[plasma] SignedData vs. ContentInfo for keyatt-eps-kek
Trevor Freeman <trevorf@exchange.microsoft.com> Mon, 28 January 2013 18:45 UTC
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From: Trevor Freeman <trevorf@exchange.microsoft.com>
To: "Jim Schaad (jimsch@augustcellars.com)" <jimsch@augustcellars.com>
Thread-Topic: SignedData vs. ContentInfo for keyatt-eps-kek
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Date: Mon, 28 Jan 2013 18:45:16 +0000
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Cc: "plasma@ietf.org" <plasma@ietf.org>
Subject: [plasma] SignedData vs. ContentInfo for keyatt-eps-kek
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Hi Jim An observation on the CMS draft is that you currently have the keyatt-eps-kek defined as a SignedData structure. The standard CMS signature creation and verification APIs expect to have the ContentInfo structure as the output\input data stream as defined by S/MIME defines. Net result when using these standard APIs is we end up manually removing the ContentInfo structure on creation and adding it on verification when processing the keyatt-eps-kek attribute. While not strictly necessary, it would streamline the code path if we were to use ContentInfo as we can skip the manual adding\removal of the ContentInfo structure. Trevor
- [plasma] SignedData vs. ContentInfo for keyatt-ep… Trevor Freeman