Secure Electronic Transaction (SET) Specification Book 2: Technical Specifications. Found at http://www.visa.com/cgi-bin/vee/sf/set/settech.html?2+0, February 1996.  Home/Search   Document Not in Database   Summary   Related Articles

....payment information is encrypted so that the merchant is unable to read it. The merchant and the cardholder are the only two parties who know what the cardholder is ordering. The system is heavily reliant on authentication through public key signatures, as distributed by a series of trust brokers. [10] A SET transaction bears a close resemblance to a standard credit card transaction. To initiate a purchase, a cardholder sends an order for some item to a merchant via the Internet. The merchant, in order to get approval for the transaction, sends a message to the Acquirer payment gateway, another ....

....network. The Issuer checks to see whether the cardholder is in good standing and returns the result, which propagates back to the merchant. The merchant has the choice of requesting payment in the same message as the request for approval, or in a separate message which takes the same path. [10] A whole transaction can be accomplished in six messages, but the number CHAPTER 2. BUILDING A COMMERCE SYSTEM 12 of messages can swell to 14 if a few optional but recommended pieces of the protocol are used. A simple transaction requires two encryptions: one for the message to the merchant and ....

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Secure Electronic Transaction (SET) Specification Book 2: Technical Specifications. Found at http://www.visa.com/cgi-bin/vee/sf/set/settech.html?2+0, February 1996.

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