/**
 * Vault Document Model
 *
 * Represents a complete vault: header + ciphertext
 */
import type { VaultHeader } from './VaultHeader';
export interface VaultDocument {
    header: VaultHeader;
    ciphertext: Uint8Array;
}
export interface VaultDocumentJson {
    header: VaultHeader;
    ciphertext: string;
}
/**
 * Serialize vault document to JSON
 */
export declare function vaultDocumentToJson(document: VaultDocument): VaultDocumentJson;
/**
 * Deserialize vault document from JSON
 */
export declare function vaultDocumentFromJson(json: VaultDocumentJson): VaultDocument;