Cloak makes it easy to encrypt and decrypt database fields using Ecto. It consists of four components:

• Cloak.Cipher - Ciphers encrypt and decrypt data using a particular encryption algorithm.

• Cloak.Vault - Vaults configure and use ciphers. Applications can have multiple vaults.

• Cloak.Encrypted.* - custom Ecto.Type modules that make it easy to use your vault to encrypt/decrypt fields.

• Mix.Tasks.Cloak.Migrate - a task that will great simplify the process when you need to rotate your keys.