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It was because of the use of Base64 that the problem occurred when the token was sent through the Get method. For example: http://test/test.php?a=1+2 You use $_get["a" to obtain is: 1 2, namely that the plus sign is gone. At first I used UrlEncode to convert it, but there were always one or two results that were unexpected. Later think of Base64 characters are limited to: [a-za-z0-9\+\/=] So many, plus the problem, I will replace the plus sign withou
It was because of the use of Base64 that there was a problem when sending this token through the Get method. For example: http://test/test.php?a=1+2 You use $_get["a"] to obtain is: 1 2, that is, the plus sign is gone. At first I used UrlEncode to convert it, but there were always one or two of the results that were unexpected. Later think of the Base64 character is limited to: [a-za-z0-9\+\/=] So many, plus the problem, I will replace the plus sign
Since Kali itself integrates a lot of NFC tools, it is convenient to use, plus a acr122u card reader, to try PJ School water Card!First install the driver, to ACS official website to download Linux, unzip into their own Linux distribution, Kali is Debian, directly is the Deb installation package, dpkg-i installation on the lineThen install Debhelper LibtoolApt-get install -y debhelper libtool apt-get install debhelper Then you can connect the d
Ios6 was released at the WWDC Conference held in June. Now, the focus of discussions on iPhone 5 is on hardware. Because ios6 addsPassbookFunction, it canUsed to store discount coupons and membership cardsSo some people have speculated whether the new iPhone will be built into NFC Technology (near-field communication, can allow mobile phones and bank cards to complete payment. The iPhone is likely to become an electronic wallet. If
Thank you for your patience. This book is expected to be available in middle March. From today on, I will include some of the content of this book in my blog. Note that the original article is serialized without being edited by the publisher, so it may look a little non-professional. In the appendix, Mr. Wu Jinliang, one of the authors and reviewers, discusses the positioning and learning methods of this book. I believe that these discussions can resonate with readers. The appendix contains seve
Read and Write NFC tagsTo read and write NFC tags, it involves getting tags from the intent object and opening the communication with the label. To read and write NFC tag data, you have to define your own protocol stack. However, keep in mind that you can still read and write ndef data when working directly with the NFC
Data formats supported by Android Intent filter in Data Format In the AndroidManifest. xml file Specify the resource file you created in the element: VcD4KPHByZSBjbGFzcz0 = "brush: java;">... ... Nfc_tech_filter.xml file (a Tag is considered to be matched only when all Tags match the nfc chip specified by the tech element in the tech-list element ): android.nfc.tech.IsoDep android.nfc.tech.NfcA
For a long time, NFC tags can only communicate with a single electronic device (mainly mobile phones. Recently, the dual-interface NFC tag launched by inside secure provides low-cost, fast, and convenient Product Support for interaction between two electronic devices. It can be predicted that in the future, NFC applications will no longer be limited to communicat
Like other information technologies, the emergence of NFC technology provides many possibilities for us to develop new applications, but it also faces various security problems. This article will introduce and analyze the five common security problems of the NFC system. 1. Eavesdropping Eavesdropping refersNFC link layer communication is not encryptedIn this case, if we do not perform some encryption pr
PHP token (token) design goal: avoid repeating data submissions. Check the routing, whether it is an external commit match to perform the action (if there are multiple logic in the same page implementation, such as new, delete, modify and put into a PHP file operation) Here the token is in the page display, write to the form of a hidden form item (Type=hidden).
PHP token (token) design goal: avoid repeating data submissions. Check the routing, whether it is an external commit match to perform the action (if there are multiple logic in the same page implementation, such as new, delete, modify and put into a PHP file operation) Here the token is in the page display, write to the form of a hidden form item (Type=hidden).
NFC: Near Field Communication Technology RFID (radio frequency identification) technology, also known as electronic tags and radio frequency identification, is used by bus cards. Small NFC transmission range, secure and low power consumption RFID is a recognition technology, while NFC is an interactive communication method. Some people say that
As we all know, Windows Phone 8 SDK simulators do not support NFC testing. If you have developed an NFC-based application, it means that you need two Windows Phone devices that support NFC during the test. Such configuration may discourage many independent developers. The good news is that open-source projectsProximity tapperThis solution satisfies the requirem
In May February this year, the NFC forum just released the first specification of NFC TechnologyNdef (NFC data exchange format)-That isNFC data exchange Specification. In less than two months, eclipse released the NFC development plug-in based on the ndef specification. This plug-in is namedAntares Software Development
According to foreign media reports, RIM's joint chief executive Jim Balsillie recently launched the BlackBerry Tag service at the GITEX conference in Dubai. With this service, users can share their contact information, files, and multimedia content by touching their mobile phones. RIM revealed that the BlackBerry Tag service will be integrated into BlackBerry 7 software updates based on NFC (Near-Field Communication) wireless technology. The first sma
Problem Symptom:--------------------------650) this.width=650; "src=" Http://s1.51cto.com/wyfs02/M00/82/7F/wKioL1dXhriDVHGhAAA_JYeF0sQ429.jpg "title=" Nfc-error1.jpg "alt=" Wkiol1dxhridvhghaaa_jyef0sq429.jpg "/>Runtime envirnment:---------------------------Vcenter 5.5ESXI 5.5Client WIndows 7 with WirelessSolution Reference:------------------------Http://www.vspecialist.co.uk/2012/10/failed-to-login-to-nfc-s
How to achieve the goal:How to avoid repeated submission?You need to store an array in the SESSION, which is saved as the token successfully submitted. when processing in the background, first determine whether the token is in this array. If yes, it indicates repeated submission.How do I check the routes?Optional. The current session_id is added when the token is
A brief talk on tokenToken, is a token, the biggest feature is randomness, unpredictable. General hackers or software can not be guessed out.So, what's the role of token? What is the principle?Token is typically used in two places-preventing form recurrence, anti CSRF attacks (Cross-site request forgery).Both in principle are through the session
Near-Field Communication (NFC) is a set of short-range wireless technologies. It usually requires a distance of 4 cm or shorter to initialize the connection. NFC allows users to share small data loads between NFC tags and Android devices or between two Android devices. NFC tags have complex classifications. Simple
Purpose of Use: Current activity can respond directly to an NFC tag without requiring the user to choose all the activity that can be handled.Steps to use:First step: In the OnCreate () method// NFC Front-desk dispatch system Private null;.........// initializes the pendingintent, and when an NFC device is connected, it is given to the current activity process
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