On 09/21/15 13:20, Matthew Woehlke wrote:
> On 2015-09-20 12:58, Phil Stracchino wrote:
>> A Privacy red-flag is a little harder to quantify.  About the only case
>> I can think of is if a message is encrypted, but with a key that has
>> been revoked or does not match the claimed sender.  But this should
>> probably be considered an Authenticity failure.
> 
> No, actually you were right the first time. Authentication is based on
> the integrity of the SENDER'S private key. Encryption is based on the
> integrity of the RECEIVER'S private key(s).

Doh!  You're correct of course.

> I could certainly imagine this happening if someone sends you a message
> encrypted using an old public key of yours that you happen to know is
> compromised, because the sender is not aware that it is compromised /
> revoked.

Yup.  That would be a valid case.


-- 
  Phil Stracchino
  Babylon Communications
  [email protected]
  [email protected]
  Landline: 603.293.8485

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