[permalink] [id link]
Encryption, by itself, can protect the confidentiality of messages, but other techniques are still needed to protect the integrity and authenticity of a message ; for example, verification of a message authentication code ( MAC ) or a digital signature.
from
Wikipedia
Some Related Sentences
Encryption and by
The Advanced Encryption Standard ( AES ) is a specification for the encryption of electronic data established by the U. S. National Institute of Standards and Technology ( NIST ) in 2002.
In recent years, the cipher has been superseded by the Advanced Encryption Standard ( AES ).
On 26 May 2002, DES was finally superseded by the Advanced Encryption Standard ( AES ), following a public competition.
Encryption has long been used by militaries and governments to facilitate secret communication.
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.
Encryption of a letter by a shift n can be described mathematically as,
The Advanced Encryption Standard ( AES ) algorithm approved by NIST in December 2001 uses 128-bit blocks.
The OpenPGP compliant ' Whole Message Encryption ', which, by including the header section, even makes the structure of a message unrecognizable, can automatically secure non-anonymous communication as well.
In electric and gas utility SCADA systems, the vulnerability of the large installed base of wired and wireless serial communications links is addressed in some cases by applying bump-in-the-wire devices that employ authentication and Advanced Encryption Standard encryption rather than replacing all existing nodes.
* Encryption / SSL acceleration: when secure web sites are created, the SSL encryption is often not done by the web server itself, but by a reverse proxy that is equipped with SSL acceleration hardware.
The Advanced Encryption Standard ( AES ), the block cipher ratified as a standard by National Institute of Standards and Technology of the United States ( NIST ), was chosen using a process markedly more open and transparent than its predecessor, the aging Data Encryption Standard ( DES ).
* Cryptography: A worrying theoretical cryptanalytic attack on the Advanced Encryption Standard ( AES ) has been announced in a paper by Nicolas Courtois and Josef Pieprzyk entitled " Cryptanalysis of Block Ciphers with Overdefined Systems of Equations ".
It was designed by Ron Rivest, Matt Robshaw, Ray Sidney, and Yiqun Lisa Yin to meet the requirements of the Advanced Encryption Standard ( AES ) competition.
Encryption is provided using the SSL / TLS protocol-layer, either in the traditional always-on mode used by HTTPS or using the HTTP Upgrade extension to HTTP ( RFC 2817 ).
One of their joint projects resulted in the algorithm Rijndael, which in October 2000 was selected by the National Institute for Standards and Technology ( NIST ) to become the Advanced Encryption Standard ( AES ).
The Electronic Frontier Foundation's Deep Crack, built by a group of enthusiasts for US $ 250, 000 in 1998, could break a 56-bit Data Encryption Standard ( DES ) key in days, and would be able to break 40-bit DES encryption in about two seconds.
It was designed by David Wheeler and Roger Needham of the Cambridge Computer Laboratory ; it was first presented at the Fast Software Encryption workshop in Leuven in 1994, and first published in the proceedings of that workshop.
It is comparable in many respects to the European Union's NESSIE project and to the Advanced Encryption Standard process run by NIST in the U. S ..
It was designed by Vincent Rijmen ( co-creator of the Advanced Encryption Standard ) and Paulo S. L. M. Barreto, who first described it in 2000.
Encryption is done by a stream cipher.
This approach of alternatively applying substitution and permutation transformation has been used by IBM in the Lucifer cipher system, and has become the standard for national data encryption standards such as the Data Encryption Standard and the Advanced Encryption Standard.
Encryption and can
Encryption can be used to protect data " at rest ", such as files on computers and storage devices ( e. g. USB flash drives ).
Encryption under ElGamal requires two exponentiations ; however, these exponentiations are independent of the message and can be computed ahead of time if need be.
A generalized Feistel algorithm can be used to create strong permutations on small domains of size not a power of two ( see Format-Preserving Encryption ).
Encryption is a CPU intensive process that can slow down backup speeds, and the security of the encrypted backups is only as effective as the security of the key management policy.
Other, semantically insecure algorithms such as RSA, can be made semantically secure ( under stronger assumptions ) through the use of random encryption padding schemes such as Optimal Asymmetric Encryption Padding ( OAEP ).
Encryption ( e. g. Transport Layer Security ( SSL / TLS )) can be the only strong defense against unauthorized access.
Encryption can prevent eavesdropping.
Encryption can be either 40-bit, compatible with Adobe Acrobat 3. 0 or 4. 0, or 128 bits for Acrobat 5. 0 or higher.
Encryption can be applied to data in many ways.
Although XML Encryption can be used to encrypt any kind of data, it is nonetheless known as " XML Encryption " because an XML element ( either an < tt > EncryptedData </ tt > or < tt > EncryptedKey </ tt > element ) contains or refers to the cipher text, keying information, and algorithms.
Devices in the family can use either the National Institute of Standards and Technology ( NIST ) Advanced Encryption Standard ( AES ) or SCIP to provide Type 1 encryption, with communication levels classified up to Top Secret.
Encryption and protect
* Encryption is used to protect the message from the eyes of others.
Encryption is also used to protect data in transit, for example data being transferred via networks ( e. g. the Internet, e-commerce ), mobile telephones, wireless microphones, wireless intercom systems, Bluetooth devices and bank automatic teller machines.
Encryption was used to protect satellite-distributed feeds for cable television networks.
Encryption is used to protect the control word during transmission to the receiver: the control word is encrypted as an entitlement control message ( ECM ).
Encryption and confidentiality
Authenticated Encryption ( AE ) is a block cipher mode of operation which simultaneously provides confidentiality, integrity and authenticity assurances on the data.
Encryption and messages
* Encryption and / or sender authentication of e-mail messages ( e. g., using OpenPGP or S / MIME ).
Encryption, which is actually a part of cryptography, involves transforming texts or messages into a code which is unreadable.
Encryption will not only encrypt your messages, but also malware.
The library includes over a dozen boxes of the files of Herbert Yardley, declassified Enigma messages, technical reports, and books including how to crack the Data Encryption Standard using Deep Crack.
Encryption software is software whose main task is encryption and decryption of data, usually in the form of files on ( or sectors of ) hard drives and removable media, email messages, or in the form of packets sent over computer networks.
XML Encryption is different from and unrelated to Transport Layer Security, which is used to send encrypted messages ( including xml content, both encrypted and otherwise ) over the internet.
0.137 seconds.