import { PrivateKey } from './key_private';
export declare function addEntropy(...ints: number[]): void;
/**
 * Cryptographically secure 32-byte random buffer.
 * Optionally mix in caller-provided entropy (e.g. from browser) via one-shot hash.
 * @param entropy optional string entropy of at least 32 bytes to mix in
 */
export declare function random32ByteBuffer(entropy?: string): Buffer;
export declare function get_random_key(entropy?: string): PrivateKey;
export declare function browserEntropy(): string;