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Recipient unable to verify signature on file PGP encrypted and signed with Robo-FTP

Recipients using very old versions of PGP Desktop may not be able to decrypt files and/or verify signatures on files encrypted with Robo-FTP. If you encounter this problem you can use the /compat option with PGPENCRYPT to create PGP Desktop 2.x compatible files (2 Gb file size limit).

If the recipient's PGP implementation is particularly old, using the /compat option with PGPENCRYPT may not be sufficient. You may also need to generate a new key pair using the "Old PGP key compatibility" option in the Configurator. Use this key for signing and encrypting the file (and be sure to send the resulting public key to the recipient).

Article last updated: 2022-01-12

Tags: PGP