Hope you can help with this. I have a client who just received two emails. One email has in the body
the phrase is:whateverthephrasewas
and the other had a file and in it the sender stated:
The file is encrypted in conventional encryption of PGP which would conform with standard HIPAA data encryption.
Basically, the sender sent a file that's encrypted, but we have not shared public keys. My question is can you decrypt a file using PGP without someone's public key (I'm assuming that's what the conventional PGP means).
Any help on this would be greatly appreciated.