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Gary Edwards

Flex/Flash: About Singleton, Threads and Flex | Blogging about Software Development - 0 views

www.bloggingaboutjava.org/...out-singleton-threads-and-flex

flash flex java swf

shared by Gary Edwards on 12 Jun 08 - Cached
  • Flex applications are, like Flash applications, compiled into an SWF file. Once a user visits the webpage containing your Flex application, the SWF file is downloaded to and run from the client computer. Instead of a seperate session each user receives their own copy of your Flex application. The client computer runs the Flash VM, which in turn fires up the local copy of your Flex application. Furthermore, Flex uses the Actionscript scripting language. The current version is Actionscript 3. Actionscript 3 is single-threaded. By now you probably already see where this is going. The single-threaded nature of Flex applications means synchronization is not required.
  • Gary Edwards on 12 Jun 08
     
    Flex applications are, like Flash applications, compiled into an SWF file. Once a user visits the webpage containing your Flex application, the SWF file is downloaded to and run from the client computer. Instead of a seperate session each user receives their own copy of your Flex application. The client computer runs the Flash VM, which in turn fires up the local copy of your Flex application. Furthermore, Flex uses the Actionscript scripting language. The current version is Actionscript 3. Actionscript 3 is single-threaded. By now you probably already see where this is going. The single-threaded nature of Flex applications means synchronization is not required.
  • anonymous on 28 Sep 13
     
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Paul Merrell

ISPs say the "massive cost" of Snooper's Charter will push up UK broadband bills | Ars ... - 0 views

arstechnica.co.uk/...ill-push-up-uk-broadband-bills

surveillance state UK ISPs cost Snooper's-Charter

shared by Paul Merrell on 14 Nov 15 - No Cached
  • How much extra will you have to pay for the privilege of being spied on?
  • UK ISPs have warned MPs that the costs of implementing the Investigatory Powers Bill (aka the Snooper's Charter) will be much greater than the £175 million the UK government has allotted for the task, and that broadband bills will need to rise as a result. Representatives from ISPs and software companies told the House of Commons Science and Technology Committee that the legislation greatly underestimates the "sheer quantity" of data generated by Internet users these days. They also pointed out that distinguishing content from metadata is a far harder task than the government seems to assume. Matthew Hare, the chief executive of ISP Gigaclear, said with "a typical 1 gigabit connection to someone's home, over 50 terabytes of data per year [are] passing over it. If you say that a proportion of that is going to be the communications data—the record of who you communicate with, when you communicate or what you communicate—there would be the most massive and enormous amount of data that in future an access provider would be expected to keep. The indiscriminate collection of mass data across effectively every user of the Internet in this country is going to have a massive cost."
  • Moreover, the larger the cache of stored data, the more worthwhile it will be for criminals and state-backed actors to gain access and download that highly-revealing personal information for fraud and blackmail. John Shaw, the vice president of product management at British security firm Sophos, told the MPs: "There would be a huge amount of very sensitive personal data that could be used by bad guys.
  • ...2 more annotations...
  • The ISPs also challenged the government's breezy assumption that separating the data from the (equally revealing) metadata would be simple, not least because an Internet connection is typically being used for multiple services simultaneously, with data packets mixed together in a completely contingent way. Hare described a typical usage scenario for a teenager on their computer at home, where they are playing a game communicating with their friends using Steam; they are broadcasting the game using Twitch; and they may also be making a voice call at the same time too. "All those applications are running simultaneously," Hare said. "They are different applications using different servers with different services and different protocols. They are all running concurrently on that one machine." Even accessing a Web page is much more complicated than the government seems to believe, Hare pointed out. "As a webpage is loading, you will see that that webpage is made up of tens, or many tens, of individual sessions that have been created across the Internet just to load a single webpage. Bluntly, if you want to find out what someone is doing you need to be tracking all of that data all the time."
  • Hare raised another major issue. "If I was a software business ... I would be very worried that my customers would not buy my software any more if it had anything to do with security at all. I would be worried that a backdoor was built into the software by the [Investigatory Powers] Bill that would allow the UK government to find out what information was on that system at any point they wanted in the future." As Ars reported last week, the ability to demand that backdoors are added to systems, and a legal requirement not to reveal that fact under any circumstances, are two of the most contentious aspects of the new Investigatory Powers Bill. The latest comments from industry experts add to concerns that the latest version of the Snooper's Charter would inflict great harm on civil liberties in the UK, and also make security research well-nigh impossible here. To those fears can now be added undermining the UK software industry, as well as forcing the UK public to pay for the privilege of having their ISP carry out suspicionless surveillance.
Paul Merrell

Here's How You Can Find Out If The NSA Shared Your Data With British Spies - Forbes - 0 views

www.forbes.com/...d-your-data-with-british-spies

surveillance state NSA GCHQ info-request

shared by Paul Merrell on 18 Feb 15 - No Cached
  • In the UK earlier this month, human rights groups Liberty and Privacy International were cheered by a tribunal decision that declared GCHQ’s access to NSA spies’ data illegal. Though it was a hollow victory, as the tribunal also declared all current activities, including all those blanket surveillance projects much derided by free speech activists, entirely legal. The practices previously broke the law because the public was unaware of what safeguards were in place for the UK’s access to data from NSA programs like Prism; as soon as Snowden blew everything wide open the snoops had to explain themselves, and that was enough for the tribunal to confirm the legality of GCHQ’s operations. But the case has had one significant effect: anyone can now figure out if their data was illegally shared by the agencies. Privacy International has set up a simple webpage that anyone in the world can sign up to. You can visit the page here.
  • Once the UK Investigatory Powers Tribunal has determined whom was affected, it has to inform them. Though participants should find out whether their data were unlawfully obtained by GCHQ from the millions of private communications hoovered up by the NSA up until December 2014, it won’t be anytime soon. Privacy International warned in its FAQs: “Count on it being many months, and likely years before this action is completed.” And somewhat ironically Privacy International has to collect participant’s information, including their name and email address, to supply the service. They may ask for more information from willing participants once the group has determined if more is required from the IPT. Anyone who wants to submit directly to the tribunal can do so here.
Gonzalo San Gil, PhD.

#KeepItOn - Access Now - 0 views

www.accessnow.org/keepiton

#KeepItOn governmets international authorities politics policies keep web www pages webpages up democract built upon differences

shared by Gonzalo San Gil, PhD. on 24 Nov 16 - No Cached
  • Gonzalo San Gil, PhD. on 24 Nov 16
     
    "This December, world leaders will meet in Mexico to discuss the future of the internet. We're going to be there calling on them to put an end to internet shutdowns."
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