Imports k8s.io/kubernetes/pkg/auth/authenticator github.com/golang/glog k8s.io/kubernetes/pkg/api k8s.io/kubernetes/pkg/api/validation k8s.io/kubernetes/pkg/auth/user github.com/dgrijalva/jwt-go Standard library imports bytes crypto/elliptic errors fmt io/ioutil strings encoding/pem crypto/rsa crypto/ecdsa