shavital at mac.com
Mon Jun 27 05:55:52 CEST 2005
According to man gpg:
Set the `for your eyes only' flag in the message. This
causes GnuPG to refuse to save the file unless the --output
option is given, and PGP to use the "secure viewer" with a
Tempest-resistant font to display the message. This option
--no-for-your-eyes-only disables this option.
In a few tests I did, using gpg 1.4.2rc2, self testing an encrypted
and signed text:
- without --output: the result is a message without text, that shows
'encrypted,signed' in its
- with --output [filename]: the result is an encrypted and signed
message that is processed by GnuPG as
any other such message, without any special warnings or limitations.
The same message processed with PGP is decrypted, verified and
displayed in a "secure-view" window with
TEMPEST Attack Prevention fonts.
At the receiving end, how does GnuPG processes a message that has
been encrypted using
"--for-your-eyes-only", without --output? Where does the actual text
of the message goes? Is there such a text?
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