ietf-openpgp
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Re: PGP/MIME implementors: text mode vs. binary mode?

2001-03-05 11:17:36
On 2001-03-05 09:28:14 -0800, John W Noerenberg II wrote:

Have you considered the implications of format=flowed (rfc2646)?
Specifically:

4.6.  Digital Signatures and Encryption

    If a message is digitally signed or encrypted it is important that
    cryptographic processing use the on-the-wire Format=Flowed format.
    That is, during generation the message SHOULD be prepared for
    transmission, including addition of soft line breaks, space-stuffing,
    and [Quoted-Printable] encoding (to protect soft line breaks) before
    being digitally signed or encrypted; similarly, on receipt the
    message SHOULD have the signature verified or be decrypted before
    [Quoted-Printable] decoding and removal of stuffed spaces, soft line
    breaks and quote marks, and reflowing.

That's perfectly compatible with draft-05: Trailing white space will
be protected by the quoted-printable encoding of the flowed text, so
there is _no_ trailing whitespace in the signed material as the hash
algorithm sees it.

-- 
Thomas Roessler                     <roessler(_at_)does-not-exist(_dot_)org>
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