| crypto/x509 | Package x509 implements a subset of the X.509 standard. |
| crypto/x509/pkix | Package pkix contains shared, low level structures used for ASN.1 parsing and serialization of X.509 certificates, CRL and OCSP. |
| encoding/hex | Package hex implements hexadecimal encoding and decoding. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| k8s.io/apimachinery/pkg/util/errors | Package errors implements various utility functions and types around errors. |
| k8s.io/apimachinery/pkg/util/sets | Package sets has generic set and specified sets. |
| k8s.io/apiserver/pkg/authentication/authenticator | |
| k8s.io/apiserver/pkg/authentication/user | Package user contains utilities for dealing with simple user exchange in the auth packages. |
| k8s.io/client-go/util/cert | |
| k8s.io/component-base/metrics | |
| k8s.io/component-base/metrics/legacyregistry | |
| net/http | Package http provides HTTP client and server implementations. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| time | Package time provides functionality for measuring and displaying time. |