import type { DeviceFingerprint } from '../interfaces/BrandedTypes.mjs';
import type { SyncDevice } from '../interfaces/SyncTypes.mjs';
/**
 * Derives the fingerprint a user compares two devices by.
 *
 * Synchronous, and deliberately outside `CryptoLib`. This is a digest of values
 * that are public by definition, with no key and no secret input, so the
 * provider abstraction would buy nothing but an await on every call -- and
 * `getSyncDevices` is called from render paths. `@noble/hashes` is already a
 * direct dependency and already the hash both platform providers agree through
 * in `platformProviders/shared/curves.mts`, so there is one implementation
 * here rather than two to keep in step.
 * @param device - The device to fingerprint.
 * @returns The fingerprint, as uppercase hex in dash-separated groups.
 */
export declare const deviceFingerprint: (device: Pick<SyncDevice, "deviceId" | "publicKey" | "signingPublicKey">) => DeviceFingerprint;