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[pkix] DER encoding in RFC 3161

Koichi Sugimoto <koichi.sugimoto@globalsign.com> Tue, 28 July 2020 07:58 UTC

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From: Koichi Sugimoto <koichi.sugimoto@globalsign.com>
To: "pkix@ietf.org" <pkix@ietf.org>
Thread-Topic: DER encoding in RFC 3161
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Date: Tue, 28 Jul 2020 07:58:27 +0000
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Subject: [pkix] DER encoding in RFC 3161
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Hello PKIX members,

 

RFC 3161 specifies "The eContent SHALL be the DER-encoded value of TSTInfo."
in "2.4.2. Response Format"

Why RFC 3161 does not require DER-encoded value for full time-stamp token
(CMS data)?

 

On the other hand, following protocol encoding seems to require all
DER-encoded for entire time-stamp message.

 

3.1. Time-Stamp Protocol Using E-mail

3.2. File Based Protocol

3.3. Socket Based Protocol

3.4. Time-Stamp Protocol via HTTP

 

This seems time-stamp token requires DER-encoded indirectly.

 

Regards,

Koichi Sugimoto.

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