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POBase64 API Signature in iOS
 

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    <p>For Single Platform Integration i need to create a Base64 Signature <a href="https://singleplatform.jira.com/wiki/display/PubDocs/SinglePlatform+Publisher+Integration#SinglePlatformPublisherIntegration-BuildingValidURLs" rel="nofollow">https://singleplatform.jira.com/wiki/display/PubDocs/SinglePlatform+Publisher+Integration#SinglePlatformPublisherIntegration-BuildingValidURLs</a></p> <p>here is ruby script to create Base64 Signature, which work now i want to create it in iOS.</p> <pre><code>require 'hmac-sha1' require 'base64' def make_signature(uri_path, params, client_id, secret) padding_factor = (4 - secret.length % 4) % 4 secret += "=" * padding_factor secret = secret.gsub(/[-_]/, {"-" =&gt; "+", "_" =&gt; "/"}) binary_key = Base64.decode64(secret) params.update({"client" =&gt; client_id}) path = uri_path + "?" + params.collect{|k,v| "#{k}=#{v}"}.inject{|initial,cur| initial + "&amp;" + cur} digest = HMAC::SHA1.new(binary_key).update(path).digest digest = Base64.encode64(digest).gsub(/[+\/]/, {"+" =&gt; "-", "/" =&gt; "_"}).delete("=") return "#{path}&amp;sig=#{digest}" end puts 'http://api.singleplatform.co' + make_signature('/locations/haru-7', {}, "YOUR CLIENT ID", "YOUR SECRET") </code></pre> <h3>What I have tried</h3> <p>I have tried <a href="https://github.com/MealCatcher/objc-singleplatform" rel="nofollow">https://github.com/MealCatcher/objc-singleplatform</a> it not working. I have also tried Base64 &amp; iOS 7 CommonHMAC.h framework.</p> <pre><code>//To HMAC-SHA1 Signing static NSData *HMAC_SHA1(NSString *data, NSString *key) { unsigned char buf[CC_SHA1_DIGEST_LENGTH]; CCHmac(kCCHmacAlgSHA1, [key UTF8String], [key length], [data UTF8String], [data length], buf); return [NSData dataWithBytes:buf length:CC_SHA1_DIGEST_LENGTH]; } //To Retrieve your private key For URL NSString *uri_path = [NSString stringWithFormat:@"%@?client=%@",@"/locations/haru-7",@"clientID"]; NSMutableString *secret = [NSMutableString stringWithFormat:@"%@=",signingKey]; [secret stringByReplacingOccurrencesOfString:@"-" withString:@"+"]; [secret stringByReplacingOccurrencesOfString:@"_" withString:@"/"]; NSData *signature = HMAC_SHA1(uri_path, [secret base64DecodedString]); NSString *base64Signature = [signature base64EncodedString]; [base64Signature stringByReplacingOccurrencesOfString:@"+" withString:@"-"]; [base64Signature stringByReplacingOccurrencesOfString:@"/" withString:@"_"]; </code></pre> <p>Thanks in advance.</p> <p><strong>Full Solution:</strong></p> <p><a href="https://github.com/ronakjangir47/SinglePlatformSignature" rel="nofollow">https://github.com/ronakjangir47/SinglePlatformSignature</a></p>
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    1. COPlease add your iOS code equivalent to the ruby script you need help with, not a link to an entire project in github. The Ruby is rather impenetrable to a non-ruby programmer. The "Generating Valid Signatures "section of the linked is OTOH rather easy to understand. The first suggestion is to divide the problem by moving the `path` creation into a separate method. Add logging along the way in both the Ruby and Objective-C implementations to facilitate debugging and allow sequential progress. You have the basics in the code you have so far.
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    2. CO@Zaph i have updated my question with objective-c Code
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