meaningful and confidential subject lines in messages using pgp

Johan Wevers
Sat, 12 Feb 2000 22:00:09 +0100 (MET) wrote:

> -it would be possible to decide to use a fixed subject string for
> message B such as "Encrypted Mail Follows" (cf. urn:ietf:rfc:1421 PEM).
> mail clients could support the functionality of automatically
> extracting "message A" (or asking the user for permission to do
> so), upon reception of a message w/ the fixed subject line.
Isn't it much easier in this case to choose a fixed subject line like above and add anotrher header like X-Encrypted-Subject: with contains the subject, encrypted with RSA or El Gamal? A mail reader can then ask for the password once (or more if more secret keys are used), decrypt all these subject lines and do it completely transparant. -- ir. J.C.A. Wevers // Physics and science fiction site: // PGP public keys at