mcrypt

type Identifier struct {
	Description string // explain what the content is
	Mime        string // mime type to describe Content
	Content     []byte // picture, audio etc
}

type Identity struct {
	PublicIdentity PublicIdentity
	Key            *[privKeySize]byte // private key, exported for JSON
}

type Message struct {
	Nonce     [NonceSize]byte      // NOT secret
	Signature *[signatureSize]byte // signature of the encrypted box
	Box       []byte               // NaCl box
}

type PublicIdentity struct {
	Name        string
	Address     string
	Key         *[pubKeySize]byte
	Signature   *[signatureSize]byte
	Identifiers []*Identifier
}