S3 Request Signing (generates Authorization headers)

s3-sign.js

//Performs the signing in the first example of:
//  http://docs.aws.amazon.com/AmazonS3/latest/dev/RESTAuthentication.html

//Requires:
//  http://www.defensivejs.com/djcl/encoding.js
//  http://www.defensivejs.com/djcl/hashing.js

var str =   "GET\n"+
            "\n"+
            "\n"+
            "Tue, 27 Mar 2007 19:36:42 +0000\n"+
            "/johnsmith/photos/puppy.jpg";

var k = "wJalrXUtnFEMI/K7MDENG/bPxRfiCYEXAMPLEKEY";

hashing.hmac_hash = hashing.sha1;
var result = encoding.base64_encode(encoding.hstr2astr(hashing.HMAC(k,str)));

print(result);