Lajos Mészáros meszaros-lajos-gyorgy

Skagen Hybrid communication

Basics

Every command starts with 1 byte indicating if the command is a request-, write- or response-command. (All bytes are hexadecimal). Every group of bytes is little endian.

A request-command starts with 01 and gets a response-command from the watch, starting with 03. (See Requests for more info)

A write-command starts with 02. (See Writes for more info)

Create Root CA (Done once)

Create Root Key

Attention: this is the key used to sign the certificate requests, anyone holding this can sign certificates on your behalf. So keep it in a safe place!

openssl genrsa -des3 -out rootCA.key 4096

A timeline of the last four years of detecting good old window.localStorage.

Jan Lenhart, bless his heart contributed the first patch for support:

October 2009: 5059daa

	// @credit: http://stackoverflow.com/questions/8609289/convert-a-binary-nodejs-buffer-to-javascript-arraybuffer

	// From Buffer to ArrayBuffer:

	function toArrayBuffer(buffer) {
	var ab = new ArrayBuffer(buffer.length);
	var view = new Uint8Array(ab);
	for (var i = 0; i < buffer.length; ++i) {
	view[i] = buffer[i];
	}