Survey of (potentially noncompliant) Serial Number Lengths

2019-03-18 Thread Rob Stradling via dev-security-policy
On 14/03/2019 10:59, Rob Stradling via dev-security-policy wrote: > On 13/03/2019 22:28, Richard Moore via dev-security-policy wrote: >> If any other CA wants to check theirs before someone else does, then now is >> surely the time to speak up. > > Someone else is in the process of checking...

Re: Survey of (potentially noncompliant) Serial Number Lengths

2019-03-18 Thread Rob Stradling via dev-security-policy
On 18/03/2019 17:05, Kurt Roeckx wrote: > On Mon, Mar 18, 2019 at 03:30:37PM +, Rob Stradling via > dev-security-policy wrote: >> >> When a value in column E is 100%, this is pretty solid evidence of >> noncompliance with BR 7.1. >> When the values in column E and G are both approximately

Re: Survey of (potentially noncompliant) Serial Number Lengths

2019-03-18 Thread Rob Stradling via dev-security-policy
On 18/03/2019 15:43, Rob Stradling via dev-security-policy wrote: > On 18/03/2019 15:30, Rob Stradling via dev-security-policy wrote: > >> On 14/03/2019 10:59, Rob Stradling via dev-security-policy wrote: >>> On 13/03/2019 22:28, Richard Moore via dev-security-policy wrote: >> If any other

Re: Survey of (potentially noncompliant) Serial Number Lengths

2019-03-18 Thread Kurt Roeckx via dev-security-policy
On Mon, Mar 18, 2019 at 03:30:37PM +, Rob Stradling via dev-security-policy wrote: > > When a value in column E is 100%, this is pretty solid evidence of > noncompliance with BR 7.1. > When the values in column E and G are both approximately 50%, this > suggests (but does not prove) that

Re: Survey of (potentially noncompliant) Serial Number Lengths

2019-03-18 Thread Rob Stradling via dev-security-policy
On 18/03/2019 15:30, Rob Stradling via dev-security-policy wrote: > On 14/03/2019 10:59, Rob Stradling via dev-security-policy wrote: >> On 13/03/2019 22:28, Richard Moore via dev-security-policy wrote: > >>> If any other CA wants to check theirs before someone else does, then now is >>> surely

Re: Updated Revocation Best Practices

2019-03-18 Thread Ryan Sleevi via dev-security-policy
On Sat, Mar 16, 2019 at 12:49 PM Wayne Thayer wrote: > Ryan - Thank you for the feedback. > > On Fri, Mar 15, 2019 at 6:14 PM Ryan Sleevi wrote: > >> While I realize the thinking is with regards to the recent serial number >> issue, a few questions emerge: >> >> 1) Based on the software vendor

Re: Survey of (potentially noncompliant) Serial Number Lengths

2019-03-18 Thread Hector Martin 'marcan' via dev-security-policy
On 19/03/2019 02.17, Rob Stradling via dev-security-policy wrote: > On 18/03/2019 17:05, Kurt Roeckx wrote: >> On Mon, Mar 18, 2019 at 03:30:37PM +, Rob Stradling via >> dev-security-policy wrote: >>> >>> When a value in column E is 100%, this is pretty solid evidence of >>> noncompliance

Re: CFCA certificate with invalid domain

2019-03-18 Thread Jakob Bohm via dev-security-policy
On 18/03/2019 02:05, Nick Lamb wrote: On Fri, 15 Mar 2019 19:41:58 -0400 Jonathan Rudenberg via dev-security-policy wrote: I've noted this on a similar bug and asked for details: https://bugzilla.mozilla.org/show_bug.cgi?id=1524733 I can't say that this pattern gives me any confidence that

Re: CAA records on a CNAME

2019-03-18 Thread Hector Martin 'marcan' via dev-security-policy
On 18/03/2019 16:42, Corey Bonnell wrote: Perhaps not very elegant, but you can encode an “allow all issuers” CAA RRSet by specifying a single iodef CAA record without any issue/issuewild records in the RRSet, which will probably be treated as permission to issue for  CAs. I say “probably”

Re: Pre-Incident Report - GoDaddy Serial Number Entropy

2019-03-18 Thread Hector Martin 'marcan' via dev-security-policy
On 15/03/2019 07:13, Jaime Hablutzel via dev-security-policy wrote: 64bits_entropy = GetRandom64Bits() //This returns 64 random bits from a CSPRNG with at least one bit in the highest byte set to 1 is, strictly speaking, not true. The best possible implementation for GetRandom64Bits(), as

Re: CAA records on a CNAME

2019-03-18 Thread Corey Bonnell via dev-security-policy
Perhaps not very elegant, but you can encode an “allow all issuers” CAA RRSet by specifying a single iodef CAA record without any issue/issuewild records in the RRSet, which will probably be treated as permission to issue for CAs. I say “probably” because the RFC wasn’t clear on the proper

Re: Pre-Incident Report - GoDaddy Serial Number Entropy

2019-03-18 Thread Hector Martin 'marcan' via dev-security-policy
On 15/03/2019 13:26, Peter Gutmann via dev-security-policy wrote: I actually thought it was from "Chosen-prefix collisions for MD5 and applications" or its companion papers ("Short chosen-prefix collisions for MD5 and the creation of a rogue CA certificate", "Chosen-Prefix Collisions for MD5 and