/**
 * Threshold Session Model
 *
 * Tracks multi-party threshold reconstruction sessions
 */
/**
 * A collected share during threshold reconstruction
 * Different from ThresholdShare in VaultHeader which is the encrypted share data
 */
export interface CollectedShare {
    identifier: number;
    data: string;
    providedBy: string;
    providedAt: Date;
}
export interface ThresholdSession {
    id: string;
    vaultId: string;
    docId: string;
    threshold: number;
    shares: CollectedShare[];
    status: 'pending' | 'complete' | 'expired' | 'failed';
    reconstructedCek?: Uint8Array;
    initiatedBy: string;
    createdAt: Date;
    expiresAt?: Date;
    purpose?: string;
}
export type ThresholdSessionStatus = ThresholdSession['status'];
/**
 * Check if session has met threshold
 */
export declare function hasMetThreshold(session: ThresholdSession): boolean;
/**
 * Check if session is expired
 */
export declare function isSessionExpired(session: ThresholdSession): boolean;