iPhone 应用内购买的安全性
我在我的应用程序中使用了应用内购买。我通过应用内购买购买书籍。成功付款后，我正在从我的服务器下载书籍。但我正在考虑安全问题。因为如果任何用户跟踪我的服务器的 URL 并下载书籍并无需任何付款即可使用。那么有人可以建议我如何为此启用安全性吗？
请建议 谢谢
I used in-app-purchase in my application. i am purchasing books from in-app-purchase. after successfully payment i am downloading books from my server. but i am thinking about the security. because if any user track the url of my server and download book and used without any payment. so can any one suggest how i enable security for this.
plz suggest
thx
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应用内购买交易包含来自 Apple 的收据。苹果还有一项服务可以验证该收据。因此，您的 iPhone 应用程序应在请求下载时将收据传递到您的服务器。然后，服务器可以在发送内容之前验证收据。
请参阅 http://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/StoreKitGuide/VerifyingStoreReceipts/VerifyingStoreReceipts.html#//apple_ref/doc/uid/TP40008267-CH104-SW1
The in-app purchase transaction contains a receipt from Apple. Apple also has a service that will verify that receipt. So your iPhone app should pass the receipt to your server when requesting the download. The server can then verify the receipt before sending the content.
See http://developer.apple.com/library/ios/#documentation/NetworkingInternet/Conceptual/StoreKitGuide/VerifyingStoreReceipts/VerifyingStoreReceipts.html#//apple_ref/doc/uid/TP40008267-CH104-SW1