Re: message-id formatting

[Simson Garfinkel]

Hi, Ansgar.




On Mar 27, 2007, at 12:01 PM, Ansgar -59cobalt- Wiechers wrote:

Actually, message-id's frequently have internal meaning, depending on where they are issued. If Apple just wanted a random 128-bit number, they wouldn't put the dashes in it. There is internal structure --- a 32-bit number, three 16-bit numbers, and a 48-bit number. We just don't know what those numbers mean.

On 2007-03-27 Simson Garfinkel wrote:

On Mar 19, 2007, at 1:52 PM, Ansgar -59cobalt- Wiechers wrote:

On 2007-03-16 [EMAIL PROTECTED] wrote:

I am trying to find the format of mac.com message-ids. The following

are examples of message-id's received in emails from mac.com.

[EMAIL PROTECTED]
[EMAIL PROTECTED]

Any ideas?

for a regular expression to match those message-IDs?

  [0-9A-F]{8}-([0-9A-F]{4}-)[EMAIL PROTECTED]

I'm not sure if I understand your question correctly. Are you looking

No. He's looking for a meaning of what they mean.

Well, they're message-IDs, they don't mean anything by themselves.
They're just supposed to be unique identifiers for a given message
(e-mail, in particular).

Regards
Ansgar Wiechers
--
"All vulnerabilities deserve a public fear period prior to patches
becoming available."
--Jason Coombs on Bugtraq

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