Re: Diffie-Helman issue?

2015-10-21 Thread Kimmo Paasiala
On Tue, Oct 20, 2015 at 7:43 PM, Giancarlo Razzolini wrote: > Em 20-10-2015 10:25, Kimmo Paasiala escreveu: >> Someone correct me if I'm wrong but as far as I know the prime numbers >> used in DH group exchange are not secret but must be known by everyone >> (and couple

Re: Diffie-Helman issue?

2015-10-20 Thread Kimmo Paasiala
On Sat, Oct 17, 2015 at 11:57 AM, <22xtrv+f800c4addk...@guerrillamail.com> wrote: > According to > https://freedom-to-tinker.com/blog/haldermanheninger/how-is-nsa-breaking-so-m > uch-crypto/ > > "Since a handful of primes are so widely reused, the payoff, in > terms of connections they could

Re: Diffie-Helman issue?

2015-10-20 Thread Giancarlo Razzolini
Em 20-10-2015 10:25, Kimmo Paasiala escreveu: > Someone correct me if I'm wrong but as far as I know the prime numbers > used in DH group exchange are not secret but must be known by everyone > (and couple other parameters are also public) for the key exchange to > be possible in the first place.

Re: Diffie-Helman issue?

2015-10-18 Thread ropers
Also see: http://www.openbsd.org/58.html Search that page for 1024 (two occurrences). On 17 October 2015 at 14:03, Stuart Henderson wrote: > On 2015-10-17, <22xtrv+f800c4addk...@guerrillamail.com> < > 22xtrv+f800c4addk...@guerrillamail.com> wrote: > > According to > > >

Re: Diffie-Helman issue?

2015-10-17 Thread Gabriel Kihlman
> How is the prime set up for DH in > OpenSSH and is that something a user can change? Here is good place to start looking: == From: Damien Miller Subject: CVS: cvs.openbsd.org: src To: source-chan...@openbsd.org Date: Fri,

Diffie-Helman issue?

2015-10-17 Thread 22xtrv+f800c4addktto
According to https://freedom-to-tinker.com/blog/haldermanheninger/how-is-nsa-breaking-so-m uch-crypto/ "Since a handful of primes are so widely reused, the payoff, in terms of connections they could decrypt, would be enormous. Breaking a single, common 1024-bit prime would allow NSA to passively

Re: Diffie-Helman issue?

2015-10-17 Thread Stuart Henderson
On 2015-10-17, <22xtrv+f800c4addk...@guerrillamail.com> <22xtrv+f800c4addk...@guerrillamail.com> wrote: > According to > https://freedom-to-tinker.com/blog/haldermanheninger/how-is-nsa-breaking-so-m > uch-crypto/ > > "Since a handful of primes are so widely reused, the payoff, in > terms of