在iOS的亚马逊产品广告API签名 [英] Amazon Product Advertising API Signature in iOS

问题描述

我试图访​​问Amazon的产品广告API在我的iPhone应用程序。创建签名似乎是艰难的部分。本页内容：

I am trying to access Amazon's Product Advertising API in my iOS application. Creating the signature seems to be the tough part. On this page:

<一个href="http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/rest-signature.html">http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/rest-signature.html

它说，计算一个RFC 2104兼容的HMAC与SHA256散列算法。亚马逊还提供了一个Java类来为你做这个：

It says to "Calculate an RFC 2104-compliant HMAC with the SHA256 hash algorithm". Amazon also provides a java class to do this for you:

<一个href="http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/AuthJavaSampleSig2.html">http://docs.amazonwebservices.com/AWSECommerceService/latest/DG/AuthJavaSampleSig2.html

有谁知道我可以在Objective-C做到这一点呢？我看着在AWS iOS的SDK，但它似乎不包括产品广告API。

Does anybody know how I can do this in Objective-C instead? I looked into the AWS iOS SDK, but it doesn't seem to include the Product Advertising API.

推荐答案

其实，AWS的iOS SDK中也有一个静态方法来处理所有身份验证的情况。 也许你应该瞄了一眼 AmazonAuthUtils.h ：

Actually the AWS iOS SDK DID have a static method to handle all auth situations. Maybe you should take a glance at the AmazonAuthUtils.h :

+(NSString *)HMACSign:(NSData *)data withKey:(NSString *)key usingAlgorithm:(CCHmacAlgorithm)algorithm;
+(NSData *)sha256HMac:(NSData *)data withKey:(NSString *)key;

您可以在文档中找到它：<一href="http://docs.amazonwebservices.com/AWSiOSSDK/latest/Classes/AmazonAuthUtils.html">http://docs.amazonwebservices.com/AWSiOSSDK/latest/Classes/AmazonAuthUtils.html

you can find it in the document: http://docs.amazonwebservices.com/AWSiOSSDK/latest/Classes/AmazonAuthUtils.html

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