/**
 * Change Password DTO
 *
 * Used for authenticated password changes.
 * User must provide their current password for security verification.
 *
 * Security:
 * - Old password verified before allowing change
 * - New password validated for minimum strength
 * - Password history checked (configurable)
 * - Max length prevents DoS via Argon2 hashing
 *
 * @example
 * ```typescript
 * POST /auth/change-password
 * Authorization: Bearer <access-token>
 * {
 *   "oldPassword": "currentPassword123",
 *   "newPassword": "newSecurePassword456"
 * }
 * ```
 */
export declare class ChangePasswordDTO {
    /**
     * Current password
     *
     * Validation:
     * - Must be a string
     *
     * Note: NOT trimmed (passwords can have leading/trailing spaces)
     */
    oldPassword: string;
    /**
     * New password
     *
     * Validation:
     * - Must be a string
     * - Min 8 characters (security requirement)
     * - Max 128 characters (prevents DoS via Argon2 hashing)
     *
     * Note: NOT trimmed (passwords can have leading/trailing spaces)
     *
     * Additional checks in service layer:
     * - Password history (prevent reuse of recent passwords)
     * - Password strength (if configured)
     * - Not same as old password
     */
    newPassword: string;
}
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