xnet "github.com/minio/pkg/v3/net"
	"github.com/minio/pkg/v3/policy"
)

type publicKeys struct {
	*sync.RWMutex

	// map of kid to public key
	pkMap map[string]interface{}
}

func (pk *publicKeys) parseAndAdd(b io.Reader) error {
	var jwk JWKS
	err := json.NewDecoder(b).Decode(&jwk)
	if err != nil {
		return err
	}

	for _, key := range jwk.Keys {
		pkey, err := key.DecodePublicKey()
		if err != nil {