Joshua Sharkey ziggyjosh16

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DinoChiesa / httpsig-in-postman-pre-request-script.js

Created January 26, 2016 23:18

pre-request script for Postman, to perform HttpSignature calculation. Also SHA-256 message digest.

	function computeHttpSignature(config, headerHash) {
	var template = 'keyId="${keyId}",algorithm="${algorithm}",headers="${headers}",signature="${signature}"',
	sig = template;

	// compute sig here
	var signingBase = '';
	config.headers.forEach(function(h){
	if (signingBase !== '') { signingBase += '\n'; }
	signingBase += h.toLowerCase() + ": " + headerHash[h];
	});