export interface SheetProtection {
    /** Master toggle — when true the sheet is protected. */
    sheet?: boolean;
    /** Allow operations on drawing objects when sheet is protected. */
    objects?: boolean;
    /** Allow operations on scenarios when sheet is protected. */
    scenarios?: boolean;
    formatCells?: boolean;
    formatColumns?: boolean;
    formatRows?: boolean;
    insertColumns?: boolean;
    insertRows?: boolean;
    insertHyperlinks?: boolean;
    deleteColumns?: boolean;
    deleteRows?: boolean;
    selectLockedCells?: boolean;
    selectUnlockedCells?: boolean;
    sort?: boolean;
    autoFilter?: boolean;
    pivotTables?: boolean;
    /** Base-64 salt for the password hash. */
    saltValue?: string;
    /** Number of hash iterations. */
    spinCount?: number;
    /** Hash algorithm name, e.g. "SHA-512". */
    algorithmName?: string;
    /** Base-64 hashed password. */
    hashValue?: string;
}
export declare const makeSheetProtection: (opts?: SheetProtection) => SheetProtection;
import type { Worksheet } from './worksheet';
/**
 * Lock a worksheet with Excel's "Protect Sheet" defaults. Pass `overrides` to
 * allow specific actions while otherwise locked (e.g. `{ sort: true,
 * autoFilter: true }` for "allow sort + filter on locked sheet"). Password-hash
 * fields can be supplied as a quad (algorithmName / hashValue / saltValue /
 * spinCount); plaintext passwords are out of scope until the D-tier hashing
 * helper lands.
 */
export declare const protectSheet: (ws: Worksheet, overrides?: Partial<SheetProtection>) => SheetProtection;
/** Drop the typed sheet-protection record. */
export declare const unprotectSheet: (ws: Worksheet) => void;
/** Quick-lock helper that mirrors Excel's "Allow users to edit ranges → Protect Sheet" defaults. */
export declare const isSheetProtected: (ws: Worksheet) => boolean;