Imports github.com/docker/go/canonical/json github.com/agl/ed25519 github.com/docker/notary github.com/Sirupsen/logrus Standard library imports fmt io io/ioutil math/big path regexp strings time hash crypto/sha512 crypto/rsa crypto crypto/ecdsa crypto/sha256 bytes crypto/subtle crypto/x509 encoding/asn1 encoding/hex errors