Imports github.com/jcmturner/gofork/encoding/asn1 gopkg.in/jcmturner/gokrb5.v7/types gopkg.in/jcmturner/gokrb5.v7/iana/keyusage gopkg.in/jcmturner/gokrb5.v7/crypto Standard library imports bytes context encoding/binary encoding/hex errors fmt crypto/hmac