DecryptBytes takes in base64-encoded encrypted bytes and the base64-encoded private key and decrypts it.

EncryptShares takes an ordered set of byte slices to encrypt and the corresponding base64-encoded public keys to encrypt them with, encrypts each byte slice with the corresponding public key.

FetchKeybasePubkeys fetches public keys from Keybase given a set of usernames, which are derived from correctly formatted input entries.

GetEntities takes in a string array of base64-encoded PGP keys and returns the openpgp Entities.

GetFingerprints takes in a list of openpgp Entities and returns the fingerprints.