Re: [Tails-dev] Secure way to set time using Hidden Service descriptors

2015-06-10 Thread intrigeri
Hi, [please don't Cc me, I read the list] It seems that this has slipped through the cracks... sorry! ban...@openmailbox.org wrote (12 Sep 2014 01:04:41 GMT) : The current secure timesyncing solution has some serious implications for security because they rely on an untrusted model using

Re: [Tails-dev] Secure way to set time using Hidden Service descriptors

2015-06-10 Thread bancfc
Hi Intrigeri, a lot has happened in this space since I last posted. The Hidden Service descriptor proposal didn't make sense so we query Hidden services directly and extract timestamps from their HTTP headers. At the moment in Whonix, we use reputable Onion Sites exclusively for time syncing

Re: [Tails-dev] Secure way to set time using Hidden Service descriptors

2015-06-10 Thread Daniel Kahn Gillmor
On Wed 2015-06-10 15:07:17 -0400, bancfc wrote: The Hidden Service descriptor proposal didn't make sense so we query Hidden services directly and extract timestamps from their HTTP headers. Which hidden service operators do you query? what counts as a reputable Onion Site ? Do those

[Tails-dev] Secure way to set time using Hidden Service descriptors

2014-09-11 Thread bancfc
The current secure timesyncing solution has some serious implications for security because they rely on an untrusted model using clearnet servers. Even though SSL is used, the broken CA model negates its protection and the adversary could easily MITM requests and send fake replies or