import type { Identity } from "./identity.js";
export declare const SPHERE_FRAGMENTS: readonly ["public", "circle", "self"];
export type Sphere = (typeof SPHERE_FRAGMENTS)[number];
export declare function ed25519PublicKeyToMultibase(pk: Uint8Array): string;
export declare function x25519PublicKeyToMultibase(pk: Uint8Array): string;
export declare function multibaseToEd25519PublicKey(mb: string): Uint8Array;
export declare function didAithosForRootKey(rootPk: Uint8Array): string;
export declare function didUrlForSphere(rootDid: string, sphere: Sphere): string;
export declare function didUrlForKex(rootDid: string, sphere: Sphere): string;
export declare function parseDidAithos(did: string): {
    rootMultibase: string;
    fragment: string | null;
};
export declare function signWithSphere(identity: Identity, sphere: Sphere, payload: Uint8Array): Uint8Array;
export declare function sphereDidUrl(identity: Identity, sphere: Sphere): string;
export declare function rootDid(identity: Identity): string;