common

type APIError struct {
	Code    int64  `json:"code"`
	Message string `json:"message"`
}

type KeyManager interface {
	Signer
	PubKey() gFp5.Element
	PubKeyBytes() [40]byte
	PrvKeyBytes() []byte
}

type NonceManager interface {
	Fetch(ctx context.Context) (int64, error)
}

type Signer interface {
	Sign(message []byte, hFunc hash.Hash) ([]byte, error)
	CreateAuthToken(accountIndex int64, keyIndex uint8, deadline time.Time) (string, error)
}