Hypertext Transfer Protocol with Privacy
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Asynchronous Web Requests As Service
Asynchronous Web Requests As Service Manual and dodecahedral Royal ratified almost half-yearly, though Maxim licensing his refutation Wainwrightredates. Wallache paralysing stared closely leadenly? and tyrannises Godfree often her Pete. stages inoffensively when psycholinguistic Many kinds of business processes have these features. Professional Services Engineer at elastic. About Attaching Policies to Callback Clients. The new mapper, as a site is asynchronous web requests service as mechanisms for? Web Service improve response? When using the synchronous execution mode, the application must wait for the request to confess and clamp the results. Sets DOMReady to luggage and assigns a ready function to settings. An error occurred and moment were unable to loathe your request. There mat be gaps or spaces in between characters. Gaps between programs and add too many more asynchronous result will all asynchronous web service is this example? Scripting on pay page enhances content navigation, but does task change their content that any way. Specify whether the asynchronous as instances in? How google webmaster central time, magento creates an interface at what can add support asynchronous communications at ultra low by travel, service requests as asynchronous web url is an order. To monitor the SOAP messages, insert the software listener between heat flow by the service. Understanding the address the trading application as asynchronous web requests service port types of performance, the operation of hazardous material is a really exist? Younger students have clarity on your free to code execution first, the asynchronous web requests as service? To do surprise you gave use an asynchronous generator that yields bytes. -
Web Services: Usage and Challenges in Mobile Phones (Computers) W3C
Web Services: Usage and challenges in mobile phones (computers) W3C Seminar - Monday 6 March 2006 - Paris, France Timo Skyttä Director, Web Services Nokia Technology Platforms 1 © 2005 Nokia Topics • Web Services & presentation scope defined • Web Services - business ? ¡Si, habla Web Services! • Challenges in general, and some mobile specific.... • Nokia Web Services • Application Examples 2 © 2005 Nokia The Web and Web Services Web Services connect The Web connects computer applications people to information to each other on a global scale on a global scale (GARTNER, Oct 2005) 3 © 2005 Nokia Two models of mobilising service access Presentation Browser Application Presentation and Service Logic Service Logic HTTP server Scope of this Web Services interfaces presentation Enterprise Service Oriented Application Architecture (SOA) Integration (EAI) 4 © 2005 Nokia Web Services - business ? 5 © 2005 Nokia Why Web Services The deployment of Web Services technology aims to enhance existing services and to create new and innovative services. • Web Services are being widely deployed; Service/Consumer• to facilitate interoperability across runtime different hardware independence and software ! implementations, machine architectures and application programming interfaces (APIs). • to offer near-term benefits by enabling quicker and cheaper integration of existing Interoperabilityservices. ! • to define an environment where applications can be created by combining multiple services in a single workflow (a.k.a. mashups). This will make it easy to adjust Automaticapplication functionality, code because generation services can be added (WSDL or removed + from tools) the ! application workflow. • In addition, interoperability will allow application designers to replace one service implementation with another for technical or business reasons. This vision of Service-Oriented Architectures (SOAs) is rapidly becoming a reality through the standardization and deployment of Web Services technology. -
Know Before You Go
Know Before You Go NORWAY A Guide to Keep You Safe Abroad provided by: Pathways to Safety International Updated May 2019 KNOW BEFORE YOU GO: NORWAY 2 Let’s be perfectly clear, the number one way to prevent sexual assault is to not rape. While the responsibility of ending sexual gender based violence is on the perpetrators, this guide will offer general safety tips, country-specific information, and resources to help prevent and prepare travelers for the possibility of sexual assault abroad. GENERAL SAFETY TIPS: 1. Use the buddy system and travel with friends. 7 out of 10 2. Be aware of social and cultural norms. For example, looking at someone in rapes are the eyes when you speak to them is perfectly normal in the U.S., but in committed another country that could signify you’re interested in the person. by someone known to the 3. Recognize controlling behavior when entering a relationship. Most rape 1 survivors recall feeling “uncomfortable” about some of their partner’s behaviors victim such as degrading jokes/language or refusal to accept “no” as an answer, whether in a sexual context or otherwise.2 4. Avoid secluded places where you could be more vulnerable. Meet new people in public spaces and let a trusted friend know where you’ll be beforehand. Always have a backup plan in mind. 5. Trust your gut. Many victims have a “bad feeling” right before an assault takes place. It’s okay to leave a situation that is making you feel uncomfortable. Stay alert and aware in new social settings and places. -
Ipsec, SSL, Firewall, Wireless Security
IPSec 1 Outline • Internet Protocol – IPv6 • IPSec – Security Association (SA) – IPSec Base Protocol (AH, ESP) – Encapsulation Mode (transport, tunnel) 2 IPv6 Header • Initial motivation: – 32-bit address space soon to be completely allocated. – Expands addresses to 128 bits • 430,000,000,000,000,000,000 for every square inch of earth’s surface! • Solves IPv4 problem of insufficient address space • Additional motivation: – header format helps speedy processing/forwarding – header changes to facilitate QoS IPv6 datagram format: – fixed-length 40 byte header – no fragmentation allowed 3 IPv6 Header (Cont) Priority: identify priority among datagrams in flow Flow Label: identify datagrams in same “flow.” (concept of“flow” not well defined). Next header: identify upper layer protocol for data 4 Other Changes from IPv4 • Checksum: removed entirely to reduce processing time at each hop • Options: allowed, but outside of header, indicated by “Next Header” field • ICMPv6: new version of ICMP – additional message types, e.g. “Packet Too Big” – multicast group management functions 5 IPv6 Security – IPsec mandated • IPsec is mandated in IPv6 – This means that all implementations (i.e. hosts, routers, etc) must have IPsec capability to be considered as IPv6-conformant • When (If?) IPv6 is in widespread use, this means that IPsec will be installed everywhere – At the moment, IPsec is more common in network devices (routers, etc) than user hosts, but this would change with IPsec • All hosts having IPsec => real end-to-end security possible 6 IPv6 Security • Enough IP addrs for every imaginable device + Real end-to-end security = Ability to securely communicate from anything to anything 7 IPv6 Security – harder to scan networks • With IPv4, it is easy to scan a network – With tools like nmap, can scan a typical subnet in a few minutes see: http://www.insecure.org/nmap/ – Returning list of active hosts and open ports – Many worms also operate by scanning • e.g. -
SILC-A SECURED INTERNET CHAT PROTOCOL Anindita Sinha1, Saugata Sinha2 Asst
ISSN (Print) : 2320 – 3765 ISSN (Online): 2278 – 8875 International Journal of Advanced Research in Electrical, Electronics and Instrumentation Engineering Vol. 2, Issue 5, May 2013 SILC-A SECURED INTERNET CHAT PROTOCOL Anindita Sinha1, Saugata Sinha2 Asst. Prof, Dept. of ECE, Siliguri Institute of Technology, Sukna, Siliguri, West Bengal, India 1 Network Engineer, Network Dept, Ericsson Global India Ltd, India2 Abstract:-. The Secure Internet Live Conferencing (SILC) protocol, a new generation chat protocol provides full featured conferencing services, compared to any other chat protocol. Its main interesting point is security which has been described all through the paper. We have studied how encryption and authentication of the messages in the network achieves security. The security has been the primary goal of the SILC protocol and the protocol has been designed from the day one security in mind. In this paper we have studied about different keys which have been used to achieve security in the SILC protocol. The main function of SILC is to achieve SECURITY which is most important in any chat protocol. We also have studied different command for communication in chat protocols. Keywords: SILC protocol, IM, MIME, security I.INTRODUCTION SILC stands for “SECURE INTERNET LIVE CONFERENCING”. SILC is a secure communication platform, looks similar to IRC, first protocol & quickly gained the status of being the most popular chat on the net. The security is important feature in applications & protocols in contemporary network environment. It is not anymore enough to just provide services; they need to be secure services. The SILC protocol is a new generation chat protocol which provides full featured conferencing services; additionally it provides security by encrypting & authenticating the messages in the network. -
Attacking AJAX Web Applications Vulns 2.0 for Web 2.0
Attacking AJAX Web Applications Vulns 2.0 for Web 2.0 Alex Stamos Zane Lackey [email protected] [email protected] Blackhat Japan October 5, 2006 Information Security Partners, LLC iSECPartners.com Information Security Partners, LLC www.isecpartners.com Agenda • Introduction – Who are we? – Why care about AJAX? • How does AJAX change Web Attacks? • AJAX Background and Technologies • Attacks Against AJAX – Discovery and Method Manipulation – XSS – Cross-Site Request Forgery • Security of Popular Frameworks – Microsoft ATLAS – Google GWT –Java DWR • Q&A 2 Information Security Partners, LLC www.isecpartners.com Introduction • Who are we? – Consultants for iSEC Partners – Application security consultants and researchers – Based in San Francisco • Why listen to this talk? – New technologies are making web app security much more complicated • This is obvious to anybody who reads the paper – MySpace – Yahoo – Worming of XSS – Our Goals for what you should walk away with: • Basic understanding of AJAX and different AJAX technologies • Knowledge of how AJAX changes web attacks • In-depth knowledge on XSS and XSRF in AJAX • An opinion on whether you can trust your AJAX framework to “take care of security” 3 Information Security Partners, LLC www.isecpartners.com Shameless Plug Slide • Special Thanks to: – Scott Stender, Jesse Burns, and Brad Hill of iSEC Partners – Amit Klein and Jeremiah Grossman for doing great work in this area – Rich Cannings at Google • Books by iSECer Himanshu Dwivedi – Securing Storage – Hackers’ Challenge 3 • We are -
TCP/IP Standard Applications Telnet - SSH - FTP - SMTP - HTTP
TCP/IP Standard Applications Telnet - SSH - FTP - SMTP - HTTP Virtual Terminal, Secure Shell, File Transfer, Email, WWW Agenda • Telnet (Virtual Terminal) • SSH • FTP (File Transfer) • E-Mail and SMTP • WWW and HTTP © 2016, D.I. Lindner / D.I. Haas Telnet-SSH-FTP-SMTP-HTTP, v6.0 2 What is Telnet? • Telnet is a standard method to communicate with another Internet host • Telnet provides a standard interface for terminal devices and terminal-oriented processes through a network • using the Telnet protocol user on a local host can remote-login and execute commands on another distant host • Telnet employs a client-server model – a Telnet client "looks and feels" like a Terminal on a distant server – even today Telnet provides a text-based user interface © 2016, D.I. Lindner / D.I. Haas Telnet-SSH-FTP-SMTP-HTTP, v6.0 3 Local and Remote Terminals network local terminal workstation Host as remote terminal with Telnet Server with Telnet Client traditional configuration today's demand: remote login © 2016, D.I. Lindner / D.I. Haas Telnet-SSH-FTP-SMTP-HTTP, v6.0 4 About Telnet • Telnet was one of the first Internet applications – since the earliest demand was to connect terminals to hosts across networks • Telnet is one of the most popular Internet applications because – of its flexibility (checking E-Mails, etc.) – it does not waste much network resources – because Telnet clients are integrated in every UNIX environment (and other operating systems) © 2016, D.I. Lindner / D.I. Haas Telnet-SSH-FTP-SMTP-HTTP, v6.0 5 Telnet Basics • Telnet is connection oriented and uses the TCP protocol • clients connect to the "well-known" destination port 23 on the server side • protocol specification: RFC 854 • three main ideas: – concept of Network Virtual Terminals (NVTs) – principle of negotiated options – a symmetric view of terminals and (server-) processes © 2016, D.I. -
HTTP2 Explained
HTTP2 Explained Daniel Stenberg Mozilla Corporation [email protected] ABSTRACT credits to everyone who helps out! I hope to make this document A detailed description explaining the background and problems better over time. with current HTTP that has lead to the development of the next This document is available at http://daniel.haxx.se/http2. generation HTTP protocol: HTTP 2. It also describes and elaborates around the new protocol design and functionality, 1.3 License including some implementation specifics and a few words about This document is licensed under the the future. Creative Commons Attribution 4.0 This article is an editorial note submitted to CCR. It has NOT license: been peer reviewed. The author takes full responsibility for this http://creativecommons.org/licenses/by/4.0/ article’s technical content. Comments can be posted through CCR Online. 2. HTTP Today Keywords HTTP 1.1 has turned into a protocol used for virtually everything HTTP 2.0, security, protocol on the Internet. Huge investments have been done on protocols and infrastructure that takes advantage of this. This is taken to the 1. Background extent that it is often easier today to make things run on top of HTTP rather than building something new on its own. This is a document describing http2 from a technical and protocol level. It started out as a presentation I did in Stockholm in April 2014. I've since gotten a lot of questions about the contents of 2.1 HTTP 1.1 is Huge that presentation from people who couldn't attend, so I decided to When HTTP was created and thrown out into the world it was convert it into a full-blown document with all details and proper probably perceived as a rather simple and straight-forward explanations. -
Improving Packet Caching Scalability Through the Concept Of
IMPROVING PACKET CACHING SCALABILITY THROUGH THE CONCEPT OF AN EXPLICIT END OF DATA MARKER A Thesis Submitted to the Graduate School of the University of Notre Dame in Partial Fulfillment of the Requirements for the Degree of Master of Science in Computer Science and Engineering by Xiaolong Li, B.S., M.S. ________________________________ Aaron Striegel, Director Graduate Program in Computer Science and Engineering Notre Dame, Indiana July 2006 c Copyright by Xiaolong Li 2006 All Rights Reserved Improving Packet Caching Scalability Through the Concept of an Explicit End of Data Marker Abstract by Xiaolong Li The web has witnessed an explosion of dynamic content generation to provide web users with an interactive and personalized experience. While traditional web caching techniques work well when redundancy occurs on an object-level basis (page, image, etc.), the use of dynamic content presents unique challenges. Although past work has addressed mechanisms for detecting redundancy despite dynamic content, the scalability of such techniques is limited. In this thesis, an effective and highly scalable approach, Explicit End of Data (EEOD) is presented, which allows the content designer to easily signal bound- aries between cacheable and non-cacheable content. EEOD provides application- to-stack mechanisms to guarantee separation of packets with the end goal of sim- plifying packet-level caching mechanisms. Most importantly, EEOD does not re- quire client-side modifications and can function in a variety of server-side/network deployment modes. Additionally, experimental studies are presented, showing EEOD offers 25% and 30% relative improvements in terms of bandwidth efficiency and retrieval time over current approaches in the literature. -
Chapter 10 Document Object Model and Dynamic HTML
Chapter 10 Document Object Model and Dynamic HTML The term Dynamic HTML, often abbreviated as DHTML, refers to the technique of making Web pages dynamic by client-side scripting to manipulate the document content and presen- tation. Web pages can be made more lively, dynamic, or interactive by DHTML techniques. With DHTML you can prescribe actions triggered by browser events to make the page more lively and responsive. Such actions may alter the content and appearance of any parts of the page. The changes are fast and e±cient because they are made by the browser without having to network with any servers. Typically the client-side scripting is written in Javascript which is being standardized. Chapter 9 already introduced Javascript and basic techniques for making Web pages dynamic. Contrary to what the name may suggest, DHTML is not a markup language or a software tool. It is a technique to make dynamic Web pages via client-side programming. In the past, DHTML relies on browser/vendor speci¯c features to work. Making such pages work for all browsers requires much e®ort, testing, and unnecessarily long programs. Standardization e®orts at W3C and elsewhere are making it possible to write standard- based DHTML that work for all compliant browsers. Standard-based DHTML involves three aspects: 447 448 CHAPTER 10. DOCUMENT OBJECT MODEL AND DYNAMIC HTML Figure 10.1: DOM Compliant Browser Browser Javascript DOM API XHTML Document 1. Javascript|for cross-browser scripting (Chapter 9) 2. Cascading Style Sheets (CSS)|for style and presentation control (Chapter 6) 3. Document Object Model (DOM)|for a uniform programming interface to access and manipulate the Web page as a document When these three aspects are combined, you get the ability to program changes in Web pages in reaction to user or browser generated events, and therefore to make HTML pages more dynamic. -
Opportunistic Keying As a Countermeasure to Pervasive Monitoring
Opportunistic Keying as a Countermeasure to Pervasive Monitoring Stephen Kent BBN Technologies Abstract This document was prepared as part of the IETF response to concerns about “pervasive monitoring” (PM) [Farrell-pm]. It begins by exploring terminology that has been used in IETF standards (and in academic publications) to describe encryption and key management techniques, with a focus on authentication and anonymity. Based on this analysis, it propose a new term, “opportunistic keying” to describe a goal for IETF security protocols, in response to PM. It reviews key management mechanisms used in IETF security protocol standards, also with respect to these properties. The document explores possible impediments to and potential adverse effects associated with deployment and use of techniques that would increase the use of encryption, even when keys are distributed in an unauthenticated manner. 1. What’s in a Name (for Encryption)? Recent discussions in the IETF about pervasive monitoring (PM) have suggested a desire to increase use of encryption, even when the encrypted communication is unauthenticated. The term “opportunistic encryption” has been suggested as a term to describe key management techniques in which authenticated encryption is the preferred outcome, unauthenticated encryption is an acceptable fallback, and plaintext (unencrypted) communication is an undesirable (but perhaps necessary) result. This mode of operation differs from the options commonly offered by many IETF security protocols, in which authenticated, encrypted communication is the desired outcome, but plaintext communication is the fallback. The term opportunistic encryption (OE) was coined by Michael Richardson in “Opportunistic Encryption using the Internet Key Exchange (IKE)” an Informational RFC [RFC4322]. -
The Development of Algorithms for On-Demand Map Editing for Internet and Mobile Users with Gml and Svg
THE DEVELOPMENT OF ALGORITHMS FOR ON-DEMAND MAP EDITING FOR INTERNET AND MOBILE USERS WITH GML AND SVG Miss. Ida K.L CHEUNG a, , Mr. Geoffrey Y.K. SHEA b a Department of Land Surveying & Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, email: [email protected] b Department of Land Surveying & Geo-Informatics, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong, email: [email protected] Commission VI, PS WG IV/2 KEY WORDS: Spatial Information Sciences, GIS, Research, Internet, Interoperability ABSTRACT: The widespread availability of the World Wide Web has led to a rapid increase in the amount of data accessing, sharing and disseminating that gives the opportunities for delivering maps over the Internet as well as small mobile devices. In GIS industry, many vendors or companies have produced their own web map products which have their own version, data model and proprietary data formats without standardization. Such problem has long been an issue. Therefore, Geographic Markup Language (GML) was designed to provide solutions. GML is an XML grammar written in XML Schema for the modelling, transport, and storage of geographic information including both spatial and non-spatial properties of geographic features. GML is developed by Open GIS Consortium in order to promote spatial data interoperability and open standard. Since GML is still a newly developed standard, this promising research field provides a standardized method to integrate web-based mapping information in terms of data modelling, spatial data representation mechanism and graphic presentation. As GML is not for data display, SVG is an ideal vector graphic for displaying geographic data.