introduction to public key cryptography ppt

... Springer 2009 Chapter 3 Public- Key Cryptography and Key Management J. Wang. Computer Network Security Theory and Practice. Springer 2009 Why Public- Key Cryptography?  To use data encryption ... Concepts of Public- Key Cryptography  3.2 Elementary Concepts and Theorems in Number Theory  3.3 Diffie-Hellman Key Exchange  3.4 RSA Cryptosystem  3.5 Elliptic-Curve Cryptography  3.6 Key Distributions ... Concepts of Public -Key Cryptography 3.2 Elementary Concepts and Theorems in Number Theory 3.3 Diffie-Hellman Key Exchange 3.4 RSA Cryptosystems 3.5 Elliptic-Curve Cryptography 3.6 Key Distributions

Ngày tải lên: 17/02/2014, 14:20

... oxygen to a zinc atom d is beneficial to living things when it is in the stratosphere 10 Risk assessment: a is a method that is used to eliminate all risks b is a formal process used to evaluate ... Discussion Topics References and Recommended Reading 1ST REVISE 9955 © Jones & Bartlett Learning, LLC NOT FOR SALE OR DISTRIBUTION CHAPTER INTRODUCTION TO AIR POLLUTION SCIENCE I IntrODUCtIOn: hIStOrY ... humans Our human ancestors, who emerged only to million years ago, learned to use and eventually control fire Figure 1–3 The eruption of Mount St Helens in Washington, 1980 CDC Public Health Image

Ngày tải lên: 15/03/2014, 20:20

... 2 OUTLINE OUTLINE • Approaches to Message Authentication • Secure Hash Functions and HMAC • Public- Key Cryptography Principles • Public- Key Cryptography Algorithms • Digital Signatures • Key Management Henric ... Henric Johnson 1 Chapter3 Chapter3 Public- Key Cryptography Public- Key Cryptography and Message and Message Authentication Authentication Henric Johnson Blekinge ... algorithm Public and private key Ciphertext Decryption algorithm Henric Johnson 15 Encryption using Public- Key system Henric Johnson 16 Authentication using PublicKey... Requirements for PublicKey

Ngày tải lên: 29/03/2014, 16:20

... Introduction to Android for Developers Introduction Goals Introduction Goals • Get you Started with Android Development • Get the Environment Set Up and Working • Create Some Demo Apps (Tutorials) • Demonstrate ... Activities can be... to pass messages/store state • onFreeze() has outState bundle passed in • Data stored in outstate handed back to onCreate as the icicle bundle Storage / Persistence • ... Processes are started and stopped as needed to run an application's components • Processes killed to reclaim resources Life Cycle of an Application Activities • Designed to be reused and replaced

Ngày tải lên: 01/04/2014, 10:20

... pseudo-random number generators to compute estimates of expected values was touched on in Chapter 4 Here we pull these two threads together and introduce the Monte Carlo approach to valuing an ... (Wilmott, 1998) A smiley implied volatility is the wrong number to put in the wrong formula to obtain the right price. RICCARDO REBONATO (Rebonato, 1999) It is the strong opinion of the author that most ... Newton’s method for the implied volatility. Upper picture: iterates. Lower picture: errors. σ  = 0.15 in order to compute the Black–Scholes value for C, and then applied Newton’s method to see

Ngày tải lên: 21/06/2014, 04:20

... pseudo-random number generators to compute estimates of expected values was touched on in Chapter 4 Here we pull these two threads together and introduce the Monte Carlo approach to valuing an option ... (Wilmott, 1998) A smiley implied volatility is the wrong number to put in the wrong formula to obtain the right price. RICCARDO REBONATO (Rebonato, 1999) It is the strong opinion of the author that most ... Newton’s method for the implied volatility. Upper picture: iterates. Lower picture: errors. σ  = 0.15 in order to compute the Black–Scholes value for C, and then applied Newton’s method to see

Ngày tải lên: 21/06/2014, 09:20

... used to determine the solution are marked with filled circles Hence, our task is to find numbers to put into the points marked ◦ We will do this by using finite difference operators to form... ... intuition into a mathematical result. First we recall that to say a function f is monotonic increasing means x 1 ≤ x 2 ⇒ f (x 1 ) ≤ f (x 2 ). Similarly, to say a function f is monotonic decreasing ... greater power of today’s workstations can help to reduce the execution time required for achieving acceptable precision to the point that simulation can be used by financial traders to value derivatives

Ngày tải lên: 21/06/2014, 09:20

... 12 Toggle, 14 Tolerances, Dimensions, 142 Tool abbreviations, 50 Tool icons, 20, 26 Tool palettes, 10 Tool Palettes-All Palettes palette, 9, 301 Tool panels, 5 Tools, 20 Tooltip, 7 Torus tool, ... filled TiILEMODE – Set to 0 Paperspace enabled; set to 1 tiled viewports in Modelspace TOOLTIPS – Set to 0 no tool tips; set to 1 tool tips enabled TPSTATE – Set to 0 and the Tool Palettes window ... [...]... AutoCAD Help web page, 411 AutoCAD Message window, 149 AutoCAD shortcut, 4 AutoCAD SHX fonts, 146 AutoCAD Text Window, 144 AutoCAD window Close button, 30 Autodesk Design

Ngày tải lên: 01/07/2014, 19:20

... different objects into the 1st box, and then  n−a b  ways of putting b different objects into the 2nd and then one way to put the remaining objects into the 3rd box. Thus the total number of ways ... the amount of time to make the second bet is negligible,... (x))dx 0 To justify this argment we have to show that a(1 − F (a)) approaches 0 as a tends to infinity To see this, we note ... n/2 tends to infinity as n tends to infinity While the difference will be small compared to n/2, it will not tend to 0 On the other hand the difference Sn /n − 1/2 does tend to 0 5 k =

Ngày tải lên: 04/07/2014, 10:20

... indicating that a 1 went to a 2 , a 2 to a 1 , a 3 to a 4 , and a 4 to a 3 . Ifwealwayschoosethetoprowtobe1234then, to prescribe the permutation, we need only give the bottom row, with the understanding ... Birthday problem. We now turn to the topic of permutations. Permutations Definition 3.1 Let A be any finite set. A permutation of A is a one -to- one mapping of A onto itself. ✷ To specify a particular ... How many were going to St. Ives? (You need our principle only if you are not clever enough to realize that you are supposed to answer one, since only the narrator is going to St. Ives; the others

Ngày tải lên: 04/07/2014, 10:20

... IV054 In secret -key (symetric key) cryptography both sender and receiver share the same secret key. In public- key ryptography there are two different keys: a public encryption key and a secret ... Basic idea - example 3Public- key cryptograph y Public Establishment of Secret Keys Public Establishment of Secret Keys Main problem of the secret -key cryptography: a need to make a secure distribution ... Public- key cryptography 1 CHAPTER CHAPTER 5 5 : : P P ublic ublic - - key key cryptography cryptography Rapidly increasing needs for flexible

Ngày tải lên: 11/07/2014, 20:21

... does not seem to increase or decrease from one generation to the next. This was known at the time of Galton, and his attempts to explain this led him to the idea of regression to the mean. This ... themselves in some sense conformable to it. Galton invented a device known as a quincunx (now commonly called a Galton board), which we used in Example 3.10 to show how to physically obtain a binomial ... parent population is shown at the top of the figure, and the slanted lines are meant to correspond to the reversion effect. The offspring population is shown at the bottom of the figure. 11 ibid., p.

Ngày tải lên: 09/08/2014, 23:20

... elongational or compressive, and we need to extend our concept of strain to include “shearing,” or “distortional,” effects. To illustrate the nature of shearing distortions, first consider a square grid ... cross-sectional dimension b × h, are to be glued together using a tongue-and-groove joint as shown in Fig. 3, and we wish to estimate the depth d of the glue joint so as to make the joint approximately ... 1 See Module 1, Introduction to Elastic Response 2 Normal stresses act to pull parallel planes within the material apart or push them closer together, while shear stresses act to slide planes

Ngày tải lên: 11/08/2014, 09:20

... was effectively added to the crack length, leading to disaster. Modern aircraft are built with this failure mode in mind, and have “tear strips” that are supposedly able to stop any rapidly growing ... multiple small cracks to link up to form a large crack. A great deal of attention is currently being directed to protection against this sort of “multi-site damage.” It is important to realize that ... This critical stress intensity factor is then a measure of material toughness. The failure stress σ f is then related to the crack length a and the fracture toughness by σ f = K Ic α √ πa (5)

Ngày tải lên: 11/08/2014, 09:21

... An Introduction to Visual Basic NET 11 The Toolbox Window  The Toolbox window, or toolbox, contains the tools and other... PictureBox tool Tutorial 1: An Introduction to Visual ... Tutorial 1: An Introduction to Visual Basic .NET 1 An Introduction to Visual Basic .NET Tutorial 1: An Introduction to Visual Basic .NET 2 Creating a Windows-Based ... application Tutorial 1: An Introduction to Visual Basic NET 28 The Code Window Class definition Code Editor window tab Event procedure Tutorial 1: An Introduction to Visual

Ngày tải lên: 24/10/2014, 10:04

... Times 51 MODERN PUBLIC HEALTH IS BORN 51 Public Outcry 51 Public Response to Infectious Disease Outbreaks 53 Public Response to Injuries and Noninfectious Diseases 54 SUCCESS OF PUBLIC HEALTH MEASURES 56 ... of strategies to achieve public health goals are related to their effectiveness, efficiency, and equity The purpose of this book is to open the field of public health to those new to it Many complexities ... 196668 This is sample from Introduction to Public Health Promises and Practices, Second Edition Visit This Book’s Web Page / Buy Now / Request an Exam/Review INTRODUCTION TO PUBLIC HEALTH © Springer

Ngày tải lên: 15/11/2017, 20:00

... Public key cryptography using discrete logarithms Multiplicative cyclic group • Let G be a finite multiplicative ... curve over the Reals Group properties Elliptic curves modulo a Prime Example 13 points in total An Example to compute doubling ElGamal encryption and decryption using elliptic curve

Ngày tải lên: 20/12/2017, 08:50

... https://fb.com/sinhvienzonevn Public Key Cryptography  public- key/ two -key/ asymmetric cryptography involves the use of two keys: • a public- key, which may be known by anybody, and can be used to encrypt messages, ... https://fb.com/sinhvienzonevn Why Public Key Cryptography?  Developed to address two key issues: • key distribution – how to have secure communications in general without having to trust a KDC with your key • digital ... Cryptography and Network Security Chapter Public Key Cryptography Lectured by Nguyễn Đức Thái SinhVienZone.com https://fb.com/sinhvienzonevn Outline  Number theory overview  Public key cryptography

Ngày tải lên: 30/01/2020, 21:04

... is 10 (略) Router#terminal history size ? <0-256> Size of history buffer Router#terminal history size 25 Router#sh terminal (略) History is enabled,history size is 25 (略) Gather ... 1.show history:显示最后输入的 10 条命令,默认是 10 条,可以修改该值 2.terminal history size:修改显示最后输入过的的命令的数量,默认是 10 条,最大是 256 条 3.show terminal:显示命令历史缓存大小,如下: Router#sh terminal (略) History is enabled,history size ... connector Bring Up an Interface 打开和关闭 1 个接口,分别使用 shutdown 和 no shutdown 命令,当你关闭某个接口的时候,使用 sh interfaces 命令可以查看接口状态,并且你将看到以下输出: Router#sh int e0 Ethernet0 is administratively down,line protocol...

Ngày tải lên: 10/12/2013, 16:15

... collaboration needs. 28 Module 1: Introduction to SharePoint Portal Server Review  Common Obstacles to Implementing an Effective Document Management Solution  Introduction to SharePoint Portal Server  Using ... Portal Server to your own Web site. iv Module 1: Introduction to SharePoint Portal Server Module Strategy Use the following strategy to present this module:  Common Obstacles to Implementing ... PowerPoint. Module 1: Introduction to SharePoint Portal Server 15  Accessing external content. You can add content sources to a workspace to provide access to external information,...

Ngày tải lên: 10/12/2013, 16:15