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Old 06-06-2017, 11:19 AM   #31
justmy2cents
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Quote:
Originally Posted by sundialsvcs View Post
At the risk of sounding "pedantic" at this point . . .

The specific "use of GPG" that I had in mind is one that allows you to encrypt a file in such a way that it can be decrypted by (only!!) those specific parties who were in possession of "the private keys which correspond to" a collection of public-keys which were (of course ...) known to the sender.

The sender generates a random symmetric-cipher key that is presumed to be "un-guessable." The sender then provides that key to each of the intended recipients, protected by each one's public key, so that only the corresponding private key can be used to retrieve it.

The entire notion of "key exchange," then, is entirely irrelevant. O ne party possesses the entire secret. The other party does not ... unless(!) they are able to decrypt the portion of the message which gives it to them.
Got it, ill have to look more into this aswell.. Nevertheless thanks a lot for the help!
 
  


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