export interface PasswordAnalysis {
    guessesLog10: number;
    entropyBits: number;
    penaltyShards: number;
    reason: string;
    isUnsafe: boolean;
    securityTier: 'reject' | 'warn' | 'accept' | 'excellent';
}
/**
 * Analyze password strength and determine penalty shards.
 *
 * Security tiers:
 * - reject: Below minimum threshold, cannot proceed
 * - warn: Usable but not recommended (40-80 bits)
 * - accept: Strong (80-128 bits)
 * - excellent: Post-quantum secure (>128 bits)
 */
export declare function analyzePassword(password: Buffer, userInputs?: string[]): PasswordAnalysis;
/**
 * Calculate effective security bits including work factor contribution.
 *
 * workBits = log2(totalShards) + log2(memoryBytes) + log2(timeCost)
 */
export declare function calculateEffectiveSecurity(entropyBits: number, totalShards: number, memoryKiB: number, timeCost: number): number;
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