keystore

type Keystore interface {
	// CosignerIndex returns the index at which the keystore signs in a multisig configuration.
	// The returned value is always zero for a singlesig configuration.
	CosignerIndex() int

	// SupportsAccount returns true if they keystore supports the given coin/account.
	// meta is a coin-specific metadata related to the account type.
	SupportsAccount(coin coin.Coin, multisig bool, meta interface{}) bool

	// CanVerifyAddress returns whether the keystore supports to output an address securely.
	// This is typically done through a screen on the device or through a paired mobile phone.
	// optional is true if the user can skip verification, and false if they should be incentivized
	// or forced to verify.
	// The passed configuration is the account-level configuration.
	CanVerifyAddress(*signing.Configuration, coin.Coin) (secureOutput bool, optional bool, err error)

	// VerifyAddress outputs the public key at the given configuration for the given coin.
	// Please note that this is only supported if the keystore has a secure output channel.
	VerifyAddress(*signing.Configuration, coin.Coin) error

	// CanVerifyExtendedPublicKey returns whether the keystore supports to output an xpub/zpub/tbup/ypub securely.
	CanVerifyExtendedPublicKey() bool

	// VerifyExtendedPublicKey displays the public key on the device for verification
	VerifyExtendedPublicKey(coin.Coin, signing.AbsoluteKeypath, *signing.Configuration) error

	// ExtendedPublicKey returns the extended public key at the given absolute keypath.
	ExtendedPublicKey(coin.Coin, signing.AbsoluteKeypath) (*hdkeychain.ExtendedKey, error)

	// SignTransaction signs the given transaction proposal. Returns ErrSigningAborted if the user
	// aborts.
	SignTransaction(interface{}) error
}

type Keystores struct {
	// contains filtered or unexported fields
}