public key cryptography in a nutshell

... but temporary has no data to send IN DATA x ACK Data Error STALL NAK In Token Error Key OUT DATA x Host Function ACK NAK STALL Data Error Token Packet • Data Packet Handshake Packet OUT: ... a DATA packet containing the control data to be sent, a stall packet indicating the endpoint has had a error or a NAK packet indicating to the host that the endpoint is working, ... data packets each capable of transmitting 0 to 1023 bytes of data.  Data0  Data1 Data packets have the following format Sync PID Data CRC16 EOP  Handshake Packets There are three type of handshake...

Ngày tải lên: 13/12/2013, 00:15

... that takes a byte as an input, uses its first four bits as the row index and the last four bits as the column index, and outputs a byte using a table-lookup at the S-box  Let A be a state matrix. ... Operations:  substitute-bytes (sub)  Non-linear operation based on a defined substitution box  Used to resist cryptanalysis and other mathematical attacks  shift-rows (shr)  Linear operation for producing diffusion  mix-columns ... 2 Outline  2.1 Data Encryption algorithm Design Criteria  2.2 Data Encryption Standard  2.3 Multiple DES  2.4 Advanced Encryption Standard  2.5 Standard Block-Cipher Modes of Operations  2.6...

Ngày tải lên: 17/02/2014, 14:20

... Select a positive integer d with 1 < d < φ(n) and gcd(d, φ(n)) = 1 Trang 28RSA Parameter Attacks Attacks taking advantage of inappropriately chosen parameters  Try all possible parameters ... Trang 1Chapter 3 Public-Key Cryptography and Key Management Trang 2Why Public-Key Cryptography? To use data encryption algorithms in network communications, all parities must first agree ... wants to use Bob’s public key: Trang 37 Alice: Sends to Bob CA1(KAu) and CA2(KuCA1) A CA network consisting of two CAs that can verify each other’s public key Trang 38A CA network consisting...

Ngày tải lên: 17/02/2014, 14:20

... analyzed, and disseminated among other researchers Astronomical data are almost always saved in some digital... weaker than in A stars, but additional lines appear, and are due to transitions in ... continues in K stars where, in addition, molecular “bands” begin to appear Such bands are actually numerous adjacent absorptions... are almost always observed by detecting and measuring electromagnetic ... when mathematical symbols, rather than numbers, appear on both sides) means some approximation has been made, and in a numerical relation it means an accuracy somewhat worse than ten percent. A “∝”...

Ngày tải lên: 05/03/2014, 22:21

... clinical faculty with the following:Essential Clinical Materialscon-A Clinical Packet Clinical course syllabus Clinical Practicum or Academic Calendar ScheduleClinical Assignment Sheet Clinical Evaluation ... question that you will find amongthese pages a wealth of pragmatic, “real-life” information onthe clinical teaching process.I want to thank Susan Stabler Haas and Eden Zabat Kanfor asking me to ... Stabler-Haas has also earned a PsychiatricClinical Nurse Specialist designation from the University of Pennsyl-vania, and has been practicing as a licensed Marriage and FamilyTherapist Trang 4FAST FACTS...

Ngày tải lên: 06/03/2014, 12:21

... necessary initialization. In C# and Visual Basic, this entry point is always a static method called Main.It doesn’t matter which class this is defined in, although Visual Studio always makes it a ... initialization takes place inside individual forms. All that happens in Main is an instance of the program’s main user interface (Form1) is created, and control is then passed to the framework’s Application ... the kind of input that all Windows applications are required to handle, such as mouse clicks Example 3-2. An application entry point in VB <STAThread> Public Shared Sub Main( ) Application.Run(new...

Ngày tải lên: 25/03/2014, 10:38

... optionallycreate additional internal castLibs, which are private to a single Director movie (although a MIAW can access the main movie’s cast using tell the Stage) External castLibs are often linked (attached) ... cast members) within a cast library Director supports both internal and external castLibs A movie always contains atleast one internal castLib, which may have zero cast members You can optionallycreate ... the commands and operations that control the Stage and manipulate Movies-in-a-Window Itcovers panning and scaling window views, communicating between windows,and setting window types and window...

Ngày tải lên: 25/03/2014, 10:50

... products are claimed as trademarks Wherethose designations appear in this book, and O’Reilly & Associates, Inc was aware of atrademark claim, the designations have been printed in caps or initial ... ordi-Message window or store it in a variable (a container for data) Below, the result of the calculation is stored in a variable that is arbitrarily named myValue (see “Variable Storage Classes and ... character) within quoted strings (see Chapter 7, Strings) Do not put anything, even a space, on the same line after a continuation character Director ignores leading spaces and automatically indents...

Ngày tải lên: 25/03/2014, 10:50

... share a key • Message Authentication without Message Encryption – An authentication tag is generated and appended to each message • Message Authentication Code – Calculate the MAC as a function ... Approaches to Message Authentication • Secure Hash Functions and HMAC • Public-Key Cryptography Principles • Public-Key Cryptography Algorithms • Digital Signatures • Key Management Trang 3• Requirements ... 20Requirements for Public-Key Cryptography 4 Computationally infeasible to determine private key (KRb) knowing public key (KUb) 5 Computationally infeasible to recover message M, knowing KUb and ciphertext...

Ngày tải lên: 29/03/2014, 16:20

... after assigning mandatory and optional arguments, they are assigned to arg as an array If there is no remainder, empty array is assigned to arg Trang 39In Ruby, methods can be defined that are associated ... integer Any kind of object may be stored in an array, and any given array can store a heterogeneous mix of object types Arrays grow as you add elements Arrays can be created using array.new or via ... you can tell what kind of variable is being used Instance variables begin with @ Uninitialized instance variables have the value nil (and produce warnings with the -w option) Class Variables...

Ngày tải lên: 29/03/2014, 19:20

... Great Plains area According to Alway, the country is in appearance very much like western Nebraska and Kansas; the climate is distinctly arid, and the precipitation comes mainly in the spring ... original cost of the farm. [...]...The Indian Head farm An equally instructive record is furnished by the experimental farm located at Indian Head in Saskatchewan, Canada, in the northern part ... from March 1 to the July harvest, and all of this in March, as against 7.18 inches during the same... +Snowfall not included This has varied from 2.3 to 1.3 inches of water The annual rainfall...

Ngày tải lên: 29/06/2014, 15:20

... i Ł n Minimums are in points (discontinuation points) sawtooth curves Trang 20Breaking knapsackWe need to find out t and m such that: a i = b i t mod m and (a1,…,an) is a superincreasing vector ... superincreasing vector, have [dn] – 1 – n + i bits. (This implies that A is a superincreasing vector and super-(2) Such a pair is called a trapdoor pair To find a trapdoor pair one can proceed as follows: ... minima are close to one another Thus, instead of trying to find t itself, we try to find out “accumulation points'' of the minima of bi-graphs This amounts to constructing a small interval containing...

Ngày tải lên: 11/07/2014, 20:21

... 󳻴󲛀󲋛 Happiness in a Nutshell writtenandillustratedby AndrewMatthews SeashellPublishers AUSTRALIA 󳉩󰽮󲗞󲮉   U suallythebestplace tomakeanewstart iswhereyouare Beforechangingyouraddress ... CopyrightbyAndrewMatthews andSeashellPublishers Publishedby SEASHELLPUBLISHERSPTYLTD POBoxTrinityBeach QueenslandAUSTRALIA Fax Websitewwwseashellcomau Emailinfoseashellcomau ... thislittlebookandthankyoufor editingandputtingittogether   󰄌  󰛗󱢉󲛕 Happiness in a Nutshell  󰛗󱢉󲛕   HappinessinaNutshell...

Ngày tải lên: 01/08/2014, 22:20

... is a novel in miniature It has all the elements of a novel but in a smaller proportion • It has a plot • It has fewer characters • It has a climax Characteristics of the short story • It has a ... was a major participant The wars killed a dozen of millions of people in Europe and Britain had to suffer heavy losses of human lives and property The world wars’ influence to Britain Social ... worked as a sailor and then captain on British ship • In 1886, he became a Bristish subject His contribution to British literature • In 1894, Conrad gave up the sea and decided on a literary career...

Ngày tải lên: 10/10/2013, 23:11

... Madrid Real Madrid Real Madrid Real Madrid La Galaxy La Galaxy Milan La Galaxy Milan La Galaxy La Galaxy Manchester United Real Madrid LA Galaxy Milan UEFA Cup European Cup England 1995-1996 ... –boggling $40 million After a disappointing season with Real Madrid, David Beckham hope he would lead England to victory in Euro 2004 but again he was unable to live his dream of winning a tournament ... Madrid in 2003, where he remained for four seasons, winning the La Liga Championship in his final with the club In January 2007, it was announced that Beckham would leave Real Madrid for the Major...

Ngày tải lên: 31/05/2014, 22:27

... lemon jam, marmalade Japan, kiwi jam processing style Japanese cuisine weird mouth Manufacturers that also use materials is the new jam such as jam lotus root, grapefruit peel marmalade, chestnut ... planned to reach 2,400 tons and even then had to but because material for production and package has passed -When Kinh Do wants to bring out a new cake, this company is always careful in market ... success and failure Having a clear strategy is crucial to both a successful launch and managing the product in the early stages of its lifecycle Accordingly, in order to have development, testing and...

Ngày tải lên: 20/06/2014, 16:07

... No.4 Airplane The plane likes a giant bird It is one of the most modern and the safest means of transport in the world No.3 SUBWAY( metropolitan) in the world, in many countries, Subway has become ... ion f or be aut if ul pict ure qualit y, clarit y and re alis m with the ability to connect to the internet, you can use a smart tv as a computer to talk or chat with your friends and your loved ... digital cameras it saved the best image clarity, honesty and the most vivid help us save the best image No.6 Telephone NO.5 Smart TV A s mart t v can jus t conne ct t o t he ne t work cable , sat...

Ngày tải lên: 25/11/2014, 19:37

... attitude can make a difference to both you and their business Curious Appriciative Flexible Hopeful Resilient • Key massages • Benefits Curious • Questions Key massages Benefits Appriciative Questions ... Questions • Key massages Hopeful • Benefits • Questions Flexible • Key massages • Benefits • Questions Key massages Resilient Questions Benefits INCLUSION It’s not what happens to you that determines ... happens to you that determines your lives, it’s what you make of what happens – your attitude! That was all of our presentation, thanks for your listening!!!!! ...

Ngày tải lên: 01/12/2014, 16:45