Seal.
Lock a file or a message with a passphrase or a key, then send it any way you like. Only the person with the passphrase or key can open it.
What to sealWhat to open
01Protect withOpen with
02Send the passphrase separately from the file, for example by phone. It cannot be recovered if it is lost.
Ask each person for their public key, which starts with age1. They can create one below.
Keys
03A key pair lets people seal files for you without sharing a passphrase. Give out the public key; keep the secret key to yourself.
Public key (share this)
Secret key (keep this private)
Save the key file somewhere safe, such as a password manager. Nobody can recover it for you, including us.