import { Checksum } from '../types/checksum';
export declare function generateRandomString(length: number): string;
/**
 * Generate a random Checksum for testing purposes.
 *
 * This function creates a cryptographically secure random checksum
 * of the correct length (64 bytes for SHA3-512).
 *
 * @returns A new Checksum instance with random data
 *
 * @example
 * ```typescript
 * const checksum = generateRandomChecksum();
 * console.log(checksum.toHex());
 * ```
 *
 * @see Requirement 5.3
 */
export declare function generateRandomChecksum(): Checksum;
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