/**
 * Compression Utilities for TOSS
 *
 * Implements safe, deterministic compression for metadata only.
 * Transaction bytes are NEVER compressed to preserve determinism.
 *
 * Production-ready with official APIs.
 */
/**
 * Simple DEFLATE-based compression using native zlib
 * (Available in Node.js and via polyfills in React Native)
 *
 * For metadata compression: memos, recipient names, etc.
 * NOT for transaction signatures or amounts!
 */
export interface CompressionResult {
    compressed: boolean;
    data: Uint8Array;
    originalSize: number;
    compressedSize: number;
    compressionRatio: number;
}
/**
 * Compress metadata safely
 * Only compresses if compression saves >10% and data >200 bytes
 *
 * Safe for: memo text, user names, descriptions
 * UNSAFE for: signatures, amounts, transaction data
 */
export declare function compressMetadata(data: string): Promise<CompressionResult>;
/**
 * Decompress metadata
 */
export declare function decompressMetadata(data: Uint8Array): Promise<string>;
/**
 * Compress intent metadata for efficient transmission
 * Returns the original intent with compressed metadata
 */
export declare function compressIntentMetadata(intentMetadata: Record<string, any>): Promise<{
    original: Record<string, any>;
    compressed: Record<string, any>;
    savings: number;
}>;
/**
 * Decompress intent metadata
 */
export declare function decompressIntentMetadata(compressedMetadata: Record<string, any>): Promise<Record<string, any>>;
/**
 * Calculate size savings for a metadata object
 */
export declare function estimateCompressionSavings(metadata: Record<string, any>): number;
//# sourceMappingURL=compression.d.ts.map