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Submission Summary: 0 pending, 45 declined, 10 accepted (55 total, 18.18% accepted)

Graphics

+ - Detecting copy/paste and clone stamp image forgery->

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "Photoshop's clone tool provides a powerful way of covering up areas of an image. Uncovering those touched up areas can be done automatically using a recently published algorithm. This blog post describes the algorithm, with examples, and provides GPL licensed source code to image forgery detection."
Link to Original Source
Security

+ - Cryptographically hiding TCP ports->

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "The shimmer project implements a cryptographically-based system for hiding important (e.g. SSH) open ports in plain sight. By automatically forwarding from a range of ports all but one of which are honeypots and by changing the ports every minute only a user knowing a shared secret can determine the location of the real SSH server."
Link to Original Source
Software

+ - 'Wildfire' brings social news to Facebook

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "My newly released Wildfire application brings social news to Facebook by exploiting Facebook's social graph. Instead of "digging" stories, or "voting up/down", stories gain credibility only if you deem them worthy of being passed onto your friends. Wildfire offers users three views of the news: the news you and your friends deem interesting, the news that the great unwashed deem interesting and a random view. Randomness means that the Wisdom of Crowds is harnessed without succumbing to mob rule. And RSS integration means you can automatically bring your feeds to Facebook and pass on a subset of the stories. Personally, I started with the Slashdot feed."
It's funny.  Laugh.

+ - The Long Tail of Facebook Applications

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "1,225 Facebook applications. 73,109,074 installed in profiles. Hence, the average application has 59,700 users. The problem with the average is that it hides a savage reality of Facebook applications: some have many users, most have almost none. 86% of applications on Facebook have less than 10,000 users, with 62% having less than 1,000."
Spam

+ - Generating a CAPTCHA of your email address->

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "Web crawlers that search for email addresses on web sites are a big problem. My simple and free email image generator service generates a randomized image containing your email adddress. Simply copy and paste the relevant HTML to your web site to get a human-readable image that contains your email address but hides it from web crawlers."
Link to Original Source
Programming

+ - UseTheSource: social web site for snippets of code

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "If you've got a snippet of source code, a neat algorithm, a cool mashup, or just an explanation of some awful Windows API you can share it with UseTheSource a new web site I've put together. Using the same 'voting' style as popular social news sites, and divided by language, you can vote on the best snippets of the day. And the entire source of the site is open too."
Spam

+ - Trusted Email Connection Signing

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "SPF, Sender-ID and DomainKeys all require that email messages be received before their validity can be checked, but SMTP servers are overloaded with SPF-compliant and DomainKeys-signed spam. Trusted Email Connection Signing is an approach that allows an SMTP server to decide before any email is delivered whether a connection is trustworthy or not saving bandwidth and CPU on overloaded mail servers."
Bug

+ - Why you shouldn't be using a debugger

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "In this article I argue that you shouldn't be using a debugger. Instead you should be using your brain, printf and unit testing. After decades of improvement in programming languages, debuggers still suck. And they are not going to improve because the entire idea of breakpoints, single stepping and watching variables is the wrong way to debug."
Spam

+ - Strip mining spams: very clever use of animation

Submitted by
JohnGrahamCumming
JohnGrahamCumming writes "The ingenuity of spammers never ceases to amaze me. The latest attempt to evade smart spam filters is the use of an animated, transparent GIF that builds slowly to reveal its message. By cutting the image up the spammer hopes to evade spam filters that understand images; they've even thrown in random noise and frames that never get displayed to throw off filters."

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