Re: [liberationtech] Cryptocat Censored in China

2012-12-23 Thread Nadim Kobeissi
Hi Martin, Thanks for the explanation, and thanks for everyone else for testing. I guess this was a false positive! I'll post a clarification that, at worst, this is just throttling. NK On Sun, Dec 23, 2012 at 5:28 AM, Martin Johnson greatf...@greatfire.orgwrote: Hi all, I'm the founder

Re: [liberationtech] Cryptocat Censored in China

2012-12-23 Thread Nadim Kobeissi
There: https://twitter.com/cryptocatapp/status/282768509992308737 NK On Sun, Dec 23, 2012 at 10:43 AM, Nadim Kobeissi na...@nadim.cc wrote: Hi Martin, Thanks for the explanation, and thanks for everyone else for testing. I guess this was a false positive! I'll post a clarification that,

Re: [liberationtech] Cryptocat Censored in China

2012-12-23 Thread Ralph Holz
Hi Martin, Thanks for the update. I remember we've been in contact about this once, and recall that for reasons of security you cannot fully explain how exactly you conduct the measurements (samples taken, positions, etc.). Fully appreciated, although it does make it much harder for others to

Re: [liberationtech] Cryptocat Censored in China

2012-12-23 Thread Ralph Holz
Hi, FWIW, our PKI site with our measurements and data sets gets reported as 100% blocked by GreatFire. ;) I wonder how I should interpret that. ;) https://en.greatfire.org/search/all/https%3A//pki.net.in.tum.de Ralph On 12/23/2012 04:28 AM, Martin Johnson wrote: Hi all, I'm the founder of

Re: [liberationtech] Cryptocat Censored in China

2012-12-23 Thread Ralph Holz
Hi, Sorry for the continous update. But while GreatFire reports our site as 100% blocked, I have no difficulty accessing it from my host in Shanghai. So, that's why I'd love to hear more about how you conduct your measurements. https://en.greatfire.org/search/all/https%3A//pki.net.in.tum.de

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Fabio Pietrosanti (naif)
On 12/22/12 8:58 AM, Nadim Kobeissi wrote: Dear LibTech, I would like to report that Cryptocat is now being censored in China. The URLs being 100% blocked are: - Cryptocat Project Website: https://project.crypto.cat - Cryptocat Development Blog: https://blog.crypto.cat It should be nice to

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Philipp Winter
On Sat, Dec 22, 2012 at 09:50:18AM +, Joss Wright wrote: On Sat, Dec 22, 2012 at 09:58:50AM +0200, Nadim Kobeissi wrote: I would like to report that Cryptocat is now being censored in China. The URLs being 100% blocked are: - Cryptocat Project Website: https://project.crypto.cat -

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Nadim Kobeissi
Philipp, Where are you testing from? According to GreatFire.org, both websites are being blocked via throttling. The same site also reported that crypto.cat(the main server) was censored on September 6, although this was luckily circumvented when we switched to a new IP on September 27. NK On

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Philipp Winter
On Sat, Dec 22, 2012 at 05:25:10PM +0200, Nadim Kobeissi wrote: Where are you testing from? According to GreatFire.org, both websites are being blocked via throttling. The same site also reported that crypto.cat (the main server) was censored on September 6, although this was luckily

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Ralph Holz
Hi Nadim, I can confirm Philipp's report - everything looks fine from my vantage point, too (Shanghai). The IP I see is 173.236.253.117, which is the same as from Europe. https access is possible. I wouldn't trust GreatFire.org's throttling metric - they had listed one of my private sites as

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Joss Wright
On Sat, Dec 22, 2012 at 05:48:34PM +0100, Ralph Holz wrote: PS: While I was at it, I checked the current DNS rewriting for twitter.com. It still points to a Korean IP. Some of the more fun DNS poisoning in my experiments[1] were =15 apparently unrelated servers across China all redirecting

Re: [liberationtech] Cryptocat Censored in China

2012-12-22 Thread Martin Johnson
Hi all, I'm the founder of GreatFire.org. Let me try to explain how we run our tests. I'd very much like to get your feedback on how our system can become more accurate and transparent. The two Crypto.cat URLs being tested can be viewed here: https://en.greatfire.org/https/project.crypto.cat