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From: Russ Housley <housley@vigilsec.com>
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To: Lou Berger <lberger@labn.net>
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Subject: Re: [TOOLS-DEVELOPMENT] ical server issue
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Lou:

Time is part of the TLS handshake nonce.  But, no one checks it.  In =
fact, in TLS 1.3 it is being replaced with random bits.

Russ


On Sep 16, 2015, at 2:03 PM, Lou Berger wrote:

> I think ssl includes a time exchange, but I'm certainly not informed
> (let alone an expert) on this topic...
>=20
> On 09/16/2015 01:51 PM, Benson Schliesser wrote:
>> No, I think my "shot in the dark" was just a miss... I just spent a =
few
>> minutes just now looking at the cert, http headers, etc, and it all
>> seems correct to me. Sorry.
>> -B
>>=20
>>=20
>> On Wed, Sep 16, 2015 at 1:14 PM, Glen <glen@amsl.com
>> <mailto:glen@amsl.com>> wrote:
>>=20
>>    Hi Benson -
>>=20
>>    The iCal server is using the same global wildcard certificate that
>>    the rest of the IETF services are using.
>>=20
>>    I just reviewed it, and the time zone information appears to be
>>    correctly set.   The expiration date, for example, is:
>>=20
>>    8/11/2016 16:12:50 PM (8/11/2016 23:12:50 PM GMT)
>>=20
>>    Which seems to be more-or-less correct....
>>=20
>>    Apologies if I'm missing something or looking in the wrong place?
>>=20
>>    Glen
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>=20
>>    On Wed, Sep 16, 2015 at 10:06 AM, Benson Schliesser
>>    <bensons@queuefull.net <mailto:bensons@queuefull.net>> wrote:
>>=20
>>        Just a shot in the dark:  Given that this issue presents =
itself
>>        when Google Calendar pulls ical info via HTTPS, it occurs to =
me
>>        that perhaps the issue is with timezone info in the server's
>>        certificate..?=20
>>        -B
>>=20
>>=20
>>        On Wed, Sep 16, 2015 at 12:43 PM, Glen <glen@amsl.com
>>        <mailto:glen@amsl.com>> wrote:
>>=20
>>            Understood.  I'll make sure everyone here knows this, and =
if
>>            we locate any web pages with the less-desirable link, I'll
>>            make sure they get updated.
>>=20
>>            Thanks,
>>            Glen
>>=20
>>=20
>>            On Wed, Sep 16, 2015 at 9:40 AM, Lou Berger
>>            <lberger@labn.net <mailto:lberger@labn.net>> wrote:
>>=20
>>=20
>>=20
>>                On 9/16/2015 12:30 PM, Glen wrote:
>>> ...
>>> Interesting find about the https:// though...
>>                ..
>>=20
>>                Given the work around, I'm going to move on to other
>>                things.  As we
>>                scale out ical services, and more google users show =
up,
>>                we'll need to
>>                address this.  Certainly publishing the http version =
as
>>                1st choice for
>>                public calendars will avoid most of this.
>>=20
>>                Thanks,
>>                Lou
>>=20
>>=20
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>>=20
>>=20
>>=20
>>            _______________________________________________
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>>            TOOLS-DEVELOPMENT@ietf.org =
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>>            https://www.ietf.org/mailman/listinfo/tools-development
>>=20
>>=20
>>=20
>>        _______________________________________________
>>        TOOLS-DEVELOPMENT mailing list
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>=20
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