Imports github.com/mitchellh/packer/common github.com/mitchellh/packer/packer code.google.com/p/go.crypto/ssh github.com/mitchellh/packer/communicator/ssh github.com/mitchellh/multistep Standard library imports bytes encoding/hex errors fmt io io/ioutil log math/rand net net/http os os/exec path/filepath regexp strconv strings time unicode/utf8 crypto/sha256 unicode