Glenn Wilkinson glennzw

Code example using WebCrypto, File API, indexedDB, createObjectURL and Workers.

<input type="file" onsubmit="process_upload">

var workerjs=' \
  onmessage=function(evt) { \
		var encrypt=crypto.workersubtle.encrypt({name:"AES-CBC",iv:new Uint8Array(16)},evt.data[0]); \
		var buffer=evt.data[1]; \

Creating a "DMG installer" for OS X

A DMG Installer is convenient way to provide end-users a simple way to install an application bundle. They are basically a folder with a shortcut to the Applications directory but they can be customized with icons, backgrounds, and layout properties. A DMG file (.dmg) is a Mac OS X Disk Image file and it is used to package files or folders providing compression, encryption, and read-only to the package.

##Creating the DMG file #Disk Utility

	#!/usr/bin/env python
	# coding: UTF-8

	import socket
	import struct

	DEBUG = True
	DEBUG2 = False

	PTP_OC_GetDeviceInfo = 0x1001

	import numpy as np
	import pylab as pl

	x = np.random.uniform(1, 100, 1000)
	y = np.log(x) + np.random.normal(0, .3, 1000)

	pl.scatter(x, y, s=1, label="log(x) with noise")
	pl.plot(np.arange(1, 100), np.log(np.arange(1, 100)), c="b", label="log(x) true function")
	pl.xlabel("x")
	pl.ylabel("f(x) = log(x)")