Feeds

Google puts Chrome updates on Courgette-only diet

Squeezing the zucchini juice

The Power of One eBook: Top reasons to choose HP BladeSystem

Google has shrink-wrapped the way it delivers updates to its Google Chrome browser by releasing a new system dubbed Courgette.

Mountain View wonks decided to tweak the way it automatically sends out code to Chrome, after finding that some of the updates were slowing down Windows-based computers, as well as making them more open to attack.

The Courgette system aims to work around that problem by spitting out a compressed “diff” update to users’ machines, explained Google in a Chromium Developer blog post yesterday.

“It is an anathema to us to push out a whole new 10MB update to give you a ten line security fix. We want smaller updates because it narrows the window of vulnerability,” said Google software engineer Stephen Adams.

“If the update is a tenth of the size, we can push ten times as many per unit of bandwidth. We have enough users that this means more users will be protected earlier.”

The diff algorithm pushes out a stealth update that takes the old version of Chrome and generates the latest iteration of the browser without any user interaction required.

Courgette replaces the bsdiff algorithm that Google had previously used.

Google has more about the new fitter-happier-more-productive algorithm it's developed here. ®

Designing a Defense for Mobile Applications

More from The Register

next story
DARPA-derived secure microkernel goes open source tomorrow
Hacker-repelling, drone-protecting code will soon be yours to tweak as you see fit
How long is too long to wait for a security fix?
Synology finally patches OpenSSL bugs in Trevor's NAS
Don't look, Snowden: Security biz chases Tails with zero-day flaws alert
Exodus vows not to sell secrets of whistleblower's favorite OS
Roll out the welcome mat to hackers and crackers
Security chap pens guide to bug bounty programs that won't fail like Yahoo!'s
HIDDEN packet sniffer spy tech in MILLIONS of iPhones, iPads – expert
Don't panic though – Apple's backdoor is not wide open to all, guru tells us
Researcher sat on critical IE bugs for THREE YEARS
VUPEN waited for Pwn2Own cash while IE's sandbox leaked
Four fake Google haxbots hit YOUR WEBSITE every day
Goog the perfect ruse to slip into SEO orfice
prev story

Whitepapers

Designing a Defense for Mobile Applications
Learn about the various considerations for defending mobile applications - from the application architecture itself to the myriad testing technologies.
Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Top 8 considerations to enable and simplify mobility
In this whitepaper learn how to successfully add mobile capabilities simply and cost effectively.
Seven Steps to Software Security
Seven practical steps you can begin to take today to secure your applications and prevent the damages a successful cyber-attack can cause.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.