crypto

type PubKeyClient interface {
	// GetPubKeyFromAddress returns the public key of the given account address
	// if it exists.
	GetPubKeyFromAddress(ctx context.Context, address string) (cryptotypes.PubKey, error)
}

type RingClient interface {
	// GetRingForAddressAtHeight returns the ring for the given application address
	// and blockHeight if it exists.
	GetRingForAddressAtHeight(
		ctx context.Context,
		appAddress string,
		blockHeight int64,
	) (*ring.Ring, error)

	// VerifyRelayRequestSignature verifies the relay request signature against
	// the ring for the application address in the relay request.
	VerifyRelayRequestSignature(ctx context.Context, relayRequest *types.RelayRequest) error
}