Function getJWKS

Returns Promise<
    {
        keys: {
            alg: ALGORITHMS_ALLOWED;
            crv?: string;
            d?: string;
            dp?: string;
            dq?: string;
            e?: string;
            ext?: boolean;
            k?: string;
            key_ops?: string[];
            kid: string;
            kty?: string;
            n?: string;
            p?: string;
            q?: string;
            qi?: string;
            use: string;
            x?: string;
            x5c?: string[];
            x5t?: string;
            "x5t#S256"?: string;
            x5u?: string;
            y?: string;
        }[];
    },
>

JSON Web Key Set with all public keys in the directory. Uses filename to distinguish between keys (sets the kid field in the JWK).