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RSA CSE RSA enVision Essentials

RSA certified techniques Engineer (RSA/CSE) | killexams.com real Questions and Pass4sure dumps

This seller-certain Certification is offered by:RSA, The security Division of EMCBedford, MA USAPhone: 781-301-5000Email: This e mail address is being blanketed from spambots. You necessity JavaScript enabled to view it.

ability stage: Intermediate                          popularity: Discontinued

low-budget: $a hundred and fifty (shortest song)               

abstract:For safety professionals who support, install or configure industry safety methods using RSA items. This includes SecurID, enVision, access supervisor and Digital certificate answer.

initial requirements:This software has been discontinued.You endure to pass the RSA systems Engineer exam to your chosen tune ($150) and sign the RSA certified security professional contract. There are a pair of tracks to pick from: SecurID, enVision, access manager and Digital certificate solution. working towards is purchasable however not required. This application has been discontinued.

continuing necessities:Recertification is required for every predominant product unencumber and for pellucid factor releases that RSA deems sufficiently important.

Offline elements:associated counseled (but not required) working towards courses are available through RSA.

See indelicate Rsa Certifications

dealer's web page for this certification


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RSA 2014: four luminaries argue underestimated protection threats | killexams.com real Questions and Pass4sure dumps

(This weblog status up was written by using Christina Torode, Editorial Director of SearchCIO Media neighborhood)

I spent a whirlwind travel to the RSA conference this week in San Francisco putting out within the assistance programs protection affiliation (ISSA) booth, catching up with the group’s participants as they popped in. They observed many things: cyber war, the want for collective safety intelligence, how vital being a member of a gaggle equivalent to ISSA is to a career, Edward Snowden, how tons apparatus entry protection companies should provide the govt, how threats are getting increasingly political in nature.

This post would be extraordinarily long if I went into indelicate of the discussions, but listed below are few snippets of the conversations where ISSA members and industry luminaries describe threats the safety profession deserve to pay extra consideration to:

Marcus Ranum, CSO of Tenable and developer of the primary commercial firewall“The threats aren’t truly fresh or emerging ones. We’re indelicate the time up in opposition t errors they made 10 or 15 years in the past. We’re really simply now starting to contend with complications raised through allotted computing, which is configuration of sad. They haven’t even gotten to transitive believe. Hackers are starting to be mindful transitive endure self-possession and we’re going to endure a significant issue when that occurs.”

Howard Schmidt, professor at Idaho condition university, advisor with Ridge-Schmidt Cyber and former White condo cyber advisor for Presidents George W. Bush and Barack Obama“The cellular ambiance. When there were simply just a few BYO instruments, there wasn’t lots of connectivity so they weren’t truly a hazard to the atmosphere. Now virtually everything has an IP address and is linked to a network to network through the home or travail environment. They in fact haven’t faith that through. Some application is neatly vetted, but other software may besides be downloaded with malware, that piece of added piece of added utility that may draw out your PII.

What individuals pay even much less attention to is indelicate the instruments in the home. The television is fitting an internet gadget trying to maneuver access to lots of issues. optimistically they received’t travel down the path [with home devices such as the TV] and do the identical mistakes we've with other programs. They comprehend that there are vulnerabilities, they should gain them fastened and travel to the manufacturer and bid ‘It’s exquisite that you endure this application, but it additionally exposes me.'”

Dave Cullinane, former eBay CISO and founder of SecurityStarfish“The stage of assault sophistication is getting particularly frightening. Ebay turned into a know-how company so they had the components and sort of funds to be able to access shared assistance and intelligence on what’s going on across the industry and businesses. wee and mid-dimension corporations don’t endure these resources. access to respectable intelligence [analytics] on what to search for and what to accomplish about [a security threat] helps you invest the rectify means.

one other locality that may serve is application-defined perimeters. Coca-Cola and the Cloud safety Alliance are working with open requisites, some technology that has been round for a while, that has the capacity to dispose of the erudition for big agencies of attacks.

an additional advantageous measure? if your purchasers pose a danger to your own safety, drill them the pass to cover themselves and provides them the tools to accomplish it. Ebay gave its clients Microsoft security essentials, which allowed their purchasers to uncover lots of hidden threats.”

Gene “Spaf” Spafford, professor of computing device science at Purdue school“I don’t believe I’ve considered the comfort that i would trust a fresh assault. lots of the things taking status are assault technologies and behaviors which endure been common about for decades, however practitioners within the sphere these days don’t learn about them. actually plenty of agencies which endure been attacked haven't afflicted to do applicable investments in security, so when these attacks ensue indelicate and sundry goes ‘wow that’s a surprise,’ however it isn’t in reality.

The fresh collection of attacks on POS terminals to bring together credit card numbers, that’s not new. It’s malware, going after very own tips and these groups had been ignoring the warnings.

What they are on account that’s a puny bit diverse is higher scale and a bit extra politically prompted aspect to assaults. The Syrian electronic military, for instance. those are demanding because they don’t endure a coordinated overseas response to the wide scale cybercrime and the politically motivated habits.”

Christina Torode oversees insurance and particular tasks for SearchCIO.com, SearchCIO-Midmarket.com and SearchCompliance.com. She has been a excessive-tech journalist for more than a decade. before joining TechTarget, she became a reporter for technology exchange e-book CRN, masking a variety of beats together with protection, networking, telcos and the channel. She additionally frolicked as a company reporter and editor with Eagle Tribune Publishing in japanese Massachusetts.


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The Computer Security Bookshelf, fragment 1 | killexams.com real questions and Pass4sure dumps

According to recent IT employment surveys, certification studies, and polls of IT professionals, system and network security are shaping up as "the" core competencies worthy of cultivation. To serve you explore this fascinating field, and prize its breadth and depth, Ed Tittel has status together a collection of two articles that together cover information security (or infosec, as it's sometimes called) as completely as possible. indelicate the books in here are worth owning — though you may not necessity to acquire indelicate books on identical or related topics from these lists. Together this compilation documents the best-loved and respected titles in this field. This is the first of two parts, so be positive to check out its successor epic as well.

Editor's Note: This article was fully revised and updated in December of 2004.

Like this article? They recommend 

In this story, I present the first installment of a two-part epic on computer security books, in which I recommend titles that are bound to be noteworthy for those with an interest in this field. In my particular case, I'm noiseless reading and studying to Take the Certified Information Systems Security Professional (CISSP) exam and digging my pass through the most useful elements of a big corpse of travail on this matter matter.

This list and its companion (" The Computer Security Bookshelf, fragment 2") emerged from the following research:

  • I drew on my own reading in this sphere since the early 1990s. Currently, my bookcases already comprehend 3-plus shelves of security books.
  • I consulted every expert security reading list I could find, including recommended reading for a broad purview of security certifications, where available.
  • I asked my friends and colleagues who travail in this sphere to provide feedback on my initial findings and to hint additional entries.
  • Expert and ordinary reader reviews—and in about half the items mentioned here, my own personal experience—show me that there's an extraordinary number of truly outstanding books in this field. If you find yourself reading something you don't dote or can't understand on this topic, don't be afraid to investigate the alternatives. There are plenty of them!

    To avoid the potential unpleasantness involved in ranking these titles, I present them in alphabetical order indexed by the primary author's ultimate name.

    Adams, Carlisle and Steve Lloyd: Understanding PKI: Concepts, Standards, and Deployment Considerations, 2e, Addison-Wesley, 2002, ISBN: 0672323915.Covers the basic principles needed to understand, design, deploy and manage safe, secure PKI installations and information related to the issuance, use, and management of digital certificates. Provides special accent on certificates and certification, operational considerations related to deployment and exercise of PKI, and relevant standards and interoperability issues. A considerable overall introduction to the topic of PKI that's not too deeply technical.

    Allen, Julia H.: The CERT usher to System and Network Security Practices, Addison-Wesley, 2001, ISBN: 020173723X.Here, the author distills numerous best practices and recommendations from the Computer Emergency Response Team (CERT) and its vast corpse of tang with computer security incidents, exploits, and attacks. advice is couched generically rather than in terms of particular platforms or applications, so some translation will be necessary to implement that advice. Topics covered comprehend hardening systems and networks, detecting and handling break-ins or other types of attack, and designing effectual security policies.

    Bishop, Matt: Computer Security: expertise and Science, Addison-Wesley, 2003, ISBN: 0201440997.Professor Matt Bishop packs his security expertise into this well-written, comprehensive computer security tome. This reserve has been successfully tested at advanced undergraduate and introductory graduate levels, and can be a useful addition to security certification courses. Topics covered comprehend the theoretical and practical aspects of security policies, models, cryptography and key management, authentication, biometrics, access control, information stream and analysis, and assurance and trust.

    Bosworth, Seymor and Michael E. Kabay: Computer Security Handbook, 4e, John Wiley & Sons, 2002, ISBN: 0471412589.The fourth edition of a well-liked common computer security reference, this version provides updates to a considerable deal of useful and timely information. Essentially a series of articles on a broad purview of topics, this reserve covers the full spectrum of well-known security matters reasonably well. Chapters are lengthy, detailed, and full of information. They cover well-known management issues such as security policy, legal issues, risk management, and computer crime; basic safeguards such as contingency planning, cataclysm recovery, security auditing, and application controls; and deal with indelicate kinds of protection topics from hardware, to software and information security, ensuring security of data, records, and forms, encryption, using contractors and services, and applying security to PCs.

    Caloyannides, Michael A.: Computer Forensics and Privacy, 2e, Artech House, 2004, ISBN: 1580538304.A technical yet readable title that addresses privacy rights for individuals who seek to protect personal or confidential information from unauthorized access. Includes coverage of computer forensic tools and techniques, as well as methods individuals might exercise to combat them. Covers exercise of disk-wiping software, methods to achieve anonymity online, techniques for managing security, and confidentiality, encryption, wireless security, and legal issues.

    Cheswick, William R. and Steven M. Bellovin: Firewalls and Internet Security, Addison-Wesley, 1994, ISBN: 0201633574.I comprehend this title because of its considerable coverage of IP security topics and its excellent analysis of a computer bombard and its handling. The firewall coverage is superb; but the authors' coverage of Internet security topics and techniques is besides timely, interesting, and informative.

    Cole, Eric: Hackers Beware: Defending Your Network From The Wiley Hacker, fresh Riders, 2001, ISBN: 0735710090.A star instructor at the SysAdmin, Audit, Network, Security (SANS) Institute, Cole distills his extensive erudition and tang in this book. This reserve provides ample coverage of both repulsive and defensive tools in the computer security arsenal, as well as a considerable overview of bombard strategies, best security practices, security concepts and terminology. Thus, the reserve combines a useful examination of common vulnerabilities and attacks, with explanations that account for how those vulnerabilities may be exploited and attacks successfully waged. To the profit of administrators and would-be security professionals, it besides covers how to detect and respond to attacks when necessary, and to avoid or deflect them where possible.

    Cooper, imprint et al.: Intrusion Signatures and Analysis, fresh Riders, 2001, ISBN: 0735710635.In this book, numerous network and system attacks are documented and described, along with methods that administrators can exercise to recognize ("identify a signature," as it were) and deal with such attacks. Aimed in fragment at helping individuals seeking the GIAC Certified Intrusion Analyst (GCIA) certification, the reserve explores a big catalog of attacks, documents the tools intruders exercise to mount them, and explains how to maneuver or prevent them. By working from protocol traces, or intrusion detection or firewall logs, the reserve besides teaches skills for recognizing, analyzing, and responding to attacks.

    Crothers, Tim: Implementing Intrusion Detection Systems : A Hands-On usher for Securing the Network, Wiley, 2002, ISBN: 0764549499.Though there ae lots of books that talk about intrusion detection systems, this one stands out for several reasons. First, it's short, concise, and direct: a considerable introduction to the topic. Second it's leavened with worthy advice and best practices on deploying and using IDS technology, and includes considerable diagrams and explanations. It's probably not the only reserve you'll want on this topic, but it's a considerable status to start digging in.

    Garfinkel, Simson, Alan Schwartz, and Gene Spafford: Practical Unix and Internet Security, 3e, O'Reilly & Associates, 2003, ISBN: 0596003234.Newly updated, this reserve remains one of the best common security administration books around. Starts with the fundamentals of security and Unix, works its pass through security administration topics and techniques clearly and systematically, and includes lots of considerable supplementary information that's noiseless quite useful today. While it's focused on a particular operating system and its inner workings, this reserve will be useful even for those who may not rub shoulders with Unix every day.

    Garfinkel, Simson et al: Web Security, Privacy, and Commerce, O'Reilly & Associates, 2002, ISBN: 0596000456.Tackles the real root causes behind well-publicized attacks and exploits on Web sites and servers perquisite from the front lines. Explains the sources of risk, and how those risks can be managed, mitigated, or sidestepped. Topics covered comprehend user safety, digital certificates, cryptography, Web server security and security protocols, and e-commerce topics and technologies. A considerable title for those interested in Web security matters.

    Gollman, Dieter: Computer Security, John Wiley & Sons, 1999, ISBN: 0471978442.Surveys computer security topics and issues from a broad perspective starting with the notion of security models. It besides covers what's involved in security operating and database systems, as well as networks. Widely adopted as an upper-division undergraduate or introductory graduate flush textbook in computer science curricula. besides includes a comprehensive bibliography (though a bit dated now).

    Harris, Shon: CISSP All-in-One Exam Guide, 2e, Osborne McGraw-Hill, 2003, ISBN: 0072229667.There are numerous other titles about the CISSP exam available, but this is the only one to gain elevated ratings from both security professionals and from ordinary reserve buyers. Covers the 10 domains in the Common corpse of erudition (CBK) that is the focus of the CISSP exam, but besides includes lots of examples, case studies, and scenarios. Where other books summarize, digest, and condense the information almost into almost unrecognizable forms, this reserve is well written, explains most key topics quite well, and lays out the landscape that the CISSP covers very well. Those with infosec training or backgrounds may be able to exercise this as their only study resource, but those who lack such background will want to read more widely. A value-add to this reserve are the accompanying simulated practice exams and video training on the CD.

    Kahn, David: The Codebreakers: The Comprehensive History of covert Communication from Ancient Times to the Internet, Scribner, 1996, ISBN: 0684831309.If you're looking for a single, comprehensive, and exhaustive treatment of the matter of cryptography, this is the reserve for you. Kahn starts with simple substitution ciphers that travel indelicate the pass back to the invention of writing in the Tigris/Euphrates cultures to techniques used in the present day. be warned that this reserve is rather more historical and descriptive in its coverage than it is a how-to book, but it is absolutely the perquisite status to start for those who are interested in this topic and who want to gain the best possible background before diving into more technical detail.

    Kruse, Warren G. and Jay Heiser: Computer Forensics: Incident Response Essentials, Addison-Wesley, 2001, ISBN: 0201707195.A current computer security buzzword is "incident response" or "incident handling," sense the activities involved in detecting and responding to attacks or security breaches. This reserve describes a systematic approach to implementing incident responses, and focuses on intruder detection, analysis of compromises or damages, and identification of possible culprits involved. The accent is as much on preparing the "paper trail" necessary for successful prosecution of malefactors as it is in exploring the principles involved in formulating incident response teams, strategies, security enhancements, and so forth. Coverage extends to analysis of bombard tools and strategies, as well as monitoring and detecting tools and techniques. An bewitching read, and a very useful book.

    McClure, Stuart, Joel Scambray, and George Kurtz: Hacking Exposed: Network Security Secrets & Solutions, 4e, Osborne McGraw-Hill, 2003, ISBN: 0072227427.One of the best-selling computer security books of indelicate time, this latest edition updates the authors’ catalog of hacker tools, attacks, and techniques with a keen eye on striking the perquisite defensive posture. By operating system and character of attack, readers gain a chance to learn about what tools are used for attacks, how they work, what they can reveal or allow, and how to defend systems and networks from their illicit use. The fourth edition includes only rudimentary Windows XP security issues and answers. A companion CD ROM includes tools, Web pointers, and other text supplements. Readers looking for Windows 2003 and XP SP2 coverage are advised to wait for the fifth edition, due out in April, 2005.

    Nash, Andrew et al.: PKI: Implementing & Managing E-Security, Osborne McGraw-Hill, 2001, ISBN: 0072131233.Prepared by a team of authors at leading security solid RSA Technologies, this reserve explores the security needs that motivate deployment and exercise of PKI, as well as the underlying concepts, terminology, tools, and techniques related to the subject. Making excellent exercise of diagrams to illuminate case studies and proposed configurations, the besides addresses key concepts including managing keys and certificates, authentication, and trust models in considerable detail. besides addresses how to cipher ROI on PKI investments.

    Northcutt, Stephen et al.: Inside Network Perimeter Security: The Definitive usher to Firewalls, Virtual Private Networks (VPNs), Routers, and Intrusion Detection Systems, fresh Riders, 2002, ISBN: 0735712328.Readers will dote the broad yet deep coverage this reserve offers regarding indelicate aspects of network perimeter protection. The authors skillfully drill the reader how to "think" about security issues—threats, hack attacks, exploits, trends, and so on—rather than handhold the reader with step-by-step solutions to specific problems. This approach helps network security professionals learn how to exercise a variety of tools, resolve the results, and do effectual decisions. Topics covered comprehend designing and monitoring network perimeters for maximum security, firewalls, packet filtering, access lists, and expanding or improving the security of existing networks. Because the reserve was developed jointly with SANS Institute staff, it can be used as a study aid for individuals preparing for GIAC Certified Firewall Analyst (GCFW) certification.

    Northcutt, Stephen and Judy Novak: Network Intrusion Detection, 3e, fresh Riders, 2002, ISBN: 0735712654.A short but information-packed reserve that works it pass through numerous real, documented system attacks to drill about tools, techniques, and practices that will aid in the recognition and handling of so-called "security incidents." The authors do extensive exercise of protocol traces and logs to account for what kindhearted of bombard took place, how it worked, and how to detect and deflect or foil such attacks. Those who travail through this book's recommendations should be able to foil the attacks it documents, as they learn how to recognize, document, and respond to potential future attacks. One of the best books around for those who must configure router filters and responses, monitor networks for signs of potential attack, or assess possible countermeasures for deployment and use.

    Peltier, Thomas R.: Information Security Risk Analysis, Auerbach, 2001, ISBN: 0849308801.If there's one key activity that captures the essence of the discipline involve in practicing systems and network security, it's the analysis of risks and related exposures that properly precede the progress of any well-formulated security policy. The techniques introduced in this reserve permit its readers to recognize and status expense tags on potential threats to an organization's computer systems, be they malicious or adventitious in nature. Covers well-known techniques such as FRAP (facilitated risk analysis process) and PARA (practical application of risk analysis), as it takes a step-by-step approach to identify, assessing, and handling potential sources of risk. The second edition of this reserve is scheduled for release in the Spring of 2005.

    Rada, Roy: HIPAA @ IT Reference, 2003 Edition: Health Information Transactions, Privacy, and Security, Hypemedia Solutions, 2002, ISBN: 1901857174.HIPAA stands for the Health Insurance Portability and Accountability Act of 1996, a maze of US Government regulations that circle the electronic packaging, storage, use, and exchange of medical records. Because HIPAA has a surprising gain into the private sector (it affects any industry that handles medical records in any way), this topic receives coverage on most security certification exams and is of concern to IT professionals in general. This reserve is designed as a reference for such professionals and succeeds admirably in its purpose; basically, it condenses and explains what it takes the US Government thousands of pages to document in under 300 pages.

    Russell, Deborah and G. T. Gangemi: Computer Security Basics, O'Reilly & Associates, 1991. ISBN: 0937175714.In a pellucid sign that this reserve lives up to its title, it's noiseless around (and in print) over 10 years after its initial release. An excellent primer on basic security concepts, terminology, and tools, the reserve besides covers key elements of the US Government's security requirements and regulations as well. Although dated, it besides provides useful coverage of security devices, as well as communications and network security topics. Many experts recommend this title as an example "my first computer security book."

    Schneier, Bruce: Applied Cryptography, John Wiley & Sons, 1995, ISBN: 0471128457.Although there are many worthy books on cryptography available (others appear in this list) not anyone of the others approaches this one for readability and insight into the matter matter. This reserve covers the entire topic as completely as possible in a lone volume, and includes working code examples for most encryption algorithms and techniques (which makes an bewitching alternative to more common mathematical formulae and proofs so common to this subject). Even so, the reserve is informative, useful, and bewitching even for those who accomplish not read the code.

    Schneier, Bruce: Secrets and Lies: Digital Security in a Networked World, John Wiley & Sons, 2004, ISBN: 0471453803.A well-known and respected device in the sphere of computer and network security, Schneier brings his unique perspective to the broad topic of digital security matters in this book. He manages to be informative and interesting, often funny, on topics normally known for their soporific value. He besides presents an bewitching philosophy on "security as a perspective or a condition of mind" rather than as a recipe for locking intruders, malefactors, or others out of systems and networks. Along the way, he besides presents a useful exposition of the tools, techniques, and irony games hackers exercise to penetrate systems and networks around the world. One of the best possible choices on this list for "my first computer security book"—except that other titles (even those on this list) will endure a mighty tough act to follow!

    Strassberg, Keith, Gary Rollie, and Richard Gondek: Firewalls: The Complete Reference, Osborne McGraw-Hill, 2002, ISBN: 0072195673.In keeping with its name, this usher truly offers complete coverage of firewall topics, from design, to installation and configuration, and finally, maintenance and management. In addition, the authors tender handy tips on product evaluation—valuable information in this locality of high-speed, high-cost hardware. Firewalls discussed in-depth comprehend Check Point Firewall-1, Cisco Private Internet Exchange (PIX), NetScreen, SonicWall, and Symantec Enterprise Firewall 6.5, in addition to Microsoft Internet Security and Acceleration (ISA) Server 2000.

    The Honeynet Project: Know Your Enemy: Learning About Security Threats, 2e, Addison-Wesley, 2004, ISBN: 0321166469.In computer security jargon, a honeypot is a system designed to inveigle and snare would-be intruders; by extension, a honeynet is a network designed to accomplish the selfsame thing. The original Honeynet Project involved two years of pains from security professionals who set up and monitored a set of production systems and networks designed to be compromised. The pedigree of the group involved is stellar, and so are their results in this second edition, which shares the results of their continuing and detailed observations of attacks and exploits, and their recommendations on how to deal with such phenomena.

    Zwicky, Elizabeth D. et al.: edifice Internet Firewalls, 2e, O'Reilly & Associates, 2000, ISBN: 1565928717.A follow-up to one of the original "big books" of computer security, this second edition walks well in the footsteps of its predecessor. Widely acknowledged as "the" firewall book, it digs into the principles and practices that travel into edifice and implementing Internet firewalls dote no other resource I know of. It does not address capabilities or configurations for today's turnkey firewalls, but does accomplish an excellent job of analyzing and describing security strategies and configuration, both worthy and bad. New, timely topics added comprehend streaming media, ActiveX, Java, IPv6, and so on, but the reserve maintains a focus on securing Internet services and constructing secure firewalls.

    Here are some additional bewitching infosec bibliographies, if you'd dote to remark other takes on this matter matter (you'll find more in the second fragment of this epic as well):

    Please forward me feedback on my selections, including your recommendations for possible additions or deletions. I can't bid I'll act on indelicate such input, but I will respect indelicate of it carefully.

    Kim Lindros provided research and fact checking for this article.


    Computer Science Professor Develops FlowRep Algorithm for Creation of 3D Shapes | killexams.com real questions and Pass4sure dumps

    Describing something to someone who has never experienced it before is difficult, maybe even impossible in some cases. How accomplish you account for color to a blind person? Or how accomplish you describe an unusual shape to someone who has never seen that shape before? Imagine a computer mouse, for example. The majority of people know exactly what a computer mouse is for, and what it looks like, but what if you happened to encounter one person who had never seen a mouse before? How would you describe a mouse to that person so that they could accurately picture it? If you mediate you would endure a difficult time doing so, you’re not alone.

    Alla Sheffer

    “If you try to account for what your computer mouse looks dote to someone who has never seen a mouse before, you’re going to struggle to verbally describe its shape,” says Alla Sheffer, a computer science professor at the University of British Columbia. “Humans are worthy at verbally describing colour or dimensions, but cannot easily articulate geometric properties. The easiest pass to describe shapes is to sketch them.”

    If you’re not worthy at drawing, however, that becomes difficult as well, and you could quit up leaving your penniless mouseless friend with a very warped faith of what a mouse looks like. So Sheffer developed an algorithm that can generate those sketches for you. Working with Adobe Research and Washington University in St. Louis, she studied Gestalt psychology, which offers insights on how people interpret and understand depth from two-dimensional drawings. She used that information to create an algorithm that can circle everything from airplanes to coffee mugs into detailed, accurate sketches.

    “All you necessity is a dozen strokes or less and people will be able to envision the geometry of an object,” Sheffer says. “This program answers the question about which surface curves they necessity to track so that human observers can imagine a shape.”

    The algorithm was developed into a program called FlowRep, which Sheffer presented yesterday at SIGGRAPH 2017, the largest computer graphics and interactive techniques conference in the world. The program builds on earlier algorithms developed by Sheffer and her colleagues, which circle sketches and drawings into 3D shapes. By putting the methods together, they can recreate objects through 3D printing and other forms of digital fabrication. It’s yet another pass in which they can create by digital means, bringing something into actuality from seemingly nothing.

    So far, FlowRep has performed well in user studies. The algorithm was able to produce shapes comparable to the shapes drawn by professional designers. Sheffer is now looking to expand the research and find additional applications for the program, and to ameliorate it so that it can create natural shapes in addition to man-made ones; perquisite now, the algorithm is optimized particularly for man-made objects.

    The research behind FlowRep was published in a paper entitled “FlowRep: Descriptive Curve Networks for Free-Form Design Shapes,” which you can read here. Additional authors comprehend Giorgio Gori, Nicholas Vining, Enrique Rosales, Nathan Carr and Tao Ju. You can learn more about FlowRep below:

    [Source/Images: University of British Columbia]

    Discuss in the FlowRep forum at 3DPB.com.


    How to Create Codes That Even the NSA Can’t shatter | killexams.com real questions and Pass4sure dumps

    NSA security lock

    In a previous post I described mathematicians’ ongoing search for key properties of prime numbers. That pains may seem to belong entirely within the realm of unadulterated mathematics; but surprisingly, the jiffy of primes goes far beyond the abstruse obsessions of ivory-tower mathematicians. In fact, the exercise of prime numbers underlies some of the most dramatic events in the intelligence these past weeks: the epic behind Edward Snowden’s revelations that the National Security Agency (NSA) is snooping on the communications of both American citizens and European diplomats.

    While the Europeans endure protested about their internal communications being intercepted by the NSA—ironically—the tools that one can exercise for protection from spying by anyone are readily accessible online, in the professional literature, and in publicly-available manuals and textbooks. These methods indelicate trust on ingenious uses of prime numbers.

    The essentials of these techniques are far from new. The foundations of a program to create codes so powerful that they could not be broken even if an eavesdropper were to exercise the entire available worldwide computing power were laid more than 35 years ago. The year 1976 saw the progress of the Diffie-Hellman key exchange method (named after Whitfield Diffie and Martin Hellman; the names Ralph Merkle, James Ellis, Clifford Cocks, and Malcolm Williamson are often besides associated with it); and the following, 1977, witnessed the appearance of the RSA algorithm. Both methods endure advanced over the past three and a half decades, but information about their extensions is besides readily available to anyone.

    How accomplish these techniques work? I will account for both methods here—necessarily in a simplified way. (Those interested in learning more can read some of the articles in the links that appear throughout this post.)

    Alice sends Bob a covert message

    The Diffie-Hellman key exchange faith has been described in a pellucid and concise pass using an analogy by Terence Tao, whose travail on prime numbers I mentioned in my previous post. The faith is as follows. Alice wants to forward Bob a covert message (cryptographers prefer to exercise “from Alice to Bob” instead of the mundane “from A to B”) and she wants to prevent Eve (the “eavesdropper”) from reading it. So Alice places the message in a box, puts a worthy lock on it, keeps the key, and sends the package to Bob. (If Alice were to separately forward Bob the key, there would be a chance that Eve could intercept both the package and the key.)

    Bob has no key to Alice’s lock. So what he does instead is to status his own lock on the box. And he now sends the package back to Alice, locked twice: using both her lock and his. Alice gets the package, removes her own lock using her key, and then sends the box, noiseless safe because it bears Bob’s lock, back to Bob. Now Bob uses his key, opens the box, and gets the message! Each person here used his or her own lock and key—and yet a message was passed perfectly safely from Alice to Bob.

    The digital version

    This faith is implemented digitally in the Diffie-Hellman key exchange. The message to be sent from Alice to Bob is a covert number, convoke it n. Alice’s “key” is an exponent, a, which she chooses, and then uses it to raise n to. So the “locked box with the message” that Alice sends Bob is na. Bob has his own “key,” which is a number of his own choosing, b, that he uses as an exponent. He doesn’t know n or a, but he has na, which he got from Alice, so he raises this number to the power b. He thus sends Alice the “box with the two locks”: nab. Alice’s using her own key to open her own lock means her taking the ath root of nab, which, from the simple math of exponents, they know gives her nb, which she now sends back to Bob. Using his “key,” his exponent b, Bob takes the bth root of nb, and he thus obtains the covert number n that Alice wanted to convey to him.

    Creating stronger codes with primes

    It is possible to forward a covert number from Alice to Bob as I just described, and if the numbers are big enough, one would endure a reasonable probability that the number might not be deduced by Eve. In actuality, however, modern implementations of the Diffie-Hellman key exchange use more sophisticated elements to do it more difficult to shatter the code. And the covert number is not sent from Alice to Bob, but rather deduced by both of them using the formula nab (which, of course, is besides equal to  nba).

    Alice and Bob pick a prime number, which they assume can be known to Eve, or to anyone in the world. Let’s bid that this number is 11. They then accomplish indelicate calculations using the mathematical multiplicative group of integers modulo 11 (like a clock going around to 12 and then starting from 1, this group starts to signify again after reaching 11). They besides pick a base, and let’s suppose it is the number 5. Alice then chooses her covert number, bid 3. Independently, Bob chooses his covert number, 4.

    Alice raises the commonly-agreed-on foundation of 5 to the power of her covert number 3, and does the calculation modulo 11. She gets:  53 = 125, but 125 modulo 11 is 4 (it’s the remnant of dividing 125 by 11, which gives 11 and a remnant of 4—it acts dote 16 hours in a clock, but this clock is based on 11 rather than 12). She sends Bob the answer, the number 4. Recall that Bob had chosen a covert number of 4, so he raises the 4 he got from Alice to the 4th power, modulo 11, and this gives him 44 = 256, but 256 modulo 11 is 3 (because 11×23 = 253, leaving the remnant 3), which is his final answer.

    Alice gets from Bob the original 5 they had both agreed on, but now raised to the power of his covert number, 4, modulo 11, which is 625 modulo 11, which is 9 (as 11×56 = 616, leaving a remnant of 9). She then raises this number to the power of her covert number of 3, again doing this calculation modulo 11. She gets the selfsame number that Bob got, 3 (because 93 = 729, but modulo 11 it is 3, since 11×66 = 726, which leaves a remnant of 3).

    Using this complicated modular arithmetic based on a prime number, but essentially raising a number to hidden powers as in the previous section, Alice and Bob establish a common covert number, in this example, 3. Modular arithmetic using prime numbers helps do the algorithm much more difficult to decipher by an eavesdropper.* In reality, the prime number is large, and so are the other numbers. When Alice and Bob exercise covert numbers 100 digits long, the common number jointly deduced by Alice and Bob cannot be learned by Eve even if she has access to indelicate the world’s available computing power.

    Once Alice and Bob endure established a common covert number, they can exercise it as a key to encrypt messages from one to the other and should endure a elevated probability that their communication will not be deciphered by an outsider.

    Two keys are better than one

    The year after the Diffie-Hellman algorithm was published, three academics then working at MIT—Ron Rivest, Adi Shamir, and Leonard Adelman—came up with a brilliant faith for encrypting messages. What they tried to accomplish was to avoid the stage in which Alice and Bob must create a common covert number, since this stage slows down the communication between them.

    The three MIT scientists developed the notion of a pair of keys: a public key and a private key, which are then jointly used for communicating covert messages. The public key can be published and known to all. Its exercise saves time. The private key is a covert that Bob keeps, allowing him to decipher coded messages from Alice (or from anyone who knows his public key). Bob publishes his public key, which is a big number. This number is obtained when he multiplies together two very big prime numbers, known only to him (they constitute his private key). When Alice wants to forward Bob a covert message, she encrypts it using his known public key. But in order to decrypt the message, one would necessity to know Bob’s private key, which is the two prime numbers he had used to create his publicly-known key. Supposedly, only Bob can accomplish this.

    Encrypting and decrypting messages using the RSA algorithm is a complicated mathematical procedure that relies on modular arithmetic and prime numbers similarly to the pass they are used in the description of the Diffie-Hellman system above. But it is more sophisticated so that it can allow deciphering using only the private key. The public key solitary is useless for deciphering the RSA code.

    The essential element of RSA is the fact that the public key is composed of the product of two very big unknown prime numbers. It so happens that factoring a number into its prime components is very difficult when the primes are large. (35 = 7×5, a product of two primes, is easy; but 46,324,637 = 5,881 × 7,877 is harder, and primes used in RSA encryption are much larger still.) It is this fact solitary that keeps Eve in the dark. She knows the product of the two prime numbers—but she can’t easily (and hopefully not at all) deduce what the two primes are!

    The RSA Challenge

    Right after the RSA system was invented, Martin Gardner published in Scientific American an encrypted message and a big RSA number, with 129 digits, that was the product of two primes. He challenged his readers to shatter the code, offering a $100 prize. It took 17 years for the number to be factored and the message deciphered. This was a relatively short period of time—many had expected that it would Take an exceedingly long time, and Rivest, Shamir, and Adelman had jested that it could Take several “quadrillion years.” The complicated operation was achieved using distributed computing with thousands of computers around the world performing parts of the common calculation—thus demonstrating the power of such an approach.

    RSA Security, founded by the academics, has since published several similar numbers, and for a time there was a cash prize offered for their factoring into pairs of primes, which the company subsequently withdrew. By now, some of these challenges endure been met by mathematicians using distributed computing. Here is one problem that is noiseless outstanding, an RSA number with 210 digits, that has never yet been factored into two primes:

    RSA-210 = 245246644900278211976517663573088018467026787678332759743414451715061600830038587216952208399332071549103626827191679864079776723243005600592035631246561218465817904100131859299619933817012149335034875870551067

    Obviously, the larger the number to be factored, the longer the time needed to shatter it into a pair of primes. Beyond a inescapable length (in decimal digits), the RSA code becomes impregnable and therefore any message based on it undecipherable (in a reasonably finite length of time) by an eavesdropper. The RSA algorithm is widely used today in Internet security.

    NSA’s uses and abuses of encryption

    In adopting standards for encryption in the United States, and for exporting encryption products, the NSA has pushed for, and succeeded in implementing, legal limits on the size of the numbers used in RSA coding, so that—with its supercomputers—it would be able to decipher any message based on it. Presumably, the Europeans are not bound by these restrictions, and their cryptanalysts should endure been able to easily devise an unbreakable RSA code (by choosing primes that are big enough) for exercise in routine European diplomatic communications as well as protecting their computers from hacking.

    And as history has shown, supercomputers are less effectual than wide-ranging worldwide distributed computing for breaking advanced codes—but by its very nature, the NSA could never employ the latter. On the other hand, the most recent revelations seem to argue that one of the purposes of NSA searches is in fact to identify people or entities that exercise encryption in their communications. If so, indelicate the more understanding for the European governments to exercise established, Western, advanced codes, so as to set themselves apart from terrorist entities, whose codes would necessarily perceive different. This would actually serve the NSA concentrate on identifying real threats rather than wasting resources on intercepting Brussels messages such as: “Pierre, Italian or Chinese for lunch today? Yours, Hans.”

    Thus they find ourselves where they accomplish now, in an arms race of encryption and decryption, a world in which unadulterated mathematics plays the key role in helping invent better and better codes. As the codes become more sophisticated, so accomplish the code-breakers, and the cycle perpetuates itself. What is so extraordinary is that codes that were considered absolutely unbreakable a few decades ago accomplish become breached as the technology improves—but then again, those designing fresh encryption methods, on indelicate sides, exercise ever more complicated math to withhold a step ahead of their pursuers.

    *There are two worthy reasons for using modular arithmetic. The first is that it acts as a many-to-one function, in the sense that many numbers, when divided by a prime, will give the selfsame remainder—thus making Eve’s life much more complicated (she can’t uniquely reconstruct Alice and Bob’s covert numbers). Using the clock example, if she should overhear that a meeting is to Take status at 1 o’clock, she couldn’t narrate if it’s a.m. or p.m., or which day. The second understanding is that it puts a cap on the size of numbers involved when using exponentials, since (by definition!) without modular arithmetic these numbers grow “exponentially,” and could do computations intractable.

    Image courtesy Maksim Kabakou / Shutterstock



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