# Terminology

* **backup repository**&mdash;where backups and chunks are stored; preferred over synonyms
* **chunk**&mdash;some data, encrypted
* **client chunk**&mdash;data specific for a client, e.g., chunk encryption keys
* **client key**&mdash;encryption key for client chunk
* **credential**&mdash;a way to encrypt client key so it can be accessed;
  there can be any number of credentials, each stored in its own chunk

