Feeds

China strengthens Great Firewall ahead of anniversary

Tor users targeted

5 things you didn’t know about cloud backup

The Chinese government has used its unrivalled net censorship apparatus to attack parts of the Tor network ahead of the 60th anniversary of communist rule, according to activists.

The Tor Project Inc, the non-profit that oversees development of the network, said China's Great Firewall began blocking IP addresses on Friday. The news follows an update last week to blocking technology used by ISPs, known as "Blue Shield".

"We knew this day would come," the Tor Project said.

Tor - originally developed for the US Navy - is used by many Chinese dissidents to conceal their identity and protect their privacy. It allows them to access banned material such as websites about Tibet, the Tiananmen Square Massacre and the recent Uigur uprising.

The Tor network was also recently widely used in Iran to disseminate information about violent clashes following the presidential election.

About 80 per cent of public relays are now blocked inside China, the Tor Project said. Public relays are most users' gateway to Tor, which beats tracking and blocking by encrypting and bouncing traffic around a random global labyrinth of proxy servers run by members of the network.

China's Great Firewall is implemented by the country's ISPs so it is able to block this first hop onto Tor using the directory of public relays. However, Chinese users are cannot be completely denied access to Tor. It is also possible to hop on to the network via a "bridge" relay.

Bridge relays were added to the network as a counter-measure to blocking. No list of their IP addresses is publicly available.

The Tor Project called on members of the network to volunteer to run more bridge relays to help Chinese users. There are more details here. ®

The essential guide to IT transformation

More from The Register

next story
Britain's housing crisis: What are we going to do about it?
Rent control: Better than bombs at destroying housing
GCHQ protesters stick it to British spooks ... by drinking urine
Activists told NOT to snap pics of staff at the concrete doughnut
Top beak: UK privacy law may be reconsidered because of social media
Rise of Twitter etc creates 'enormous challenges'
What do you mean, I have to POST a PHYSICAL CHEQUE to get my gun licence?
Stop bitching about firearms fees - we need computerisation
Redmond resists order to hand over overseas email
Court wanted peek as related to US investigation
Ex US cybersecurity czar guilty in child sex abuse website case
Health and Human Services IT security chief headed online to share vile images
We need less U.S. in our WWW – Euro digital chief Steelie Neelie
EC moves to shift status quo at Internet Governance Forum
prev story

Whitepapers

Endpoint data privacy in the cloud is easier than you think
Innovations in encryption and storage resolve issues of data privacy and key requirements for companies to look for in a solution.
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.
Advanced data protection for your virtualized environments
Find a natural fit for optimizing protection for the often resource-constrained data protection process found in virtual environments.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Next gen security for virtualised datacentres
Legacy security solutions are inefficient due to the architectural differences between physical and virtual environments.