import { type Counterparty, type KeyDeriverApi, type PrivateKey, type WalletProtocol } from "@bsv/sdk";
/**
 * A read-only KeyDeriver that exposes an identity key but throws on any signing/derivation operation.
 * Used when the wallet is instantiated with only a public key.
 */
export declare class ReadOnlySigner implements KeyDeriverApi {
    readonly identityKey: string;
    readonly rootKey: PrivateKey;
    constructor(identityPublicKey: string);
    derivePrivateKey(_protocolID: WalletProtocol, _keyID: string, _counterparty: Counterparty): never;
    derivePublicKey(_protocolID: WalletProtocol, _keyID: string, _counterparty: Counterparty, _forSelf?: boolean): never;
    deriveSymmetricKey(_protocolID: WalletProtocol, _keyID: string, _counterparty: Counterparty): never;
    revealCounterpartySecret(_counterparty: Counterparty): never;
    revealSpecificSecret(_counterparty: Counterparty, _protocolID: WalletProtocol, _keyID: string): never;
}