import { Stream } from '@olane/o-config';
import { oAddress } from '../router/o-address.js';
import { oResponse } from '../connection/o-response.js';
import { CID } from 'multiformats';
import { oObject } from '../core/o-object.js';
export declare class CoreUtils extends oObject {
    static generatePeerId(): Promise<any>;
    static doHealthCheck(address: oAddress, node: any): Promise<boolean>;
    static healthCheck(config: {
        type?: 'leader' | 'parent' | 'child';
        address?: oAddress;
        node: any;
        timeout?: number;
    }): Promise<boolean>;
    static generatePrivateKey(seed: string): Promise<any>;
    /**
     * Convert any user phrase to exactly 32 bytes for Ed25519 key generation.
     * This function uses SHA-256 hashing to ensure:
     * - Deterministic: Same phrase always produces same seed
     * - Uniform distribution: Good entropy even for weak phrases
     * - Exactly 32 bytes: Meets Ed25519 cryptographic requirements
     */
    static phraseToSeedBytes(phrase: string): Uint8Array;
    static phraseToSeed(phrase: string): string;
    static childAddress(parentAddress: oAddress, childAddress: oAddress): oAddress;
    /**
     * Sends a response through a stream using length-prefixed encoding
     * Uses lpStream for proper message boundaries (libp2p v3 best practice)
     *
     * @param response - The response to send
     * @param stream - The stream to send the response through
     */
    static sendResponse(response: oResponse, stream: Stream): Promise<void>;
    static toCID(data: any): Promise<CID>;
}
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