... h1. Authorize.net
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h2. About Authorize.net
Authorize.Net enables merchants to authorize, settle and manage credit card and electronic check transactions via Web sites, retail stores, mail order/telephone order (MOTO) call centers and mobile devices.
* Reputation You Can Trust - More than 195,000 merchants trust Authorize.Net to manage their payment transactions securely and reliably.
* Easy to Integrate - Authorize.Net offers several methods for linking Web sites to the payment gateway. Web merchants can choose the method that best suits their business needs. Retail merchants integrate to the payment gateway via third-party POS solutions.
* Free Customer Support - Customer satisfaction is our number one priority. That's why we provide free customer support seven days a week via toll-free telephone, e-mail and online chat. Representatives are available Monday through Friday from 6 AM to 6 PM Pacific time.
* Scalability - Authorize.Net provides valuable solutions for cost-conscious merchants. If your business needs change, you can transition to the CyberSource Advanced service for enterprise-volume processing, international payments, advanced risk management services, and more.
* Business Partnerships - We are dedicated to providing products and value-adding services and tools that help merchants minimize risk, reduce costs and increase revenue.
h3. Advanced Integration Method (AIM)
The Advanced Integration Method is the recommended method of submitting transactions to the payment gateway. This method allows a merchant's server to securely connect directly to the payment gateway to submit transaction data. The merchant retains full control of the payment data collection and the user experience. This method requires merchants to be able to initiate and manage secure Internet connections.
h3. Simple Integration Method (SIM)
The Simple Integration Method is a relatively simple and secure method to submit transactions to the Payment Gateway. Merchants using this method have the option to let the gateway handle all the steps in transaction processing-payment data collection, data submission, and response to customer. Any request to the gateway is required to contain information that indicates to the gateway that the transaction is authentic and has been submitted for processing with the merchant's knowledge. This information is contained in a fingerprint that has to be generated by the merchant and included with every request submitted to the gateway. The fingerprint is a hash generated using the HMAC-MD5 hashing algorithm on a set of pre-defined transaction-specific fields. If the fingerprint cannot be validated by the gateway, the request will be rejected.
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