For every request, we expect the following parameters:
apiKey: [ string ] get your API key by creating a new web app here.
signature = sha1(api_key+api_secret+timestamp+salt)
The server will return an error when the required parameter(s) missing from the request. You can visit https://creativesdk.adobe.com/docs/web/#/articles/highresolution/index.html and goto section 2 for more detail.
And use this test page to verify your signatures. http://output.jsbin.com/Iribaqa/5