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Security in .NET Creator ECC200 in .NET Security




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Security use .net vs 2010 barcode data matrix printer todeploy ecc200 on .net Microsoft Office Excel Website One of the primary reas DataMatrix for .NET ons smart cards exist is security. The card itself provides a computing platform on which information can be stored securely and computations can be performed securely.

The smart card also is highly portable and convenient to carry around on one"s person. Consequently, the smart card is ideally suited to function as a token through which the security of other systems can be enhanced. In financial systems, sensitive information such as bank account numbers can be stored on a smart card.

In electronic purse applications (cash cards and the like), the balance of some negotiable currency can be stored on a card and this currency can be credited or debited by external terminals (systems) in a local transaction. In physical access systems (e.g.

, opening the door to your office), a smart card can hold the key through which an electronic system can be enticed to unlock the door and allow entry. In network systems or even local computer systems, the smart card can hold the password through which a user is identified to the network or local system and through which privileges are granted by those systems to access information or processing capabilities. When viewed in the abstract, all these seemingly disjointed systems have very similar needs and operational characteristics, particularly with regard to the security.

of those systems. On th at basis, let"s examine some of the general characteristics of systems that collectively are referred to as security. The term security is often used in a rather loose fashion to refer to a variety of characteristics related to the performance of transactions between two or more parties in such a manner that everyone involved in the transaction trusts the integrity and, perhaps, the privacy of the transaction.

With the advent of computer networks and of highly distributed financial transactions, it is often the case that all the necessary parties to a transaction cannot be physically at the same place, or even at the same time, in order to participate in the transaction. Consider the purchase of an item with a credit card at an airport gift shop while on a trip. This transaction includes a number of distinct steps: presentation of the consumer"s credit card to the vendor validation by the vendor that the cardholder is really the owner of the card validation by the vendor that the credit card account represented by the card is valid validation by the vendor that the account maintains a sufficient credit balance to cover the cost of the item being purchased debiting the credit account represented by the card by the amount of the item purchased crediting the account of the vendor with the amount of the item purchased (less any fees due to the bank, etc.

related to the credit card transaction). In the performance of t data matrix barcodes for .NET his transaction, the cardholder would also like some assurances that much, if not all, of the information related to the transaction is held private. The credit card name, account number, and validation code should not be obtained by some unscrupulous character bent on making fraudulent purchases with the purloined information.

In the performance of a credit card transaction, there are actually many more components than previously mentioned. However, in just the steps noted, you can see that physical separation of the various parties to the transaction makes it difficult to guarantee that all these parties are satisfied about the integrity and privacy of the transaction. This section discusses the characteristics of security involved in supporting such a transaction.

To facilitate this discussion, the objectives of a security environment are first presented in somewhat abstract terms. After, some of the elements (we"ll call them players) of a widely distributed transaction system are examined. Then, some of the mechanisms currently in wide use to provide the desired characteristics through the identified players are examined.

Finally, some of the attacks used to thwart these security mechanisms are reviewed..
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