--- developer:sample_codes:net_hosted_secure_cards_amazon_solution [2018/06/26 12:11]
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+++ developer:sample_codes:net_hosted_secure_cards_amazon_solution [2018/12/03 10:26]
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+====== .NET Hosted Secure Card Amazon Solution ======
+This solution requires our Card Storage solution called **SecureCard**. It's designed so that the checkout is like the Amazon checkout, in that the cardholder must register a card for their account and then they can use, update or delete the card info in their account settings. The integration is quite complex though, as there is a lot of functionality.
+The first thing they will need to do is register their card.
+Full documentation can be found in **[[developer:api_specification|API Specification]]**.
+If you are using an ACH integration, full documentation can be found in **[[developer:api_specification_ach_jh|API Specification - ACH JH]]**.
+Here is some sample code to help in this integration:
+**The code for generating a HASH is:**
+<code csharp>
+using System.Security.Cryptography;
+using System.Text;
+protected static String GetHash(String plainString)
+{
+    byte[] toBeHashed = System.Text.Encoding.UTF8.GetBytes(plainString);
+    MD5CryptoServiceProvider cryptHandler = new MD5CryptoServiceProvider();
+    byte[] hash = cryptHandler.ComputeHash(toBeHashed);
+    String hashed = "";
+    foreach (byte i in hash)
+    {
+        if (i < 16)
+            hashed += "0" + i.ToString("x");
+        else
+            hashed += i.ToString("x");
+    }
+    return hashed;
+}
+</code>
+**You should generate the "datetime" value using:**
+<code csharp>
+System.DateTime.Now.ToString("dd-MM-yyyy:HH:mm:ss:fff");
+</code>
+You should then store the card token details as per the sample code.
+You can then in the future update the card details using the same sample code.
+You can also delete it using the "**XmlSecureCardDelRequest**" method in our **XML API**.
+You may also require 3D Secure - refer to the 3D Secure section on the integration guide.
+In this case you will implement the 3D secure before the XML payment, and then include the MPIREF in the payment request.
+When you want to pay using a card, you can do this by using this XML sample code.
+Note that you will have to use the "Card Reference" from before in place of the Card Number - you will not need to send the Expiry Date - and the Card Type will be "**SECURECARD**", but the sample code takes care of all of this.

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