/**
 * Fingerprint Shared Utilities
 * 客户端和服务端共享的常量、类型和验证逻辑
 */
export declare const FINGERPRINT_STORAGE_KEY = "__x_fingerprint_id";
export declare const FINGERPRINT_HEADER_NAME = "x-fingerprint-id-v8";
export declare const FINGERPRINT_COOKIE_NAME = "__x_fingerprint_id";
export declare const FINGERPRINT_SOURCE_REFER = "x-source-ref";
/**
 * 验证fingerprint ID格式
 * 可以在客户端和服务端使用
 */
export declare function isValidFingerprintId(fingerprintId: string): boolean;
export declare const FINGERPRINT_CONSTANTS: {
    readonly STORAGE_KEY: "__x_fingerprint_id";
    readonly HEADER_NAME: "x-fingerprint-id-v8";
    readonly COOKIE_NAME: "__x_fingerprint_id";
};
