To begin authoring Licenses, you need to be able to sign them. Create and save an encrypted Ed25519 keypair.

The raw ed25519.Keypair from authoring isn’t serializable, so get a crypto_licensing KeypairEncrypted and save its str( <KeypairEncrypted> ) output to a file.

import crypto_licensing as cl
username		= 'admin@awesome-inc.com'
password		= 'password'
auth_keypair	= None or cl.authoring( seed=b'\xff' * 32 ) # don't do, unless you have a random seed!
encr_keypair	= cl.KeypairEncrypted( auth_keypair, username=username, password=password )
decr_keypair	= cl.KeypairPlaintext( encr_keypair.into_keypair( username=username, password=password ))
[
    [ "Plaintext:", "" ],
    [ "verifying", decr_keypair['vk'] ],
    [ "signing", decr_keypair['sk'] ],
    [ "Encrypted:" ],
    [ "salt", encr_keypair['salt'] ],
    [ "ciphertext", encr_keypair['ciphertext'] ],
]

A License can be as simple, free-standing authorization with no other License dependencies, or it may have a tree of sub-Licenses that must also be confirmed as valid.

Loads every available Ed25519 Keypairs (with the provided credentials), and all available Licenses, yielding all <Keypair>,<LicenseSigned> that are valid in the current environment.

If no valid License is available for some key found, then <Keypair>,None is yielded, allowing the caller to use the Key to issue a License if desired.

If nothing at all is yielded, then this indicates that no Keypairs were found; either you need to “register” (create and save) one, or provide different credentials.

Supply the username and password to the KeypairEncrypted via environment variables CRYPTO_LIC_USERNAME and CRYPTO_LIC_PASSWORD.