/**
 * Verify the signature of some data (Uint8Array), given a DID.
 */
export declare function verifySignature(data: Uint8Array, signature: Uint8Array, did: string): Promise<boolean>;
/**
 * Verify the signature of some data (string encoded as utf8), given a DID.
 */
export declare function verifySignatureUtf8(data: string, signature: string, did: string): Promise<boolean>;