With the rapid development of technology today, dealers priority mode used when giving a statement on the distributor is relatively old because of priority dealers still have to come to this langsung.hal distributor of course take time and cost. Yet today many Web-based sales system with the aim of facilitating exchange of information / data remotely so that more efficient and no cost, but the weakness of using the WEB system security is not guaranteed confidentiality of data transmission. Therefore in this final project created a system Imlementasi IDEA Cryptography Methods in Priority dealer for Sales and Booking Service Mobile-based WEB. So the priority dealer does not need to come directly to distributors only to make the purchase and ordering goods. Simply by logging on WEB server distributor sales reports and ordering can be performed by the priority of security dealers and confidentiality of data or messages may be secured from other parties. The results of this final project is service Generate sales and reservations system, Mobile-based WEB using IDEA cryptographic algorithm so that when sending data or messages from the server to a priority dealer distributor gated. Keywords: Cryptography, IDEA, WEB server, Priority dealer.
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