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WEB LOGINS in Java Generating code 128 barcode in Java WEB LOGINS

WEB LOGINS using j2ee toincoporate barcode 128 in asp.net web,windows application NETMF In the previous sec code 128 barcode for Java tion you saw that HTTPS, when used with certificates, allows both a customer and a vendor to be positively identified. However, usually the customer doesn"t want to bother with the trouble of obtaining a certificate. Under these conditions, many businesses simply assume that if the credit card is valid, and the delivery address is acceptable to the credit card company, then all must be well.

You probably recognize this technique as the one generally used by mail-order houses, whether telephone or traditional-mail based businesses. Even when no positive identification of a customer takes place, many systems still use the notion of a Web login to allow them to tailor a client"s experience. The customer is given a user name and password over the Web, and is generally required to present this information before placing an order.

It"s important to recognize that this scheme never really gives a positive identification, rather it provides a degree of continuity between one visit and the next something along the lines of I still don"t positively know your real name, but I remember the nickname you told me and I remember our last meeting. Rather than providing security to the customer, this is more valuable to the vendor. This mechanism can be used to track purchases and other behavior, such as searches, to collect marketing information and to entice a customer into more purchases.

You can use Web logins to provide some degree of positive identification. If the login and password are provided using a mechanism that can verify the identity of that person, then a degree of confidence can be placed in the identity represented by that login/password combination. What kind of mechanism might provide such confidence Well, that"s a gray scale, in much the same way that it is with the distribution of keys, and similar techniques might reasonably be applied.

If you meet your customer in person and give him a login name/password pair, you can have a high degree of confidence in who has the pair (or at least, who had them originally). If you use the postal service to deliver a letter carrying the login name/password pair, you can have a fair degree of confidence that a login that results from that login name/password pair is likely to be originated from someone living at the address to which the letter was delivered, even if not from the originally intended recipient. You must evaluate the security of the distribution medium in terms of how it might be intercepted, and how confident you are that the end recipient is the correct one.

Even when a login/password pair has been correctly delivered, the mechanisms by which they are used are subject to potential attack. The server must verify the login/password pair, so this information must be sent over the connection. Now, sending this information unencrypted carries obvious risks, although it"s common to do this.

Even when the login name and password are encrypted by the client, you usually store them on the server so that the server can validate what it receives. In this case, you must assume that any successful attack on the Web server also compromises all the user names and passwords..

5.6 Protecting Systems Cryptography provid code-128b for Java es an important set of capabilities in a distributed computing environment, but although it has a part to play, it does not provide a complete solution to. the issues of prote cting systems against abuse or attack. In principle, these issues are addressed by the notions of identification, authentication, authorization, and resource control that were discussed earlier. In practice, these issues are more complex than first described.

The following sections examine some of the issues that surround protection of a distributed, Internet connected, computing system..
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