ietf-openpgp
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Re: "The OpenPGP mail and news header" extenssion

2005-08-14 08:30:55

Jeroen Massar wrote:
On Sun, 2005-08-14 at 14:24 +0100, Ben Laurie wrote:

Jeroen Massar wrote:

<SNIP>

* sign(encrypt(message))

<SNIP>

More importantly, perhaps, Krawczyk has shown that, in general, sign then encrypt is insecure.


Which exact paper do you mean?

http://eprint.iacr.org/2001/045

Also note that when you say that that is insecure you are also saying
that either/both the signing and/or the encryption are insecure in which
case the solution to the problem should be sought in a different
place...

I have no idea what you mean.

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