diff --git a/seclient/seclient.go b/seclient/seclient.go
index 4c52c73..0e117c2 100644
--- a/seclient/seclient.go
+++ b/seclient/seclient.go
@@ -1,13 +1,23 @@
 package seclient
 
 import (
+	"encoding/hex"
+	"io"
+	"math/rand"
 	"net/http"
 	"net/http/cookiejar"
+	"time"
 
 	dac "github.com/Snawoot/go-http-digest-auth-client"
 	"golang.org/x/net/publicsuffix"
 )
 
+const (
+	ANON_EMAIL_LOCALPART_BYTES = 32
+	ANON_PASSWORD_BYTES        = 20
+	DEVICE_ID_BYTES            = 20
+)
+
 type SEEndpoints struct {
 	RegisterSubscriber string
 	SubscriberLogin    string
@@ -26,21 +36,32 @@ var DefaultSEEndpoints = SEEndpoints{
 
 type SESettings struct {
 	ClientVersion   string
+	ClientType      string
+	DeviceHash      string
+	DeviceName      string
 	OperatingSystem string
-	APIUsername     string
-	APISecret       string
 	Endpoints       SEEndpoints
 }
 
 var DefaultSESettings = SESettings{
 	ClientVersion:   "Stable 74.0.3911.232",
+	ClientType:      "se0316",
+	DeviceName:      "Opera-Browser-Client",
+	DeviceHash:      "",
 	OperatingSystem: "Windows",
 	Endpoints:       DefaultSEEndpoints,
 }
 
 type SEClient struct {
-	HttpClient *http.Client
-	Settings SESettings
+	HttpClient           *http.Client
+	Settings             SESettings
+	SubscriberEmail      string
+	SubscriberPassword   string
+	DeviceID             string
+	AssignedDeviceID     string
+	AssignedDevideIDHash string
+	DevicePassword       string
+	rng                  *rand.Rand
 }
 
 // Instantiates SurfEasy client with default settings and given API keys.
@@ -58,11 +79,29 @@ func NewSEClient(apiUsername, apiSecret string, transport http.RoundTripper) (*S
 		return nil, err
 	}
 
+	rng := rand.New(rand.NewSource(time.Now().UnixNano()))
+
+	device_id, err := randomCapitalHexString(rng, DEVICE_ID_BYTES)
+	if err != nil {
+		return nil, err
+	}
+
 	return &SEClient{
 		HttpClient: &http.Client{
 			Transport: dac.NewDigestTransport(apiUsername, apiSecret, transport),
-			Jar: jar,
+			Jar:       jar,
 		},
 		Settings: DefaultSESettings,
+		rng:      rng,
+		DeviceID: device_id,
 	}, nil
 }
+
+func randomCapitalHexString(rng io.Reader, length int) (string, error) {
+	b := make([]byte, length)
+	_, err := rng.Read(b)
+	if err != nil {
+		return "", err
+	}
+	return hex.EncodeToString(b), nil
+}