# `Aker`
[🔗](https://github.com/udin-io/aker/blob/v0.1.0/lib/aker.ex#L1)

Licences for on-premises Elixir apps.

  * `Aker.InstallKey` makes and holds the install key, in a file or
    the machine's TPM chip.
  * `Aker.MachineId` hashes the host's machine id.
  * `Aker.Request` builds and verifies the signed activation request.
  * `Aker.SigningKey` and `Aker.PublicKeys` read the Ed25519
    keys that sign and check licences.

The library holds no key of its own: the app passes the root public keys
it trusts.

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*Consult [api-reference.md](api-reference.md) for complete listing*