Encrypt or decrypt a message using the public key from the receiver.
Optionally the message can be signed using the private key of the sender.
Arguments
- data
 path or raw vector with data to encrypt / decrypt
- receiver
 key id(s) or fingerprint(s) for recepient(s)
- signer
 (optional) key id(s) or fingerprint(s) for the sender(s) to sign the message
- verify
 automatically checks that all signatures (if any) can be verified and raises an error otherwise
- as_text
 convert output to text. Set to FALSE if you expect binary data.
See also
Other gpg:
gpg_keygen(),
gpg_keys,
gpg_sign()
