diff --git a/helper/ssh/communicator.go b/helper/ssh/communicator.go
new file mode 100644
index 000000000..1dc96a0b8
--- /dev/null
+++ b/helper/ssh/communicator.go
@@ -0,0 +1,524 @@
+package ssh
+
+import (
+	"bufio"
+	"bytes"
+	"code.google.com/p/go.crypto/ssh"
+	"errors"
+	"fmt"
+	"io"
+	"io/ioutil"
+	"log"
+	"net"
+	"os"
+	"path/filepath"
+	"sync"
+)
+
+// RemoteCmd represents a remote command being prepared or run.
+type RemoteCmd struct {
+	// Command is the command to run remotely. This is executed as if
+	// it were a shell command, so you are expected to do any shell escaping
+	// necessary.
+	Command string
+
+	// Stdin specifies the process's standard input. If Stdin is
+	// nil, the process reads from an empty bytes.Buffer.
+	Stdin io.Reader
+
+	// Stdout and Stderr represent the process's standard output and
+	// error.
+	//
+	// If either is nil, it will be set to ioutil.Discard.
+	Stdout io.Writer
+	Stderr io.Writer
+
+	// This will be set to true when the remote command has exited. It
+	// shouldn't be set manually by the user, but there is no harm in
+	// doing so.
+	Exited bool
+
+	// Once Exited is true, this will contain the exit code of the process.
+	ExitStatus int
+
+	// Internal fields
+	exitCh chan struct{}
+
+	// This thing is a mutex, lock when making modifications concurrently
+	sync.Mutex
+}
+
+// SetExited is a helper for setting that this process is exited. This
+// should be called by communicators who are running a remote command in
+// order to set that the command is done.
+func (r *RemoteCmd) SetExited(status int) {
+	r.Lock()
+	defer r.Unlock()
+
+	if r.exitCh == nil {
+		r.exitCh = make(chan struct{})
+	}
+
+	r.Exited = true
+	r.ExitStatus = status
+	close(r.exitCh)
+}
+
+// Wait waits for the remote command to complete.
+func (r *RemoteCmd) Wait() {
+	// Make sure our condition variable is initialized.
+	r.Lock()
+	if r.exitCh == nil {
+		r.exitCh = make(chan struct{})
+	}
+	r.Unlock()
+
+	<-r.exitCh
+}
+
+type SSHCommunicator struct {
+	client  *ssh.Client
+	config  *Config
+	conn    net.Conn
+	address string
+}
+
+// Config is the structure used to configure the SSH communicator.
+type Config struct {
+	// The configuration of the Go SSH connection
+	SSHConfig *ssh.ClientConfig
+
+	// Connection returns a new connection. The current connection
+	// in use will be closed as part of the Close method, or in the
+	// case an error occurs.
+	Connection func() (net.Conn, error)
+
+	// NoPty, if true, will not request a pty from the remote end.
+	NoPty bool
+}
+
+// Creates a new packer.Communicator implementation over SSH. This takes
+// an already existing TCP connection and SSH configuration.
+func New(address string, config *Config) (result *SSHCommunicator, err error) {
+	// Establish an initial connection and connect
+	result = &SSHCommunicator{
+		config:  config,
+		address: address,
+	}
+
+	if err = result.reconnect(); err != nil {
+		result = nil
+		return
+	}
+
+	return
+}
+
+func (c *SSHCommunicator) Start(cmd *RemoteCmd) (err error) {
+	session, err := c.newSession()
+	if err != nil {
+		return
+	}
+
+	// Setup our session
+	session.Stdin = cmd.Stdin
+	session.Stdout = cmd.Stdout
+	session.Stderr = cmd.Stderr
+
+	if !c.config.NoPty {
+		// Request a PTY
+		termModes := ssh.TerminalModes{
+			ssh.ECHO:          0,     // do not echo
+			ssh.TTY_OP_ISPEED: 14400, // input speed = 14.4kbaud
+			ssh.TTY_OP_OSPEED: 14400, // output speed = 14.4kbaud
+		}
+
+		if err = session.RequestPty("xterm", 80, 40, termModes); err != nil {
+			return
+		}
+	}
+
+	log.Printf("starting remote command: %s", cmd.Command)
+	err = session.Start(cmd.Command + "\n")
+	if err != nil {
+		return
+	}
+
+	// A channel to keep track of our done state
+	doneCh := make(chan struct{})
+	sessionLock := new(sync.Mutex)
+	timedOut := false
+
+	// Start a goroutine to wait for the session to end and set the
+	// exit boolean and status.
+	go func() {
+		defer session.Close()
+
+		err := session.Wait()
+		exitStatus := 0
+		if err != nil {
+			exitErr, ok := err.(*ssh.ExitError)
+			if ok {
+				exitStatus = exitErr.ExitStatus()
+			}
+		}
+
+		sessionLock.Lock()
+		defer sessionLock.Unlock()
+
+		if timedOut {
+			// We timed out, so set the exit status to -1
+			exitStatus = -1
+		}
+
+		log.Printf("remote command exited with '%d': %s", exitStatus, cmd.Command)
+		cmd.SetExited(exitStatus)
+		close(doneCh)
+	}()
+
+	return
+}
+
+func (c *SSHCommunicator) Upload(path string, input io.Reader) error {
+	// The target directory and file for talking the SCP protocol
+	target_dir := filepath.Dir(path)
+	target_file := filepath.Base(path)
+
+	// On windows, filepath.Dir uses backslash seperators (ie. "\tmp").
+	// This does not work when the target host is unix.  Switch to forward slash
+	// which works for unix and windows
+	target_dir = filepath.ToSlash(target_dir)
+
+	scpFunc := func(w io.Writer, stdoutR *bufio.Reader) error {
+		return scpUploadFile(target_file, input, w, stdoutR)
+	}
+
+	return c.scpSession("scp -vt "+target_dir, scpFunc)
+}
+
+func (c *SSHCommunicator) UploadDir(dst string, src string, excl []string) error {
+	log.Printf("Upload dir '%s' to '%s'", src, dst)
+	scpFunc := func(w io.Writer, r *bufio.Reader) error {
+		uploadEntries := func() error {
+			f, err := os.Open(src)
+			if err != nil {
+				return err
+			}
+			defer f.Close()
+
+			entries, err := f.Readdir(-1)
+			if err != nil {
+				return err
+			}
+
+			return scpUploadDir(src, entries, w, r)
+		}
+
+		if src[len(src)-1] != '/' {
+			log.Printf("No trailing slash, creating the source directory name")
+			return scpUploadDirProtocol(filepath.Base(src), w, r, uploadEntries)
+		} else {
+			// Trailing slash, so only upload the contents
+			return uploadEntries()
+		}
+	}
+
+	return c.scpSession("scp -rvt "+dst, scpFunc)
+}
+
+func (c *SSHCommunicator) Download(string, io.Writer) error {
+	panic("not implemented yet")
+}
+
+func (c *SSHCommunicator) newSession() (session *ssh.Session, err error) {
+	log.Println("opening new ssh session")
+	if c.client == nil {
+		err = errors.New("client not available")
+	} else {
+		session, err = c.client.NewSession()
+	}
+
+	if err != nil {
+		log.Printf("ssh session open error: '%s', attempting reconnect", err)
+		if err := c.reconnect(); err != nil {
+			return nil, err
+		}
+
+		return c.client.NewSession()
+	}
+
+	return session, nil
+}
+
+func (c *SSHCommunicator) reconnect() (err error) {
+	if c.conn != nil {
+		c.conn.Close()
+	}
+
+	// Set the conn and client to nil since we'll recreate it
+	c.conn = nil
+	c.client = nil
+
+	log.Printf("reconnecting to TCP connection for SSH")
+	c.conn, err = c.config.Connection()
+	if err != nil {
+		// Explicitly set this to the REAL nil. Connection() can return
+		// a nil implementation of net.Conn which will make the
+		// "if c.conn == nil" check fail above. Read here for more information
+		// on this psychotic language feature:
+		//
+		// http://golang.org/doc/faq#nil_error
+		c.conn = nil
+
+		log.Printf("reconnection error: %s", err)
+		return
+	}
+
+	log.Printf("handshaking with SSH")
+	sshConn, sshChan, req, err := ssh.NewClientConn(c.conn, c.address, c.config.SSHConfig)
+	if err != nil {
+		log.Printf("handshake error: %s", err)
+	}
+	if sshConn != nil {
+		c.client = ssh.NewClient(sshConn, sshChan, req)
+	}
+
+	return
+}
+
+func (c *SSHCommunicator) scpSession(scpCommand string, f func(io.Writer, *bufio.Reader) error) error {
+	session, err := c.newSession()
+	if err != nil {
+		return err
+	}
+	defer session.Close()
+
+	// Get a pipe to stdin so that we can send data down
+	stdinW, err := session.StdinPipe()
+	if err != nil {
+		return err
+	}
+
+	// We only want to close once, so we nil w after we close it,
+	// and only close in the defer if it hasn't been closed already.
+	defer func() {
+		if stdinW != nil {
+			stdinW.Close()
+		}
+	}()
+
+	// Get a pipe to stdout so that we can get responses back
+	stdoutPipe, err := session.StdoutPipe()
+	if err != nil {
+		return err
+	}
+	stdoutR := bufio.NewReader(stdoutPipe)
+
+	// Set stderr to a bytes buffer
+	stderr := new(bytes.Buffer)
+	session.Stderr = stderr
+
+	// Start the sink mode on the other side
+	// TODO(mitchellh): There are probably issues with shell escaping the path
+	log.Println("Starting remote scp process: ", scpCommand)
+	if err := session.Start(scpCommand); err != nil {
+		return err
+	}
+
+	// Call our callback that executes in the context of SCP. We ignore
+	// EOF errors if they occur because it usually means that SCP prematurely
+	// ended on the other side.
+	log.Println("Started SCP session, beginning transfers...")
+	if err := f(stdinW, stdoutR); err != nil && err != io.EOF {
+		return err
+	}
+
+	// Close the stdin, which sends an EOF, and then set w to nil so that
+	// our defer func doesn't close it again since that is unsafe with
+	// the Go SSH package.
+	log.Println("SCP session complete, closing stdin pipe.")
+	stdinW.Close()
+	stdinW = nil
+
+	// Wait for the SCP connection to close, meaning it has consumed all
+	// our data and has completed. Or has errored.
+	log.Println("Waiting for SSH session to complete.")
+	err = session.Wait()
+	if err != nil {
+		if exitErr, ok := err.(*ssh.ExitError); ok {
+			// Otherwise, we have an ExitErorr, meaning we can just read
+			// the exit status
+			log.Printf("non-zero exit status: %d", exitErr.ExitStatus())
+
+			// If we exited with status 127, it means SCP isn't available.
+			// Return a more descriptive error for that.
+			if exitErr.ExitStatus() == 127 {
+				return errors.New(
+					"SCP failed to start. This usually means that SCP is not\n" +
+						"properly installed on the remote system.")
+			}
+		}
+
+		return err
+	}
+
+	log.Printf("scp stderr (length %d): %s", stderr.Len(), stderr.String())
+	return nil
+}
+
+// checkSCPStatus checks that a prior command sent to SCP completed
+// successfully. If it did not complete successfully, an error will
+// be returned.
+func checkSCPStatus(r *bufio.Reader) error {
+	code, err := r.ReadByte()
+	if err != nil {
+		return err
+	}
+
+	if code != 0 {
+		// Treat any non-zero (really 1 and 2) as fatal errors
+		message, _, err := r.ReadLine()
+		if err != nil {
+			return fmt.Errorf("Error reading error message: %s", err)
+		}
+
+		return errors.New(string(message))
+	}
+
+	return nil
+}
+
+func scpUploadFile(dst string, src io.Reader, w io.Writer, r *bufio.Reader) error {
+	// Create a temporary file where we can copy the contents of the src
+	// so that we can determine the length, since SCP is length-prefixed.
+	tf, err := ioutil.TempFile("", "packer-upload")
+	if err != nil {
+		return fmt.Errorf("Error creating temporary file for upload: %s", err)
+	}
+	defer os.Remove(tf.Name())
+	defer tf.Close()
+
+	log.Println("Copying input data into temporary file so we can read the length")
+	if _, err := io.Copy(tf, src); err != nil {
+		return err
+	}
+
+	// Sync the file so that the contents are definitely on disk, then
+	// read the length of it.
+	if err := tf.Sync(); err != nil {
+		return fmt.Errorf("Error creating temporary file for upload: %s", err)
+	}
+
+	// Seek the file to the beginning so we can re-read all of it
+	if _, err := tf.Seek(0, 0); err != nil {
+		return fmt.Errorf("Error creating temporary file for upload: %s", err)
+	}
+
+	fi, err := tf.Stat()
+	if err != nil {
+		return fmt.Errorf("Error creating temporary file for upload: %s", err)
+	}
+
+	// Start the protocol
+	log.Println("Beginning file upload...")
+	fmt.Fprintln(w, "C0644", fi.Size(), dst)
+	if err := checkSCPStatus(r); err != nil {
+		return err
+	}
+
+	if _, err := io.Copy(w, tf); err != nil {
+		return err
+	}
+
+	fmt.Fprint(w, "\x00")
+	if err := checkSCPStatus(r); err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func scpUploadDirProtocol(name string, w io.Writer, r *bufio.Reader, f func() error) error {
+	log.Printf("SCP: starting directory upload: %s", name)
+	fmt.Fprintln(w, "D0755 0", name)
+	err := checkSCPStatus(r)
+	if err != nil {
+		return err
+	}
+
+	if err := f(); err != nil {
+		return err
+	}
+
+	fmt.Fprintln(w, "E")
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func scpUploadDir(root string, fs []os.FileInfo, w io.Writer, r *bufio.Reader) error {
+	for _, fi := range fs {
+		realPath := filepath.Join(root, fi.Name())
+
+		// Track if this is actually a symlink to a directory. If it is
+		// a symlink to a file we don't do any special behavior because uploading
+		// a file just works. If it is a directory, we need to know so we
+		// treat it as such.
+		isSymlinkToDir := false
+		if fi.Mode()&os.ModeSymlink == os.ModeSymlink {
+			symPath, err := filepath.EvalSymlinks(realPath)
+			if err != nil {
+				return err
+			}
+
+			symFi, err := os.Lstat(symPath)
+			if err != nil {
+				return err
+			}
+
+			isSymlinkToDir = symFi.IsDir()
+		}
+
+		if !fi.IsDir() && !isSymlinkToDir {
+			// It is a regular file (or symlink to a file), just upload it
+			f, err := os.Open(realPath)
+			if err != nil {
+				return err
+			}
+
+			err = func() error {
+				defer f.Close()
+				return scpUploadFile(fi.Name(), f, w, r)
+			}()
+
+			if err != nil {
+				return err
+			}
+
+			continue
+		}
+
+		// It is a directory, recursively upload
+		err := scpUploadDirProtocol(fi.Name(), w, r, func() error {
+			f, err := os.Open(realPath)
+			if err != nil {
+				return err
+			}
+			defer f.Close()
+
+			entries, err := f.Readdir(-1)
+			if err != nil {
+				return err
+			}
+
+			return scpUploadDir(realPath, entries, w, r)
+		})
+		if err != nil {
+			return err
+		}
+	}
+
+	return nil
+}
diff --git a/helper/ssh/communicator_test.go b/helper/ssh/communicator_test.go
new file mode 100644
index 000000000..53e2f538d
--- /dev/null
+++ b/helper/ssh/communicator_test.go
@@ -0,0 +1,157 @@
+// +build !race
+
+package ssh
+
+import (
+	"bytes"
+	"code.google.com/p/go.crypto/ssh"
+	"fmt"
+	"net"
+	"testing"
+)
+
+// private key for mock server
+const testServerPrivateKey = `-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----`
+
+var serverConfig = &ssh.ServerConfig{
+	PasswordCallback: func(c ssh.ConnMetadata, pass []byte) (*ssh.Permissions, error) {
+		if c.User() == "user" && string(pass) == "pass" {
+			return nil, nil
+		}
+		return nil, fmt.Errorf("password rejected for %q", c.User())
+	},
+}
+
+func init() {
+	// Parse and set the private key of the server, required to accept connections
+	signer, err := ssh.ParsePrivateKey([]byte(testServerPrivateKey))
+	if err != nil {
+		panic("unable to parse private key: " + err.Error())
+	}
+	serverConfig.AddHostKey(signer)
+}
+
+func newMockLineServer(t *testing.T) string {
+	l, err := net.Listen("tcp", "127.0.0.1:0")
+	if err != nil {
+		t.Fatalf("Unable to listen for connection: %s", err)
+	}
+
+	go func() {
+		defer l.Close()
+		c, err := l.Accept()
+		if err != nil {
+			t.Errorf("Unable to accept incoming connection: %s", err)
+		}
+		defer c.Close()
+		conn, chans, _, err := ssh.NewServerConn(c, serverConfig)
+		if err != nil {
+			t.Logf("Handshaking error: %v", err)
+		}
+		t.Log("Accepted SSH connection")
+		for newChannel := range chans {
+			channel, _, err := newChannel.Accept()
+			if err != nil {
+				t.Errorf("Unable to accept channel.")
+			}
+			t.Log("Accepted channel")
+
+			go func() {
+				defer channel.Close()
+				conn.OpenChannel(newChannel.ChannelType(), nil)
+			}()
+		}
+		conn.Close()
+	}()
+
+	return l.Addr().String()
+}
+
+func TestNew_Invalid(t *testing.T) {
+	clientConfig := &ssh.ClientConfig{
+		User: "user",
+		Auth: []ssh.AuthMethod{
+			ssh.Password("i-am-invalid"),
+		},
+	}
+
+	address := newMockLineServer(t)
+	conn := func() (net.Conn, error) {
+		conn, err := net.Dial("tcp", address)
+		if err != nil {
+			t.Errorf("Unable to accept incoming connection: %v", err)
+		}
+		return conn, err
+	}
+
+	config := &Config{
+		Connection: conn,
+		SSHConfig:  clientConfig,
+	}
+
+	_, err := New(address, config)
+	if err == nil {
+		t.Fatal("should have had an error connecting")
+	}
+}
+
+func TestStart(t *testing.T) {
+	clientConfig := &ssh.ClientConfig{
+		User: "user",
+		Auth: []ssh.AuthMethod{
+			ssh.Password("pass"),
+		},
+	}
+
+	address := newMockLineServer(t)
+	conn := func() (net.Conn, error) {
+		conn, err := net.Dial("tcp", address)
+		if err != nil {
+			t.Fatalf("unable to dial to remote side: %s", err)
+		}
+		return conn, err
+	}
+
+	config := &Config{
+		Connection: conn,
+		SSHConfig:  clientConfig,
+	}
+
+	client, err := New(address, config)
+	if err != nil {
+		t.Fatalf("error connecting to SSH: %s", err)
+	}
+
+	var cmd RemoteCmd
+	stdout := new(bytes.Buffer)
+	cmd.Command = "echo foo"
+	cmd.Stdout = stdout
+
+	client.Start(&cmd)
+}
diff --git a/helper/ssh/password.go b/helper/ssh/password.go
new file mode 100644
index 000000000..e5e2a3595
--- /dev/null
+++ b/helper/ssh/password.go
@@ -0,0 +1,27 @@
+package ssh
+
+import (
+	"code.google.com/p/go.crypto/ssh"
+	"log"
+)
+
+// An implementation of ssh.KeyboardInteractiveChallenge that simply sends
+// back the password for all questions. The questions are logged.
+func PasswordKeyboardInteractive(password string) ssh.KeyboardInteractiveChallenge {
+	return func(user, instruction string, questions []string, echos []bool) ([]string, error) {
+		log.Printf("Keyboard interactive challenge: ")
+		log.Printf("-- User: %s", user)
+		log.Printf("-- Instructions: %s", instruction)
+		for i, question := range questions {
+			log.Printf("-- Question %d: %s", i+1, question)
+		}
+
+		// Just send the password back for all questions
+		answers := make([]string, len(questions))
+		for i, _ := range answers {
+			answers[i] = string(password)
+		}
+
+		return answers, nil
+	}
+}
diff --git a/helper/ssh/password_test.go b/helper/ssh/password_test.go
new file mode 100644
index 000000000..e74b46e06
--- /dev/null
+++ b/helper/ssh/password_test.go
@@ -0,0 +1,27 @@
+package ssh
+
+import (
+	"code.google.com/p/go.crypto/ssh"
+	"reflect"
+	"testing"
+)
+
+func TestPasswordKeyboardInteractive_Impl(t *testing.T) {
+	var raw interface{}
+	raw = PasswordKeyboardInteractive("foo")
+	if _, ok := raw.(ssh.KeyboardInteractiveChallenge); !ok {
+		t.Fatal("PasswordKeyboardInteractive must implement KeyboardInteractiveChallenge")
+	}
+}
+
+func TestPasswordKeybardInteractive_Challenge(t *testing.T) {
+	p := PasswordKeyboardInteractive("foo")
+	result, err := p("foo", "bar", []string{"one", "two"}, nil)
+	if err != nil {
+		t.Fatalf("err not nil: %s", err)
+	}
+
+	if !reflect.DeepEqual(result, []string{"foo", "foo"}) {
+		t.Fatalf("invalid password: %#v", result)
+	}
+}