php function to generate signed_body sha256 HMAC in instagram Iphone app

I need a php function that can generate a signed_body as used by instagram. It must be able to produce the same strings the actual instagram app does and I can give examples/help if necessary.

the signed_body used by instagram application during account creation process seems to be a sha256 HMAC

I know you can generate an sha256 HMAC in php with the following code

hash_hmac('sha1', "Message", "Secret Key");

What I need to know from whomever takes this project is what is how to obtain the secret key that is used to generate the sha256 HMAC and what part of the data you send on signup is used as the "Message" to also generate the sha256 HMAC.

Skills: Assembly, iPhone, Java, PHP

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About the Employer:
( 57 reviews ) Arlington, United States

Project ID: #4320250

5 freelancers are bidding on average $310 for this job


I am willing to share the secret key if you can pay me good amount for the same

$750 USD in 4 days
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Hi, Please see your private msg TY

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Please see PMB.

$400 USD in 5 days
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Dear sir After reading your project php function details,we are interested in this project and would like to bid on this project.please check your PMB

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please check my pm

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