Phelix is a high speed stream cipher with a built in single pass message authentication code MAC functionality ... or , and rotation by a fixed number of bits. Phelix uses a 256 bit key and a 128 bit cryptographic ... to recover the secret key if the cipher is used incorrectly. Performance Phelix is optimised for 32 ... align center 264 align center 3.2 align center 12314 align left C 32 bit data path Helix Phelix is a slightly ... , Bruce Schneier , John Kelsey cryptanalyst John Kelsey , Stefan Lucks , and Tadayoshi Kohno Phelix ... sup 114 sup words of chosen plaintext. Phelix s design was largely motivated by Muller s differential attack. Security Phelix was selected as a Phase 2 Focus Candidate for both Profile 1 and Profile 2 by the eSTREAM project. The authors of Phelix classify the cipher as an experimental design in its specifications. The authors advise that Phelix should not be used until it had received additional cryptanalysis. Phelix was not advanced ref http www.ecrypt.eu.org stream PhaseIIreport.pdf eSTREAM Short ... Attacks against the Stream Cipher Phelix ref noted below that becomes possible when the prohibition against reusing a nonce is violated. A first cryptanalysis cryptanalytic paper on Phelix paper titled A Chosen key Distinguishing Attack on Phelix was published in October 2006 by Yaser Esmaeili Salehani ..., the attack unfortunately relies on incorrect assumptions concerning the initialisation of the Phelix ... paper on Phelix titled Differential Attacks against Phelix was published on the 26th of November ... Attack against Helix. The paper claims that the key of Phelix can be recovered with about 2 ... weakness in the structure of Helix and Phelix. The authors conclude that they consider Phelix to be insecure. References D. Whiting, B. Schneier, S. Lucks, and F. Muller, http www.schneier.com paper phelix.html Phelix Fast Encryption and Authentication in a Single Cryptographic Primitive ... PDF Yaser Esmaeili Salehani, Hadi Ahmadi A Chosen key Distinguishing Attack on Phelix, submitted ... more details
up. A priest named Fr. Phelix comes to their home that day with a CD of Ameer s voice recorded in which he tells her that he is bedridden and is counting his last days. Fr. Phelix informs them that Ameer ... scene of the movie, everyone goes to Phelix s orphanage and there we see Ameer who watches them from a distance and tells Phelix that it was a good decision to tell them that he is dead. Cast Kunchacko ... more details
Infobox Scientist image Replace this image male.svg Only freely licensed images may be used to depict living people. See WP NONFREE . image size 150px name Bart Preneel caption birth date residence flagicon Belgium Leuven , Belgium nationality Belgium Belgian work institution Katholieke Universiteit Leuven br University of California at Berkeley UCB alma mater Katholieke Universiteit Leuven field Cryptography known for Cryptographic hash functions Hash Functions br cryptanalysis br RIPEMD br One way compression function Miyaguchi Preneel Miyaguchi Preneel scheme occupation Professor , COSIC doctoral students Christophe De Canni re br Frederik Vercauteren br Souradyuti Paul website http homes.esat.kuleuven.be preneel Bart Preneel is a Belgium Belgian cryptographer and cryptanalyst . He is a professor at Katholieke Universiteit Leuven , in the COSIC group, ref cite web last first authorlink coauthors title K.U.Leuven Who is who work publisher K.U.Leuven date url http cwisdb.kuleuven.be persdb bin persdb?lang E&oproep persoon&fnaam u0003308 format doi accessdate 2008 03 27 ref president of the International Association for Cryptologic Research , and project manager of ECRYPT . Simultaneously with Shoji Miyaguchi , he invented the One way compression function Miyaguchi Preneel Miyaguchi Preneel scheme , a robust structure used in hash functions such as Whirlpool algorithm Whirlpool . He is one of the authors of the RIPEMD 160 hash function. He was also a co inventor of the stream cipher MUGI which later on went on to become a Japanese standard, and of the stream cipher Trivium cipher Trivium which is a well received entrant to the eSTREAM project. He has also contributed to the cryptanalysis of RC4 , SOBER t32 , MacGuffin cipher MacGuffin , Phelix Helix , Phelix , Py cipher Py , Py cipher TPypy , the HAVAL cryptographic hash function and the SecurID hash function, among others. References references External links http www.esat.kuleuven.ac.be preneel Home page Persondat ... more details
Niels T. Ferguson born 10 December 1965, Eindhoven is a Netherlands Dutch cryptographer and consultant who currently works for Microsoft . He has worked with others, including Bruce Schneier , designing cryptographic algorithms , testing algorithms and protocols, and writing papers and books. Among the designs Ferguson has contributed to is the AES finalist block cipher algorithm Twofish as well as the stream cipher Phelix Helix and the Skein hash function Skein hash function . In 1999, Niels Ferguson, together with Bruce Schneier and John Kelsey cryptanalyst John Kelsey , developed the Yarrow algorithm random number generator. Yarrow was later developed by Niels Ferguson and Bruce Schneier into the Fortuna PRNG Fortuna random number generator. In 2001, he claimed to have broken the High bandwidth Digital Content Protection HDCP system that is incorporated into HD DVD and Blu ray Disc s players, similar to the DVD s Content Scramble System , but has not published his research, citing the Digital Millennium Copyright Act of 1998, which would make such publication illegal. At the CRYPTO 2007 conference rump session, Niels Ferguson and Dan Shumow presented an informal paper describing a weakness in the NIST specified Dual EC DRBG PRNG . External links http www.macfergus.com MacFergus home page http www.ordinator.nl index.htm?body site niels.htm Short bio at the ORD GROUP site. http www.securityfocus.com news 236 Ferguson chooses not to publish his results because he fears being prosecuted under the Digital Millennium Copyright Act Persondata Metadata see Wikipedia Persondata . NAME Ferguson, Niels ALTERNATIVE NAMES SHORT DESCRIPTION DATE OF BIRTH 10 December 1965 PLACE OF BIRTH DATE OF DEATH PLACE OF DEATH DEFAULTSORT Ferguson, Niels Category Dutch cryptographers Category Modern cryptographers Category People from Eindhoven Category 1965 births Category Living people de Niels Ferguson fr Niels Ferguson it Niels Ferguson ... more details
In cryptography , differential equations of addition DEA are one of the most basic equations related to differential cryptanalysis that mix additions over two different groups e.g. addition modulo 2 sup 32 sup and addition over GF 2 and where input and output differences are expressed as XORs. Examples of Differential Equations of Addition Differential equations of addition DEA are of the following form math x y oplus x oplus a y oplus b c math where math x math and math y math are math n math bit unknown variables and math a math , math b math and math c math are known variables. The symbols math math and math oplus math denote addition modulo math 2 n math and bitwise exclusive or respectively. The above equation is denoted by math a, b, c math . Let a set math S a i, b i, c i i math is an integer less than math k math denote a system of math k math DEA where math k math is a polynomial in math n math . It has been proved that the satisfiability of an arbitrary set of DEA is in the P NP problem complexity class P when a brute force search requires an exponential time . Usage of Differential Equations of Addition Solution to an arbitrary set of DEA either in batch and or in adaptive query model was due to Souradyuti Paul and Bart Preneel . The solution techniques have been used to attack the stream cipher Phelix Helix . References Souradyuti Paul and Bart Preneel , Solving Systems of Differential Equations of Addition, ACISP 2005. http www.cosic.esat.kuleuven.be publications article 566.pdf Full version PDF Souradyuti Paul and Bart Preneel , Near Optimal Algorithms for Solving Differential Equations of Addition With Batch Queries, Indocrypt 2005. http www.cosic.esat.kuleuven.be publications article 587.pdf Full version PDF Helger Lipmaa, Johan Wall n, Philippe Dumas On the Additive Differential Probability of Exclusive Or. Fast Software Encryption FSE 2004 317 331. Crypto navbox block Category Cryptographic attacks Category Theory of cryptography Category Ciphers C ... more details
forschung pp experiments laser index e.html and the Phelix P etawatt H igh E nergy L aser for Heavy I on E x periments http www.gsi.de forschung phelix Anlagen index e.htm . A L arge A rea N eutron ... more details
Infobox lake lake name Birkenhead Lake image lake Birkenhead lake.JPG caption lake View of the Birkenhead Lake beach image bathymetry caption bathymetry location British Columbia coords coord 50 32 N 122 41 W region CA BC type waterbody name Birkenhead Lake type inflow Phelix Creek, Sockeye Creek, Tenas Creek, Tenquille Creek outflow Taillefer Creek catchment basin countries Canada length 6.4 width area 4.088 depth 21.6 max depth 38.4 volume residence time shore elevation islands cities Birkenhead Lake Provincial Park is a provincial park in British Columbia , Canada , located in the Lillooet Country region to the northeast of Pemberton, British Columbia Pemberton and immediately northwest of Birkenhead Peak and Gates Lake aka Birken Lake at the community of Birken, British Columbia Birken . History and conservation It was established in 1963 to provide a recreation and conservation area between the Pemberton Valley and Lillooet, British Columbia Lillooet and it has 79 vehicle accessible campsites and a lakeside beach area. The park s wildlife includes mountain goat s, American black bear black bear s and grizzly bear s while the lake itself is home to Rainbow Trout and Kokanee . The lake is also home to a protected species of Bull Trout, often mistaken for Dolly Varden. Location and access It is located 90 kilometres north east of Whistler, British Columbia Whistler , the last 21 kilometres of which are a non paved gravel road branching off the main paved from between Mount Currie, British Columbia Mount Currie and D Arcy, British Columbia D Arcy via Blackwater Creek , a tributary of the Gates River , a few miles northeast of the community of Birken, British Columbia Birken . Size Birkenhead Lake Provincial Park is 97.55 km . External links http www.env.gov.bc.ca bcparks explore parkpgs birkenhe.html Birkenhead Lake Provincial Park . BCGNIS 38859 Birkenhead Lake Park coord name Birkenhead Lake Provincial Park 50 35 N 122 45 W region CA display title Pacific Ra ... more details
, ISAAC cipher ISAAC , MUGI , Panama cipher Panama , Phelix , Pike cipher Pike , SEAL cipher SEAL ... 2 sup 82 sup rh Phelix Pre 2004 style background ffdddd up to 8 X86 architecture W sub x86 sub style ... more details
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