Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-31 Thread ianG
Hi Zooko, On 30/08/13 01:26 AM, zooko wrote: On Sat, Aug 24, 2013 at 09:18:33PM +0300, ianG wrote: I'm not convinced that the US feds can at this stage order the backdooring of software, carte blanche. Is there any evidence of that? (I suspect that all their powers in this area are from

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-30 Thread coderman
On Fri, Aug 23, 2013 at 9:37 PM, coderman coder...@gmail.com wrote: ... this is but a tame example of fiscal absurdity related to interception infrastructure; it is big business and truth is stranger than fiction! lawful intercept*, at any scale and jurisdiction, is a profit center. for US

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-29 Thread zooko
On Sat, Aug 24, 2013 at 09:18:33PM +0300, ianG wrote: I'm not convinced that the US feds can at this stage order the backdooring of software, carte blanche. Is there any evidence of that? (I suspect that all their powers in this area are from pressure and horse trading. E.g., the

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-24 Thread ianG
Hey Z, On 23/08/13 18:21 PM, Zooko Wilcox-OHearn wrote: Dear Jon: Thank you for your kind words and your detailed response. I am going to focus only on the issue that I think is most relevant and urgent for your customers and mine. That urgent issue is: what's the difference between the

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-23 Thread Zooko Wilcox-OHearn
Dear Jon: Thank you for your kind words and your detailed response. I am going to focus only on the issue that I think is most relevant and urgent for your customers and mine. That urgent issue is: what's the difference between the now-canceled Silent Mail product and the products that you are

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-23 Thread Warren Kumari
On Aug 23, 2013, at 12:19 PM, Nicolas Rachinsky crypto-ran...@ml.turing-complete.org wrote: * Zooko Wilcox-OHearn zo...@leastauthority.com [2013-08-23 15:21 +]: But before we get into the nuts and bolts of how to facilitate verification of end-to-end security, I want to hammer on the

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-22 Thread coderman
On 17 August 2013 13:50, Jon Callas j...@callas.org wrote: ... I *cannot* provide an argument of security that can be verified on its own. This is Godel's second incompleteness theorem. A set of statements S cannot be proved consistent on its own. (Yes, that's a minor handwave.) . . On Thu,

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-21 Thread Mansour Moufid
On 2013-08-17, at 1:50 PM, Jon Callas wrote: On Aug 17, 2013, at 12:49 AM, Bryan Bishop kanz...@gmail.com wrote: Would providing (signed) build vm images solve the problem of distributing your toolchain? Maybe. The obvious counterexample is a compiler that doesn't deterministically

[cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread Jon Callas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 Also at http://silentcircle.wordpress.com/2013/08/17/reply-to-zooko/ # Reply to Zooko (My friend and colleague, [Zooko Wilcox-O'Hearn](https://leastauthority.com/blog/author/zooko-wilcox-ohearn.html) wrote an open letter to me and Phil [on his

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread Bryan Bishop
On Sat, Aug 17, 2013 at 1:04 AM, Jon Callas j...@callas.org wrote: It's very hard, even with controlled releases, to get an exact byte-for-byte recompile of an app. Some compilers make this impossible because they randomize the branch prediction and other parts of code generation. Even when

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread Jon Callas
On Aug 17, 2013, at 12:49 AM, Bryan Bishop kanz...@gmail.com wrote: On Sat, Aug 17, 2013 at 1:04 AM, Jon Callas j...@callas.org wrote: It's very hard, even with controlled releases, to get an exact byte-for-byte recompile of an app. Some compilers make this impossible because they

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread James A. Donald
On 2013-08-17 4:04 PM, Jon Callas wrote: The problems run even deeper than the raw practicality. Twenty-nine years ago this month, in the August 1984 issue of Communications of the ACM (Vol. 27, No. 8) Ken Thompson's famous Turing Award lecture, Reflections on Trusting Trust was published. You

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread Nico Williams
On Sat, Aug 17, 2013 at 12:50 PM, Jon Callas j...@callas.org wrote: On Aug 17, 2013, at 12:49 AM, Bryan Bishop kanz...@gmail.com wrote: Would providing (signed) build vm images solve the problem of distributing your toolchain? A more interesting approach would be to use a variety of

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread Jeffrey Walton
On Sat, Aug 17, 2013 at 3:49 AM, Bryan Bishop kanz...@gmail.com wrote: On Sat, Aug 17, 2013 at 1:04 AM, Jon Callas j...@callas.org wrote: It's very hard, even with controlled releases, to get an exact byte-for-byte recompile of an app. Some compilers make this impossible because they

Re: [cryptography] Reply to Zooko (in Markdown)

2013-08-17 Thread Jon Callas
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Aug 17, 2013, at 11:00 AM, Ali-Reza Anghaie a...@packetknife.com wrote: On Sat, Aug 17, 2013 at 1:50 PM, Jon Callas j...@callas.org wrote: I hope I don't sound like a broken record, but a smart attacker isn't going to attack there, anyway. A