decryption requires private key and passphrase [closed]

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Is it possible to require BOTH a private key and a passphrase in order to decrypt a file using gpg? I understand I can encrypt the file twice once using the public key. Then encrypt that file with the passphrase. Is there an option in gpg that will do this in one step? Looking through the man file I only was able to find a key or passphrase. Any insight would be appreciated.

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I understand I can encrypt the file twice once using the public key. Then encrypt that file with the passphrase. Is there an option in gpg that will do this in one step?

Nope. There is no such option.

(You can however PGP-encrypt a file with a symmetric passphrase while at the same time encrypting it to multiple recipients. This basically results in multiple copies of the session key [which is used to symmetrically encrypt the message] being encrypted via different means [potentially various public keys along with a shared passphrase]).