The Keyring is part of Serval DNA that stores the local node's network identities. Each identity consist of:

• one Serval Identity (SID) and its associated cryptographic secret
• one Rhizome Secret
• optionally a Dialled Identity (DID)
• optionally a Subscriber Name

The Keyring API provides applications with operations to:

• add new identities
• lock and unlock existing identities using a user-supplied PIN (passphrase)
• list all unlocked identities
• query and modify an unlocked identity