export interface Zip64ExtraValues {
    uncompressedSize?: bigint;
    compressedSize?: bigint;
    offset?: bigint;
    diskStart?: number;
}
export interface ExtendedTimestampValues {
    mtime?: Date;
    atime?: Date;
    ctime?: Date;
}
export interface AesExtraValues {
    vendorVersion: 1 | 2;
    strength: 128 | 192 | 256;
    actualMethod: number;
}
export declare function parseExtraFields(extra: Uint8Array): Map<number, Uint8Array>;
export declare function parseZip64Extra(data: Uint8Array, present: {
    uncompressed: boolean;
    compressed: boolean;
    offset: boolean;
    diskStart: boolean;
}): Zip64ExtraValues;
export declare function buildZip64Extra(values: Zip64ExtraValues): Uint8Array;
export declare function parseExtendedTimestamp(data: Uint8Array): ExtendedTimestampValues;
export declare function buildExtendedTimestampExtra(values: ExtendedTimestampValues, isCentral: boolean): Uint8Array;
export declare function buildAesExtra(values: AesExtraValues): Uint8Array;
export declare function parseAesExtra(data: Uint8Array): AesExtraValues | undefined;
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