Project description:
In today’s world of e-commerce and widespread credit card use, credit card storefront terminals have become common to almost all the stores, and thus big business. They are what allows us to use our credit cards in almost any store in the country. RSA public key encryption has become an industry standard because to crack it, the thief has to factor a number with unknown factorization, and that number can be chosen large enough so that time to factor it would be overwhelmingly large even on the fastest computers. For the final project, we designed a credit card transaction system with RSA encryption that takes credit card input from the terminal and sends it to the server controller, which buffers it, and outputs it to the server PC monitor when necessary or requested. While our system is not as secure as industry strength 56 or 128 bit encryption, because we are limited by the math we can do on this server, it does demonstrate all the important properties and functionality of RSA encryption, and can be scaled up if we were to migrate to a more powerful CPU.
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