or Data Encryption Algorithm): the most widely used method for "symmetric" encryption (i e using the same key for encryption and decryption) The main source is ANSI X3 92
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