Re: [cryptography] Duplicate primes in lots of RSA moduli

2012-02-22 Thread Thierry Moreau
While commenting about http://www.cs.bris.ac.uk/Research/CryptographySecurity/knowledge.html , Marsh Ray wrote: It talks about entropy exclusively in terms of 'unpredictability', which I think misses the essential point necessary for thinking about actual systems: Entropy is a measure of

Re: [cryptography] Duplicate primes in lots of RSA moduli

2012-02-22 Thread Marsh Ray
On 02/22/2012 09:32 AM, Thierry Moreau wrote: While commenting about http://www.cs.bris.ac.uk/Research/CryptographySecurity/knowledge.html , Marsh Ray wrote: It talks about entropy exclusively in terms of 'unpredictability', which I think misses the essential point necessary for thinking

[cryptography] To Virtualise or Not?

2012-02-22 Thread ianG
On 22/02/12 17:39 PM, Marsh Ray wrote: Please help with 'it.' I think I looked at it briefly a year or two ago and, frankly, where I got hung up was that it was written in Java. I hate to be a purist, but I just feel uncomfortable with crypto code written in a language that doesn't have

Re: [cryptography] Duplicate primes in lots of RSA moduli

2012-02-22 Thread Jeffrey Walton
On Wed, Feb 22, 2012 at 2:53 AM, James A. Donald jam...@echeque.com wrote: On 2012-02-22 12:31 PM, Kevin W. Wall wrote: 1) They think that key size is the paramount thing; the bigger the better. 2) The have no clue as to what cipher modes are. It's ECB by default. 3) More importantly, they

Re: [cryptography] To Virtualise or Not?

2012-02-22 Thread James A. Donald
On 2012-02-23 9:07 AM, ianG wrote: Um. I feel exactly the reverse. I feel uncomfortable with crypto code written in languages that guarantee buffer overflows, stack busting attacks, loose semantics at data and calling levels, a 5 x developer penalty, and an obsession about the metal not the

Re: [cryptography] Duplicate primes in lots of RSA moduli

2012-02-22 Thread Marsh Ray
On 02/22/2012 05:49 PM, Jeffrey Walton wrote: Remember, OpenSSL gave tacit approval: If it helps with debugging, I'm in favor of removing them, http://www.mail-archive.com/openssl-dev@openssl.org/msg21156.html. The full quote from Ulf Möller is: Kurt Roeckx schrieb: What I currently see as

Re: [cryptography] Duplicate primes in lots of RSA moduli

2012-02-22 Thread Jeffrey Walton
On Wed, Feb 22, 2012 at 7:37 PM, Marsh Ray ma...@extendedsubset.com wrote: On 02/22/2012 05:49 PM, Jeffrey Walton wrote: Remember, OpenSSL gave tacit approval: If it helps with debugging, I'm in favor of removing them, http://www.mail-archive.com/openssl-dev@openssl.org/msg21156.html. The

[cryptography] This talk was held today, at UBC's TRIUMF research facility

2012-02-22 Thread Randall Webmail
Speaker: Prof. Thomas Jennewein (University of Waterloo, Institute for Quantum Computing and Department of Physics and Astronomy) Title: Quantum Encryption and Quantum Science with Satellites Abstract: Space offers a very unique environment for quantum physics experiments at regimes for

Re: [cryptography] Duplicate primes in lots of RSA moduli

2012-02-22 Thread James A. Donald
On 2012-02-23 9:49 AM, Jeffrey Walton wrote: On Wed, Feb 22, 2012 at 2:53 AM, James A. Donaldjam...@echeque.com wrote: On 2012-02-22 12:31 PM, Kevin W. Wall wrote: 1) They think that key size is the paramount thing; the bigger the better. 2) The have no clue as to what cipher modes are. It's

[cryptography] Bitcoin in endgame

2012-02-22 Thread ianG
On the crypto topic that everyone loves to hate, Bitcoin, the expected attack has begun. http://financialcryptography.com/mt/archives/001363.html Philipp Guering and I wrote a paper that explains how this will fall out. http://iang.org/papers/BitcoinBreachesGreshamsLaw.pdf Although in the

Re: [cryptography] Bitcoin in endgame

2012-02-22 Thread John Levine
I would also argue the Wall Street Bankers would have been happy to legitmize BitCoin if they got a cut (confer: derivatives). Hmmn. You know how painful it is when finance types pontificate about cryptography that they don't understand? Well, ... Let me just say that it is not a bug in the

Re: [cryptography] Bitcoin in endgame

2012-02-22 Thread James A. Donald
On 2012-02-23 12:11 PM, ianG wrote: On the crypto topic that everyone loves to hate, Bitcoin, the expected attack has begun. http://financialcryptography.com/mt/archives/001363.html Philipp Guering and I wrote a paper that explains how this will fall out.