      def rs256_decode_key(kid)
        jwks_x5c = jwks_key(:x5c, kid)

        if jwks_x5c.nil?
          raise OmniAuth::Auth0::TokenValidationError.new("Could not find a public key for Key ID (kid) '#{kid}''")
        end

        jwks_public_cert(jwks_x5c.first)
      end
The software does not verify, or incorrectly verifies, the cryptographic signature for data.