Question: Part 1: Using PGP or similar encryption schemes, we can encrypt a message so that the same message can be opened by two or more

Part 1: Using PGP or similar encryption schemes, we can encrypt a message so that the same message can be opened by two or more recipients, each using his or her own private key, without materially increasing the size of the encrypted package. Carefully explain how that can be accomplished. (Hint: the actual message is encrypted using a symmetric key.)

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