[e-lang] A PictureBook of Secure Cooperation
fsp at info.ucl.ac.be
Wed Mar 30 04:26:51 EST 2005
On 29 Mar 2005, at 11:04, Fred Spiessens wrote:
> The Revoker holds only the power to revoke; it can be given to people
> who are not trusted with the actual file authority.
> You probable mean: The Revoker holds only the power to revoke. The
> revokable forwarder is given to people who are not trusted with
> everlasting authority to the actual file.
I reread the slide and I see now that you mean what you said: the
revoker does not provide any "actual" file authority. I disagree:
revocation-authority should still be considered actual authority over
the file, as it can not only influence who can access the file but
indirectly also the content of the file. It would be different probably
if the revoker could only affect the read authority.
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