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Topic: Triple DES



  
 Block Ciphers
Triple DES has always been regarded with some suspicion, since the original algorithm was never designed to be used in this way, but no serious flaws have been uncovered in its design, and it is today (Spring 2001) a viable cryptosystem used in a number of Internet protocols.
Triple DES was developed to address the obvious flaws in DES without designing a whole new cryptosystem.
DES uses a 56-bit key which can be broken using brute-force methods, and is now considered obsolete.
http://www.freesoft.org/CIE/Topics/143.htm

  
 Triple DES, DES, and Skipjack - FIPS 46-3, 81, and 185
Validation testing for AES, Triple-DES, DES, and Skipjack algorithms are handled by the Cryptographic Module Validation ( CMV) Program's CMT labs.
For the complete specification of Triple-DES, the standard ANSI X9.52-1998, Triple Data Encryption Algorithm Modes of Operation, must be used in conjunction with FIPS 46-3.
Triple-DES tests are described in NIST Special Publication 800-20, Modes of Operation Validation System for the Triple Data Encryption Algorithm (TMOVS): Requirements and Procedures.
http://csrc.nist.gov/cryptval/des.htm

  
 Triple DES Encryption
Triple DES has been endorsed by NIST as a temporary standard to be used until the AES is finished sometime in 2001.
Triple DES is a minor variation of this standard.
Triple DES was the answer to many of the shortcomings of DES.
http://www.tropsoft.com/strongenc/des3.htm   (904 words)

  
 E-Commerce News: Security : Benchmarking Encryption Technology
Triple DES repeats standard DES' fixed 56-bit encryption procedure three times and relies on three 64-bit keys, according to the U.S. Department of Commerce's National Institute of Standards and Technology, which oversaw third-party development of both Triple DES and AES.
Because Triple DES has existed for about 25 years, it is well entrenched in the corporate world -- and is unlikely to lose its stronghold soon, according to industry observers.
Today, most developers support Triple DES, although a growing number are adding AES support to their SSL (secure sockets layer) and VPN (virtual private network) products.
http://www.ecommercetimes.com/perl/story/31311.html   (1016 words)

  
 Xcell Journal Online -- Reconfigurability article
Three 64-bit keys were used for an encrypt/decrypt/encrypt cycle in a triple DES pass, and the same keys allowed decrypt/encrypt/decrypt for decrypting the data.
Theoretical performance for the FPGA was calculated as follows: The triple DES implementation produced a 64-bit word every 19 clock cycles, giving a data throughput of 85.6 Mbps for a device running at 25.4 MHz.
A test harness enabled triple DES performance to be benchmarked by streaming data into either the software or hardware encryption algorithm.
http://www.xilinx.com/publications/xcellonline/xcell_45/xc_recon45.htm   (2080 words)

  
 Triple DES Dare You ATM Marketplace News
The industry settled on Triple DES as the most logical alternative to DES, Broadway said, because it can be easily incorporated into existing DES systems and is based on standards and procedures already familiar to most in the ATM business.
The DES algorithm uses a 56-bit key length; Triple DES specifies three rounds of encryption, effectively increasing the key length to 168 bits.
While Star was successfully running some Triple DES transactions by that date, Burke said the network today is still waiting to make arrangements for testing with some vendors, transaction processors and host systems.
http://www.atmmarketplace.com/news_story.htm?i=17111   (1925 words)

  
 Triple DES - Wikipedia, the free encyclopedia
DES is not a group; if it were one, the Triple-DES construction would be equivalent to a single DES operation and no more secure.
In cryptography, Triple DES (also 3DES) is a block cipher formed from the Data Encryption Standard (DES) cipher.
After a public competition, the AES (Rijndael) cipher was chosen as the successor to DES and triple DES.
http://www.rockvillecentre.us/project/wikipedia/index.php/Triple_DES   (369 words)

  
 Encryption Products
Supports DES and Triple DES encryption with chain block coding, a technique that adds security by changing the encryption key continuously throughout the file.
Uses Triple-DES, or NIST-approved DES encryption algorithms to safeguard the integrity and privacy of data as it travels over the protected network links.
Once a connection is made, SecureFrame-L uses the strongest encryption with Triple-DES and NIST-approved DES and Diffie-Hellman public key management to secure the link and encrypt each communication session.
http://www.infosec-associates.com/framework/encryption-products.html   (369 words)

  
 Triple DES encryption solutions
Triple DES for ATM’s originates from the new ADA accessibility guidelines will require many facilities and their various component elements, such as ATMs, to be amended to allow improved access to the disabled.
Triple DES and Triple DES encryption solutions from The Banker’s Exchange can help you meet the challenges of these new requirements with NCR Triple DES ATM Parts as well as Diebold Triple DES ATM Parts.
Your route is: Home > ATM Parts > Triple Des
http://www.bankersx.com/triple-des-encryption.html   (114 words)

  
 90d6089d60ed8c11e251da02e6f090bcc4129bb9
config CRYPTO_DES tristate "DES and Triple DES EDE cipher algorithms" depends on CRYPTO help DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
config CRYPTO_DES_Z990 tristate "DES and Triple DES cipher algorithms for IBM zSeries z990" depends on CRYPTO && ARCH_S390 help DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
Rijndael appears to be consistently a very good performer in both hardware and software across a wide range of computing environments regardless of its use in feedback or non-feedback modes.
http://www.grmso.net:8090/blob/90d6089d60ed8c11e251da02e6f090bcc4129bb9   (114 words)

  
 linux-2.6.9/crypto/Kconfig
77 Whirlpool will be part of the ISO/IEC 10118-3:2003(E) standard 78 79 See also: 80 http://planeta.terra.com.br/informatica/paulobarreto/WhirlpoolPage.html 81 82 config CRYPTO_DES 83 tristate "DES and Triple DES EDE cipher algorithms" 84 depends on CRYPTO 85 help 86 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
87 88 config CRYPTO_DES_Z990 89 tristate "DES and Triple DES cipher algorithms for IBM zSeries z990" 90 depends on CRYPTO andand ARCH_S390 91 help 92 DES cipher algorithm (FIPS 46-2), and Triple DES EDE (FIPS 46-3).
This algorithm is required for driver-based 209 WEP, but it should not be for other purposes because of the 210 weakness of the algorithm.
http://www.cs.wisc.edu/~vikas/lxr/http/source/crypto/Kconfig?a=um   (114 words)

  
 Welcome to CaseandAssociates.com
Triple DES (Data Encryption Standard) is the new encryption standard being mandated by Visa and MasterCard.
The new requirement is for the Triple DES encryption to occur inside the keyboard/encryptor, and subsequently the newly encrypted PIN is not available to the network or ATM application software until the PIN is fully encrypted.
Triple DES refers to the encryption or “scrambling” of the Personal Identification Number (PIN) that the ATM user enters during the ATM transaction process.
http://www.caseandassociates.com/tripledes.html   (976 words)

  
 Triple DES cryptography software
Triple DES (3DES) or the Triple Data Encryption Algorithm (TDEA) is a refinement of DES recognised as a FIPS-approved algorithm.
Triple DES is described in NIST Special Publication 800-67.
Two-key triple DES is option 2 where we encrypt with K1, then decrypt with K2 and finally encrypt again with K1.
http://www.cryptosys.net/3des.html   (482 words)

  
 - Debunking NCR Triple DES Bulletin
Triple DES is about protection, ensuring that the PIN is kept secure from the tip of the customers finger to the completion of the transaction.
However, unfortunately for us in the retail business just because a Triple DES kit is offered, it doesn't mean that the processor will allow it on their network (just a warning, specific to small ISO's who may seek out third party 3DES kits, check with your processor before you purchase the kits).
The entire theme is independently developed Triple DES conversion devices, perjoratively referred to in the article as "black box," do not comply with MasterCard requirements.
http://www.atmmarketplace.com/dcforum/DCForumID3/51.html   (4882 words)

  
 Triple DES Encryption for IPSec
Triple DES (3DES) is a strong form of encryption that allows sensitive information to be transmitted over untrusted networks.
Configure a transform-set that identifies the IPSec triple DES transform to use for encapsulating network traffic.
IPSec supports the Triple DES encryption algorithm (168-bit) in addition to 56-bit encryption.
http://www.cisco.com/univercd/cc/td/doc/product/software/ios120/120newft/120t/120t2/3desips.htm   (740 words)

  
 94020401.HTM
DES structures with additional ciphering levels, such as 2x3 DES or 4x3 DES, are also available, at a processing cost similar to triple- DES, but with the increased strength of a larger block size.
This is faster than triple DES, because twice as much data are enciphered in each block: 2x2 DES has a cost similar to double-DES.
I call that approach "NxM DES," of which 2x2 DES is perhaps the easiest nontrivial example: 2x2 DES Instead of repeatedly enciphering a single 8-byte block, consider using multiple DES cipherings to form a 16-byte block operation and thereby improve plaintext block statistics.
http://www.ciphersbyritter.com/NEWS/94020201.HTM   (1470 words)

  
 Triple DES, DES, and Skipjack - FIPS 46-3, 81, and 185
Validation testing for AES, Triple-DES, DES, and Skipjack algorithms are handled by the Cryptographic Module Validation (CMV) Program's CMT labs.
Triple DES, DES, and Skipjack - FIPS 46-3, 81, and 185
These lists identify the algorithm implementations which have been tested as correctly implementing the AES, Triple-DES, DES, and Skipjack algorithms.
http://csrc.nist.gov/cryptval/des.htm   (492 words)

  
 RFC 3217 (rfc3217) - Triple-DES and RC2 Key Wrapping
Triple- DES and RC2 content-encryption keys are encrypted in Cipher Block Chaining (CBC) mode [MODES].
When a Two-key Triple-DES key is to be wrapped, a third DES key with the same value as the first DES key is created.
Set odd parity for each of the DES key octets comprising the Three-Key Triple-DES key that is to be wrapped, call the result CEK.
http://www.faqs.org/rfcs/rfc3217.html   (1883 words)

  
 Introduction to FreeS/WAN
Since both the security of single DES and the overheads of triple DES are seriously inferior to many other ciphers, this is a spectacularly dubious "advantage".
Triple DES is the default block cipher for Linux FreeS/WAN.
A variant of triple DES or 3DES in which only two keys are used.
http://www.freeswan.org/freeswan_trees/CURRENT-TREE/doc/glossary.html   (11547 words)

  
 NIST says DES encryption 'inadequate' InfoWorld News 2004-07-29 By Paul Roberts, IDG News Service
Still, the switch to Triple DES or AES may be difficult for older software products, many of which were designed to work exclusively with single DES and may not integrate well with products using the newer algorithms, he said.
Either Triple DES or AES are "many trillions of times" stronger than DES and could take decades -- or centuries to break, even with the current rate of advancement in computer processing speed, Kocher said.
NIST is proposing that federal agencies only use DES as a component of the Triple Data Encryption Algorithm (TDEA), also known as "Triple DES." However, NIST encouraged agencies to implement the stronger and faster Advanced Encryption Standard (AES) algorithm instead.
http://www.infoworld.com/article/04/07/29/HNdesinadequate_1.html   (1431 words)

  
 Security Forums :: View topic - 5 general cryptographic questions/dcpp questions
Overall, the attacks on double encryption and triple encryption with two keys are much more realistic than that of triple encryption with three keys, whereas, no current attack based on these analyses of the general three-key Triple-DES that we commonly use today is practical in the sense of rendering it completely insecure.
If Triple-DES is to be used at all, it should be used with three independent keys; otherwise, you are multiplying your resource requirements, which outweigh what minuscule security increase you will gain.
DES came at a time before the bulk of this research existed, and as it was the most widely cryptanalyzed symmetric algorithm to date, it also became the target of such analysis, when that analysis produced results.
http://www.security-forums.com/forum/viewtopic.php?p=82893   (3671 words)

  
 TechOnLine - Xilinx's FPGA-Based DES and Triple-DES Cores Address Data-Security
Triple DES is a cascaded chain of three single-DES functions to further enhance security.
The X_3DES triple DES core supports the most popular ECB mode with customization available for other modes.
Data encryption and decryption (DES and triple DES)
http://www.techonline.com/community/member_company/non_member/news/896/content_5388   (314 words)

  
 DES Encryption Package
For reasons that are beyond the scope of this document, Triple DES is actually only as secure as a block encryption method using a key twice as long as that used by regular DES.
If Triple DES is desired (in addition to regular DES), the label TRIPLEDES must be defined, usually by a -D option on the compiler command line.
Triple DES is slower than regular DES, but it gives added security.
http://www.efgh.com/software/des.htm   (663 words)

  
 Download details: Services for UNIX 2.0: Triple DES Library Source Code
The Triple DES Library source code provided after completing this download is not a Patch, Service Pack, or Quick Fix (QFE).
Note: The Triple DES Library source code provided after completing this download is not a Patch, Service Pack, or Quick Fix (QFE).
Customers will be responsible for porting the Triple DES Library source code to other UNIX platforms.
http://www.microsoft.com/downloads/details.aspx?FamilyID=f41f2c8f-20f9-400b-a8e8-da3a7f698bc6&DisplayLang=en   (207 words)

  
 Triple DES - Wikipedia, the free encyclopedia
In cryptography, Triple DES is a block cipher formed from the Data Encryption Standard (DES) cipher by using it three times.
Triple DES is also known as TDES or, more standard, TDEA (Triple Data Encryption Algorithm
Note that DES is not a group; if it were one, the TDES construction would be equivalent to a single DES operation and no more secure.
http://en.wikipedia.org/wiki/Triple_DES   (658 words)

  
 RFC 1851 (rfc1851) - The ESP Triple DES Transform
Triple DES with independent keys is not, as naively might be expected, as difficult to break by brute force as a cryptosystem with three times the keylength.
Encrypt the payload with Triple DES (EDE mode), producing a ciphertext of the same length.
RFC 1851 - The ESP Triple DES Transform
http://www.faqs.org/rfcs/rfc1851.html   (2115 words)

  
 Triple DES, DES, and Skipjack - FIPS 46-3, 81, and 185
Triple DES, DES, and Skipjack- FIPS 46-3, 81, and 185
Details on the security of DES and the migration from DES to Triple-DES are discussed in FIPS 46-3.
The announcement of FIPS 46-3 is available, which specifies the use of Triple-DES.
http://csrc.nist.gov/cryptval/des.htm   (492 words)

  
 Remote Data Backups - 112-Bit Triple DES Encryption - secure file backup service vs. tape drive
In Triple DES, the keyed DES function is iterated three times, an encryption followed by a decryption followed by an encryption, and generates the ciphertext for the block.
Triple DES (sometimes called 3DES) is a variation of the DES encryption scheme.
When all three keys (k1, k2 and k3) are the same, Triple DES is equivalent to DES.
http://www.remotedatabackups.com/don/security/encryption.cfm   (849 words)

  
 Security Forums :: View topic - Implemention of Triple-DES.
DES is still the core of Triple-DES, therefore, you operate on fixed blocks of 64 bits.
Triple DES encrypts 64-bit data at a time and an alogrithm that encrypts more bits i.e.
The main reasons (as far as i know) of AES replacing Triple DES was
http://www.security-forums.com/forum/viewtopic.php?t=13144   (2193 words)

  
 Triple DES passed ANSI X9
But the government is also committed to key escrow encryption, and we do not believe that the proposal for triple DES is consistent with this objective.
Triple DES passed ANSI X9 Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Subject: Triple DES passed ANSI X9 From: shirey@mitre.org (Robert W. Shirey)
http://www.sandelman.ottawa.on.ca/ipsec/1995/02/msg00042.html   (1723 words)

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