ks@svo.UUCP (07/07/86)
This is a cross-posting to net.crypt; some readers may find it interesting...
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/* Written 10:00 pm Jul 6, 1986 by ks@svo.UUCP in svo.UUCP:net.mail */
Okay, so I am a little slow in reading notes sometimes...
/* Written 8:56 pm Jun 28, 1986 by mark@cbosgd.UUCP in svo.UUCP:net.mail */
/* ---------- "Re: reading of other people's mail" ---------- */
[...]
I'd like to mention that RFC 822 has a hook in it specifically for
this. If you put a header "Encrypted: foo, bar" in there, this
tells the receiving user interface that the mail was encrypted with
method "foo" ...
At the time, I was hoping people would write some enhancements to
popular EMail user interfaces (e.g. Mail/mailx, MH, etc) that would
support this. So far I haven't seen any. ...
If somebody out there would implement this, perhaps we could render
this whole subject moot.
Mark
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I'm considering how to write a specification for code which would
transform a plaintext message into a cryptogram and back, and to
provide sufficient 'hooks' to tie it into a mailer (probably MH or
directly to MMDF-II).
I'm semi-convinced to use a vanilla NBS-DES implementation, but I
really have an aversion to block-mode ciphers. Perhaps someone
can suggest something else (NOT RSA, please). I'm most interested
in a classic cryptosystem which requires prior exchange of keys.
If anyone is interested in this sufficiently, I can begin to put
together SPECIFICATION suggestions, and a mailing list of interested
individuals. Writing the code comes after writing the spec.
Cheers.
Kurt F. Sauer
Tulsa, Oklahoma
Internet: ks@a.cs.okstate.EDU
UUCP: ks@svo.UUCP
"Remember, '01 FE 01 FE 01 FE 01 FE' is a semi-weak DES key."
-- John B. Boute'
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