On 11.11.2006 10:55, Boyan Tabakov wrote: > On 10.11.2006 23:47, Michel D'HOOGE wrote: > > > This is because to verify the signature you gnupg software needs to > > > have the corresponding public key. The default KMail settings are to > > > not download automatically missing public keys. See Security Settings > > > in KMail configuration window. > > > > Here, I saved the message with its signature and then modified it > > directly with Kate. The mail is also red, but the given explanation is a > > bit different. However in both cases, it means that you can't trust what > > you read. In the first case, this is because you cannot trust the key > > used to sign the mail (and then someone could have made a fake one with > > the same email address). In the second case, the signature doesn't match > > the received message. So maybe it is just the mailer that messed the > > content, but you have no clue. > > You are missing the point here. PGP (GnuPG) is a web of trust. Anyone that > has decided to trust my key will have it in their keyrings and the > verification process would have completed successfully. You can choose to > trust a key that was signed by a person you trust and so the web grows > bigger. If you don't trust a specific public key, you should entirely > ignore the signature, because it would only mean that the owner of the key > sent something, but you don't know who that owner is actually. (I could > easily create a keypair that states my name is Bill Gates... now you > wouldn't believe that, would you?) Just one more comment... I have seen quite many public keys that are actually not signed by anybody else (only their owner). Now these mean and prove absolutely nothing (see above), so I don't know why these people are even using them. -- Blade hails you... For my dreams I hold my life For wishes I behold my night --Nightwish
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