/**
 * Preset normalization for verify candidates AND stored comparands (§4).
 * Both sides of every comparison route through the SAME function so
 * write-time digests and verify-time candidates agree. @module
 */
export type VerifyNormalizeMode = 'password' | 'secret-answer';
export declare function normalizeForVerify(mode: VerifyNormalizeMode, value: string): string;