Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-18 Thread Stephen Frost
* Abhijit Menon-Sen (a...@2ndquadrant.com) wrote: > As a followup, I spoke to an IETF friend who's used and implemented both > SRP and SCRAM. He agrees that SRP is cryptographically solid, that it's > significantly more difficult to implement (and therefore has a bit of a > monoculture risk overall

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-18 Thread Alvaro Herrera
Abhijit Menon-Sen wrote: > P.S. I don't know why the SRP code was removed from LibreSSL; nor am I > sure how seriously to take that. It's possible that it's only because > it's (still) rather obscure. As I recall, the working principle of the LibreSSL guys is to remove everything that can't be un

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-18 Thread Abhijit Menon-Sen
As a followup, I spoke to an IETF friend who's used and implemented both SRP and SCRAM. He agrees that SRP is cryptographically solid, that it's significantly more difficult to implement (and therefore has a bit of a monoculture risk overall, though of course that wouldn't apply to us if we were to

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-18 Thread Abhijit Menon-Sen
At 2015-03-14 09:44:02 +0200, hlinn...@iki.fi wrote: > > Perhaps it would be time to restart the discussion on standardizing > SRP as a SASL mechanism in IETF. I haven't seen much evidence that there's any interest in doing this; in fact, I can't remember the author of the draft you pointed to bei

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-14 Thread Heikki Linnakangas
On 03/09/2015 04:43 PM, Abhijit Menon-Sen wrote: At 2015-03-09 13:52:10 +0200, hlinn...@iki.fi wrote: Do you have any insight on why the IETF working group didn't choose a PAKE protocol instead of or in addition to SCRAM, when SCRAM was standardized? Hi Heikki. It was a long time ago, but I

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-09 Thread Abhijit Menon-Sen
At 2015-03-09 13:52:10 +0200, hlinn...@iki.fi wrote: > > Do you have any insight on why the IETF working group didn't choose a > PAKE protocol instead of or in addition to SCRAM, when SCRAM was > standardized? Hi Heikki. It was a long time ago, but I recall that SRP was patent-encumbered: https:

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-09 Thread Heikki Linnakangas
Hi Abhijit, I didn't realize you were involved in the IETF process on SCRAM :-). On 03/09/2015 09:21 AM, Abhijit Menon-Sen wrote: At 2015-03-08 12:48:44 -0700, j...@agliodbs.com wrote: Since SCRAM has been brought up a number of times here, I thought I'd loop in the PostgreSQL contributor who

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-09 Thread Abhijit Menon-Sen
At 2015-03-08 12:48:44 -0700, j...@agliodbs.com wrote: > > Since SCRAM has been brought up a number of times here, I thought > I'd loop in the PostgreSQL contributor who is co-author of the SCRAM > standard to see if he has anything to say about implementing SCRAM as > a built-in auth method for Po

Re: [HACKERS] MD5 authentication needs help -SCRAM

2015-03-08 Thread Josh Berkus
All, Since SCRAM has been brought up a number of times here, I thought I'd loop in the PostgreSQL contributor who is co-author of the SCRAM standard to see if he has anything to say about implementing SCRAM as a built-in auth method for Postgres. Abhijit? -- Josh Berkus PostgreSQL Experts Inc.