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From: | Lyndon Nerenberg |
Subject: | Re: [Nmh-workers] Message-IDs and Content-IDs |
Date: | Thu, 19 Jul 2012 17:25:07 -0700 (PDT) |
User-agent: | Alpine 2.00 (BSF 1167 2008-08-23) |
That was mine, and no it doesn't have /dev/random. But, as I said earlier, I'd prefer to opt-out of this whole cryptographic host part concept anyway.
It's not cryptographic, it's just a case of trying to achieve uniqueness without too much effort. The world won't end if message-ids collide.
And don't get too caught up with local vs. host parts of message-id strings. The idea of <address@hidden> was an inexpensive way to generate a unique qualifier for the entropy, back when entropy was expensive. Today, entropy is cheap, so any opaque random string works fine. The only reason we keep the '@' requirement is for compatibility with software written to previous versions of the *822 specifications.
--lyndon
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