Re: Return of i18n attacks with the help of wildcard certificates

2009-02-22 Thread Eddy Nigg
On 02/21/2009 11:19 PM, Paul Hoffman: I don't see how the attack could have been done without wildcards. CA guidelines say that certificates should not be issued with homographic characters that might cause confusion They do? Where? Some CA policies do. I can't recall right now, but EV might

Re: Return of i18n attacks with the help of wildcard certificates

2009-02-22 Thread Paul Hoffman
>I think part of what's going on here is a confusion between CAs and domain >name registrars. IIRC there was indeed some sort of agreement among domain >name registrars to implement special checking for internationalized domain >names. There was no such agreement. TLD registries ask which langu

Re: Return of i18n attacks with the help of wildcard certificates

2009-02-22 Thread Frank Hecker
Paul Hoffman wrote: UTR #36 is not a CA guideline, it is a guideline that some CAs might read and implement. I know of none that have. I think part of what's going on here is a confusion between CAs and domain name registrars. IIRC there was indeed some sort of agreement among domain name reg

Re: Return of i18n attacks with the help of wildcard certificates

2009-02-22 Thread Paul Hoffman
>On Sat, Feb 21, 2009 at 1:19 PM, Paul Hoffman wrote: >>>I don't see how the attack could have been done without wildcards. CA >>>guidelines say that certificates should not be issued with homographic >>>characters that might cause confusion >> >> They do? Where? > >I believe that Unicode Technica