Re: [cryptography] SSL is not broken by design

2011-09-25 Thread ianG
On 25/09/11 10:09 AM, James A. Donald wrote: On 2011-09-25 4:30 AM, Ben Laurie wrote: I'm just saying I think its hard to detect when a password is being asked for as part of the risk assessment. http and https do not know there are such things as logons. Logons need to be built into the

Re: [cryptography] SSL is not broken by design

2011-09-23 Thread Ben Laurie
On Thu, Sep 22, 2011 at 4:46 PM, Peter Gutmann pgut...@cs.auckland.ac.nz wrote: Ben Laurie b...@links.org writes: Well, don't tease. How? The link I've posted before (but didn't want to keep spamming to the list): http://www.cs.auckland.ac.nz/~pgut001/pubs/pki_risk.pdf That was a fun read

Re: [cryptography] SSL is not broken by design

2011-09-23 Thread Jon Callas
On Sep 23, 2011, at 11:17 AM, Ben Laurie wrote: On Thu, Sep 22, 2011 at 4:46 PM, Peter Gutmann pgut...@cs.auckland.ac.nz wrote: Ben Laurie b...@links.org writes: Well, don't tease. How? The link I've posted before (but didn't want to keep spamming to the list):

Re: [cryptography] SSL is not broken by design

2011-09-22 Thread Peter Gutmann
Ben Laurie b...@links.org writes: Well, don't tease. How? The link I've posted before (but didn't want to keep spamming to the list): http://www.cs.auckland.ac.nz/~pgut001/pubs/pki_risk.pdf Peter. ___ cryptography mailing list

Re: [cryptography] SSL is not broken by design

2011-09-20 Thread ianG
On 20/09/11 01:53 AM, Andy Steingruebl wrote: SSL wasn't designed to stop phishing, if sites don't deploy it with mutual-auth it can't possibly do so. Yes, it was. SSL was upgraded in v2 to provide a complete solution to the MITM. This is evident in v2's addition of certificates, and the

Re: [cryptography] SSL is not broken by design

2011-09-20 Thread ianG
On 18/09/11 20:02 PM, M.R. wrote: On 18/09/11 08:59, James A. Donald wrote: If we acknowledge that SSL is not secure, then need something that is secure. Nothing is either secure, or not secure. Any engineering system is either secure for the purpose it was designed for, or it is not. SSL is

Re: [cryptography] SSL is not broken by design

2011-09-19 Thread Andy Steingruebl
On Sun, Sep 18, 2011 at 2:01 PM, James A. Donald jam...@echeque.com wrote: SSL fails at low security stuff in that it allows phishing, snark You know what else fails at fighting phishing? - The locks on my car door - The fence surrounding my house - The full disk encryption on my laptop

Re: [cryptography] SSL is not broken by design

2011-09-19 Thread Marsh Ray
On 09/19/2011 10:53 AM, Andy Steingruebl wrote: You know what else fails at fighting phishing? - The locks on my car door Hmmm, what would a phishing attack on your car door locks look like? Perhaps someone could replace your car one night with a very similar-looking one, then when you're

Re: [cryptography] SSL is not broken by design

2011-09-19 Thread James A. Donald
On 2011-09-20 6:48 AM, James A. Donald wrote: On 2011-09-20 5:16 AM, Nico Williams wrote: As for out-of-band phishing, well, that's the hardest to protect against for the simple reason that some phishing e-mail is always bound to get through and prey on the elderly and naive. I'm not sure what

Re: [cryptography] SSL is not broken by design

2011-09-19 Thread James A. Donald
On 2011-09-20 8:46 AM, Nico Williams wrote: Of course. We need trusted UI paths. That's a hard problem. We know users dislike SAS (secure attention sequences). We know people want full-screen apps. These constraints make it almost impossible, if not impossible to get any sort of trusted UI

Re: [cryptography] SSL is not broken by design

2011-09-19 Thread Ben Laurie
On Tue, Sep 20, 2011 at 12:42 AM, James A. Donald jam...@echeque.comwrote: On 2011-09-20 8:46 AM, Nico Williams wrote: Of course. We need trusted UI paths. That's a hard problem. We know users dislike SAS (secure attention sequences). We know people want full-screen apps. These

Re: [cryptography] SSL is not broken by design

2011-09-18 Thread M.R.
On 17/09/11 17:56, lodewijk andré de la porte wrote: ...therefore assumes others assume SSL to be broken by design... SSL is not broken by design! SSL was designed to protect relatively low-value retail commerce, and it still does that job reasonably well. What failed were our mechanisms to

Re: [cryptography] SSL is not broken by design

2011-09-18 Thread James A. Donald
On 2011-09-18 4:34 PM, M.R. wrote: SSL was designed to protect relatively low-value retail commerce, and it still does that job reasonably well. What failed were our mechanisms to ensure that system usage regime does not exceed it's design parameters. If I can be flippant, SSL was a pedestrian

Re: [cryptography] SSL is not broken by design

2011-09-18 Thread M.R.
On 18/09/11 08:59, James A. Donald wrote: If we acknowledge that SSL is not secure, then need something that is secure. Nothing is either secure, or not secure. Any engineering system is either secure for the purpose it was designed for, or it is not. SSL is secure, since it is secure for the

Re: [cryptography] SSL is not broken by design

2011-09-18 Thread Peter Gutmann
Ian G i...@iang.org writes: When it came to actual failures ... they are silent. Still. But they love their merry-go-round :) There are ways to get off the merry-go-round. I've now put the slides for the talk I'd mentioned last week, that I did at EuroPKI, up at