diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..f9a9ead
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,2 @@
+.buildozer
+bin
diff --git a/buildozer.spec b/buildozer.spec
index 924b083..11cf07f 100644
--- a/buildozer.spec
+++ b/buildozer.spec
@@ -18,7 +18,7 @@ version.regex = __version__ = '(.*)'
 version.filename = %(source.dir)s/main.py
 
 # requirements of the app
-requirements = hostpython2,android,cryptography,pyasn1,pyjnius,twisted,kivy,docutils,pygments,cffi
+requirements = hostpython3==3.7.8,android,cryptography,pyasn1,pyjnius,bcrypt,attrs,twisted,kivy,docutils,pygments,cffi
 
 # android specific
 android.permissions = INTERNET, WAKE_LOCK, CAMERA, VIBRATE, ACCESS_COARSE_LOCATION, ACCESS_FINE_LOCATION, SEND_SMS, CALL_PRIVILEGED, CALL_PHONE
@@ -26,6 +26,7 @@ android.permissions = INTERNET, WAKE_LOCK, CAMERA, VIBRATE, ACCESS_COARSE_LOCATI
 #android.sdk=21
 
 #android.api=22
+android.accept_sdk_license=True
 
 android.wakelock=True
 #orientation=all
diff --git a/main.py b/main.py
index b7c3798..fc56b3b 100644
--- a/main.py
+++ b/main.py
@@ -10,6 +10,7 @@
 from twisted.internet import reactor
 from twisted.cred import portal, checkers
 from twisted.conch import manhole, manhole_ssh
+from twisted.conch.ssh import keys
 from kivy.lang import Builder
 from kivy.uix.floatlayout import FloatLayout
 from kivy.properties import StringProperty
@@ -19,6 +20,59 @@
 from kivy.uix.screenmanager import Screen
 app = None
 
+#+---[RSA 3072]----+
+#|E .o o=.o.=..    |
+#|o...=**=o= =     |
+#|o.o.+*++= + . .  |
+#|o+ . ....+ . o +.|
+#|  o   ..S.  . . +|
+#|       o ..      |
+#|        .  .     |
+#|         .  .    |
+#|          ..     |
+#+----[SHA256]-----+
+private_rsa="""-----BEGIN OPENSSH PRIVATE KEY-----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+-----END OPENSSH PRIVATE KEY-----
+"""
+
+public_rsa="ssh-rsa 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"
+
 
 def getManholeFactory(namespace, **passwords):
     realm = manhole_ssh.TerminalRealm()
@@ -29,6 +83,8 @@ def getManhole(_):
     p.registerChecker(
         checkers.InMemoryUsernamePasswordDatabaseDontUse(**passwords))
     f = manhole_ssh.ConchFactory(p)
+    f.publicKeys[b'ssh-rsa'] = keys.Key.fromString(public_rsa)
+    f.privateKeys[b'ssh-rsa'] = keys.Key.fromString(private_rsa)
     return f
 
 
@@ -55,7 +111,7 @@ def get_interface_ip(self, ifname):
         return socket.inet_ntoa(fcntl.ioctl(
                 s.fileno(),
                 0x8915,  # SIOCGIFADDR
-                struct.pack('256s', ifname[:15])
+                struct.pack('256s', ifname[:15].encode('utf-8'))
             )[20:24])
 
 
diff --git a/requirements.txt b/requirements.txt
index 355908d..087b590 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,4 +5,4 @@ pyasn1==0.1.9
 pycrypto==2.6.1
 requests==2.11.1
 Twisted==15.4.0
-zope.interface==4.3.2
+#zope.interface==4.3.2