Re: [liberationtech] RNG in Raspberry Pi

2013-10-03 Thread Andy Isaacson
On Wed, Oct 02, 2013 at 11:57:24PM -0500, Paul Elliott wrote: What is the quality of the Hardware RNG in the Raspberry Pi? Fairly unknown. The current driver used in Raspbian and so on, which exposes the RNG directly at /dev/hwrng is definitely *not* safe to use raw -- it needs a mixing pool at

[liberationtech] USB Block Erupters as RNG sources?

2013-10-03 Thread d.nix
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Curious; anyone know much about what these inexpensive (comparatively, price seems steadily falling) ASIC Block Erupter USB Bitcoin miners can be adapted to doing? Could they be repurposed as RNG sources? I know they are designed /

Re: [liberationtech] USB Block Erupters as RNG sources?

2013-10-03 Thread coderman
On Thu, Oct 3, 2013 at 2:43 AM, d.nix d@comcast.net wrote: ... Curious; anyone know much about what these inexpensive (comparatively, price seems steadily falling) ASIC Block Erupter USB Bitcoin miners can be adapted to doing? Could they be repurposed as RNG sources? at best you *might*

Re: [liberationtech] USB Block Erupters as RNG sources?

2013-10-03 Thread Peter Gutmann
d.nix d@comcast.net writes: Curious; anyone know much about what these inexpensive (comparatively, price seems steadily falling) ASIC Block Erupter USB Bitcoin miners can be adapted to doing? Could they be repurposed as RNG sources? Very little, and no. They're basically custom

[liberationtech] A Method for Identifying and Confirming the Use of URL Filtering Products for Censorship

2013-10-03 Thread Ronald Deibert
Hi Lib Tech The Citizen Lab published a new research paper on URL filtering and censorship, which presents an initial methodology for identifying and confirming the use of URL filtering products around the world. The authors leverage the fact that many of these products accept user-submitted

[liberationtech] A Method for Identifying and Confirming the Use of URL Filtering Products for Censorship

2013-10-03 Thread Ronald Deibert
Hi Lib Tech The Citizen Lab published a new research paper on URL filtering and censorship, which presents an initial methodology for identifying and confirming the use of URL filtering products around the world. We leverage the fact that many of these products accept user-submitted sites for

[liberationtech] Silent Phone source code available on GitHub

2013-10-03 Thread Petter Ericson
So, Silent Circle (well, Silent Phone) is finally open source! At least, the previous version, with the next one coming in a couple of weeks. This, to me, is absolutely wonderful news, as it is finally possible to get a proper security audit of the whole shebang. Github issue:

Re: [liberationtech] USB Block Erupters as RNG sources?

2013-10-03 Thread d.nix
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Very little, and no. They're basically custom Bitcoin-mining ASICs, I looked at one a while back for use in password-cracking and they're really not suited for it at all, you load a vector in and say go but since they're quite I/O-limited you

[liberationtech] As F.B.I. Pursued Snowden, an E-Mail Service Stood Firm

2013-10-03 Thread Michael Allan
DALLAS — One day last May, Ladar Levison returned home to find an F.B.I. agent’s business card on his Dallas doorstep. So began a four-month tangle with law enforcement officials that would end with Mr. Levison’s shutting the business he had spent a decade building and becoming an unlikely hero of