Smart Card App - After The Transaction I Need To Again Enter The Balance In The Smart Card?
Dec 21, 2009
i have to develop a ticketing package for a client...and he wants to use smart cards too...i would need to develop the package on a smart device i.e. a mobile application and will have to read the card on the device itself ...i have zeroed on the instrument from motorola. and an blue tooth connected printer to print the ticket.how to read the smart card ...i have searched a lot but have not found anything good.the smart card would contain the amt. balnce in it...and after the transaction i need to again enter the balance in the smart card...
i want to read data from smart card using card reader.i need vb.net code help as well as total process that mean what dll/exe will be needed and how can i determine that the card is inserted or ejected from card reader?
I want to detect when the smart card reader is connected to the computer. I used a loop structure/timer component but these solutions takes a lot from the processor capacity. There are other solutions?
P.S: when I connect normally the smart card reader to the computer, I don't have a letter where I can access the card reader.
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P.S 3: my code is:
Do While rgReaderState(0).lAtrLen > 0 If BackgroundWorker2.CancellationPending Then
I have a Digital Signature Cretificate card and card reader, certified by NIC certificate authority.Now I have to implement a login module for a web portal where user will be identified by DSC card.I am very biginner in smart card application field.I have many confution, which are listed below-
1. when i insert card into card reader how can i read data from card using vb.net?
I have got a Dell RT7D60 Keyboard which has a built in Smart-Card Reader. I have developed an application in vb.net and wondering if it is possible to allow users to log on to this application using smart card Authentication.I want to keep the authentication simple like instead of allowing user to enter username and password to open the application, i would want the application to ask for example, "Pls insert your Login-Card" and get the info from the card to authenticate the user.I have no clue for how to begin. Is it too complicated to integrate it in the .net application.
I'm trying to use certificates to sign documents. The first time that I sign, the OS prompts a dialog for user to set the PIN, but the next times it doesn't. For security reasons, I need that every time that I sign, the OS asks the PIN to the user.
This is the code:
''// create ContentInfo Dim content As New ContentInfo(bytesContenido) ''// create a signer
I've implemented a program that read/write data from a Smart Card. I noted that the reading/writing operation are slow (2 or 3 seconds, nothing for me, but during which I've noted that common users ar lost!).
So, I've thought to insert a progress bar to show the duration of these operation... but I don't know how to start on using of the progress bar in vb.net!
I was in away to develop a system to check any problems installed in a smart card. Such as checking wheter applet fully configure,checking serial no and etc.
I have installed smart card reader to my pc and it works when testing time. However, i need to make a project where whenever i insert smart card on the reader,the texbox in the screen will appear the information of the card. The product of smart card or so called mifare card is ACR120S.
I have a smart card reader/writer hooked up to my serial port. i've already coded the program to give access to the serial port. How would I go about getting my Card Reader/writer recognized in my program. I basically want to click the "read button" and whatever is on the current smart card im trying to read, pop up on the screen.
Is it possible to capture the raw signal from a WiFi card in the same way you can capture the signal from a sound card? (I already found code for working with a sound card and for drawing spectrograms) I'm wondering because it would make a cool radio-type project. I'd prefer a solution that integerates well with .net (VB or C#).My basic goal is to capture the ambient radio waves and build a primative "telescope" of sorts. Using the built in computer hardware is just the easiest way to accomplish this. If you have any other suggestions about how to accomplish this goal in a different way please post it as an answer also.
I want to create an application that can detect usb card reader device and when i swipe the card it should read.The below code WORKS PERFECTLY IN VB.But when i converted it to vb.net it is showing some problem.Below is the code for that.
[code]Seems to fetch data from my one and only internal IDE drive.The line objWriter.Write("Active: {0} ", queryObj("Active")) does not work if you change up the data in between the first set of quotes. Thus changing Active: {0} to Active: {1} causes an error that the Try Catch doesn't catch (this for...next is in a try catch).I assumed that the stuff inside the quotes was just text and could be changed to anything? Why doesn't the try catch catch it?Doesn't read a USB external drive when attached.i changed {0} to {1} and it crashes.
look at the following picture, which showing smart tag for DataGridView Now I'm creating new component and I want it to support showing some properties in Smart Tags, how to add the properties to the smart Tag?
I have a smart tag up and running for my user control but I also want to add a UITypeEditor collection editor to it as well. If I add the collection property to the smart tag in the usual way then I get the ellipse appearing as expected, then if you click on this you get the Collection Editor pop up but if you click ok in the Collection Editor I keep getting an error:
error using the drop down: unable to cast object of type BarChartControl.BarChartActionList to type BarChartControl.BarChart
In the DesignerActionList class I have the following:
Public Property Bars() As BarChartControl.BarItemCollection Get Return _linkedControl.Bars End Get
[code]....
and in the GetSortedActionItems() of the DesignerActionList class I have:
items.Add(New DesignerActionPropertyItem("Bars", "Bars", "Bars", "Manage bar collection."))
I downloaded VB because I was instructed to do so in order to be able to convert powerpoint files to smart notebook files.unfortunately, this does not seem to do the trick.
i created a smartdevice project,,(target platform =pocket pc;device=emulator; editor= vs2008). (i didnt write any code additional to template generated by vs2008 ) i tried to debug it with F11 hit(step into) ; vstudio asks me to locate a source file named 17d14f5c-a337-4978-8281-53493378c1071.vb. i dont know what this file is; same problem does not occur if i choose C# project.
Main development XP machine died so I got a new XP machine, installed SQL Server 2005 and VS 2005 Pro, and copied my files.Projects in new VS 2005 work except the Data Sources pane won't refresh and won't show all my data sources for an existing project (from the old machine.)
Error: " An exception occurred while trying to update the data smart tasks, they will be disabled. Key not valid for use in specified state."Update: I cannot even add a new data source to a brand new project. This is VS 2005 from my MSDN subscription.
Just today I've completed a trial version of my application - I then uploaded it to my webserver, and to my surprise a user already (almost one hour after I uploaded it) bypassed the protection and used the software 8 times (instead of the limit of 1 use)!
My "protection" was pretty weak. After the program has been used, it just writes a value to a single registry key. The user just deletes this registry key and can use the program once more, and so if someone does this enough times, he can use the software for as much time as needed.
Anyway, since I'm not really experienced in programming, do you guys have some nice working and possible easy to implement trial protection? I'm not looking for anything too serious, but it shouldn't be as easy to bypass as my current protection.
I am trying to write an application that accesses the SMART data from a hard disk, so I can show all the values and whether anything is over the threshold or failing etc Have spent many hours trawling the web without any success.
