crypto

type Factory interface {
	// NewSigner creates a new signer from a private key
	NewSigner(scheme SignatureScheme, privateKey []byte) (Signer, error)

	// NewSignerFromSeed creates a signer from a seed
	NewSignerFromSeed(scheme SignatureScheme, seed []byte) (Signer, error)

	// GenerateKey generates a new private key
	GenerateKey(scheme SignatureScheme) (privateKey []byte, err error)
}

type KeyManager interface {
	// DeriveKey derives a key using BIP32/BIP44 path
	DeriveKey(path string) ([]byte, error)

	// SupportsScheme checks if the key manager supports the scheme
	SupportsScheme(scheme SignatureScheme) bool
}

type SignatureScheme uint8

type Signer interface {
	// Sign signs the message with the private key
	Sign(msg []byte) ([]byte, error)

	// PublicKey returns the public key
	PublicKey() []byte

	// Address returns the address derived from the public key
	Address() ids.ShortID

	// Scheme returns the signature scheme used
	Scheme() SignatureScheme

	// Verify verifies a signature
	Verify(msg, sig []byte) bool
}