export declare const DEFAULT_READER_KEYS: {
    privateKey: string;
    publicKey: string;
};
/**
 * Generate a new Nostr key pair
 * @returns {Promise<Object>} Object containing private and public keys
 */
export declare function generateKeyPair(): Promise<{
    privateKey: string;
    publicKey: string;
}>;
/**
 * Convert a hex public key to npub format
 * @param {string} publicKeyHex - Public key in hex format
 * @returns {string} npub formatted public key
 */
export declare function hexToNpub(publicKeyHex: string): string;
/**
 * Convert an npub to hex format
 * @param {string} npub - npub formatted public key
 * @returns {string} Public key in hex format
 */
export declare function npubToHex(npub: string): string;
/**
 * Get public key from private key
 * @param {string} privateKeyHex - Private key in hex format
 * @returns {Promise<string>} Public key in hex format
 */
export declare function getPublicKey(privateKeyHex: string): Promise<string>;
export declare class KeyManager {
    private secp256k1Promise;
    constructor();
    generatePrivateKey(): Promise<string>;
    getPublicKey(privateKey: string): Promise<string>;
    sign(privateKey: string, message: string): Promise<string>;
    verify(publicKey: string, message: string, signature: string): Promise<boolean>;
}