Smart card reader writer near me how to#

There are five different configurations to send commands to a card. When the command returns some data, the status bytes are the last two bytes returned by the command. BytesДЄn APDU command always returns at least two bytes that are the status bytes. The card will respond to a command with an array of bytes. This parameter is either the length of the sent data or the length of the expected data

APDU command descriptionДЄn APDU command is basically composed of the following bytes: APDU byte An APDU command is a set of bytes that are send to the card that will respond with a code and eventually with the data you want to read. For example, when you enter your PIN on your mobile phone or read a phone number in your SIM card directory, your mobile sends a set of commands to the card to perform the action.

Most people have a mobile phone and so use a Smart Card every day. Even if not necessary, a basic knowledge of Smartcard programming can help. This article assumes that you have read the Part 1 of this article and that you have some knowledge of XML. With the framework I describe here, you can easily chain commands and then describe the Smart Card elements of your application with an XML description. Most of the time, you would have to chain several commands to perform an action like reading or writing a file. The framework I propose is designed to simplify the development of a Smart Card application. Communication with a Smart Card uses a protocol named APDU to send the commands to the card, they are called APDU commands. Even if the classes are easier to use than the PC/SC functions, you still need to write code that is not always easy to understand. PC/SC is a set of APIs used to communicate with a Smart Card.

Smart card reader writer near me how to#

In the first part, I described how to develop a set of classes with C# to wrap the PC/SC API of Windows.

Download updated project (VS 2010) - 60.25 KB.