export declare function getValidSecret(): Uint8Array; export declare function isValidPrivateKey(secret: Uint8Array): boolean; export declare function getPublicKey(secret: Uint8Array): Uint8Array; export declare function getSharedKey(ephemeralPoint: Uint8Array, sharedPoint: Uint8Array): Uint8Array; export declare function getSharedPoint(sk: Uint8Array, pk: Uint8Array, compressed?: boolean): Uint8Array; export declare function convertPublicKeyFormat(pk: Uint8Array, compressed: boolean): Uint8Array; export declare function hexToPublicKey(hex: string): Uint8Array;