With GPG, can 3rd party verify that message has been encrypted by specific public key?

Bob is sending message X to Alice. He encrypts X with Alice’s public key using gpg and sends her encrypted message (ciphertext).

Later Alice claims that Bob made a mistake and the ciphertext was not created with her public key.

Can Bob p… Continue reading With GPG, can 3rd party verify that message has been encrypted by specific public key?