/**
 * Sui Chain Adapter
 *
 * Builds Sui Move transactions using BCS serialization,
 * attaches Ed25519 signatures from the FROST threshold signing
 * network, and broadcasts via Sui JSON RPC.
 *
 * Sui uses Blake2b-256 for transaction digests with an intent prefix.
 *
 * Requires: npm install @mysten/sui
 */
import { ChainAdapter, SuiTransaction } from '../core/types';
export declare class SuiAdapter implements ChainAdapter {
    private rpcUrl;
    private network;
    private suiSdk;
    constructor(network?: 'mainnet' | 'testnet' | 'devnet', rpcUrl?: string);
    getRpcUrl(): string;
    /**
     * Load Blake2b-256 hash function from @noble/hashes (transitive dep of @mysten/sui).
     */
    private getBlake2b;
    /**
     * Build an unsigned Sui transaction.
     *
     * The signing message is: Blake2b-256(intent_prefix + bcs_bytes)
     * where intent_prefix = [0, 0, 0] for TransactionData.
     */
    buildTransaction(tx: SuiTransaction, fromAddress: string): Promise<string>;
    getSigningPayload(unsignedTx: string): string;
    /**
     * Attach an Ed25519 signature to the Sui transaction.
     *
     * Sui signature format: flag (1 byte: 0x00 for Ed25519) + signature (64) + pubkey (32)
     *
     * The signature parameter can be:
     *   - 128 hex chars (64 bytes): raw Ed25519 signature only
     *   - 192 hex chars (96 bytes): Ed25519 signature (64) + public key (32) concatenated
     *
     * If the signature includes the public key (96 bytes), it takes precedence
     * over the publicKey stored in the payload from buildTransaction.
     */
    attachSignature(unsignedTx: string, signature: string): Promise<string>;
    /**
     * Broadcast a signed Sui transaction
     */
    broadcast(signedTx: string): Promise<string>;
    /**
     * Get SUI balance in MIST
     */
    getBalance(address: string): Promise<string>;
}
export declare function createSuiAdapter(rpcUrl?: string): SuiAdapter;
export declare function createSuiTestnetAdapter(rpcUrl?: string): SuiAdapter;
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