add cert/privkey scripts

tools/dump_pem.py

@@ -0,0 +1,21 @@
+#!/usr/bin/env python
+from __future__ import print_function
+import sys,fileinput,binascii
+try:
+    import ecdsa
+except:
+    print('python ecdsa module is required')
+    print('try running: ')
+    print('     pip install ecdsa')
+    sys.exit(1)
+
+
+if len(sys.argv) not in [2]:
+    print('usage: %s <key.pem>' % sys.argv[0])
+    sys.exit(1)
+
+pemkey = sys.argv[1]
+attestkey = ecdsa.SigningKey.from_pem(open(pemkey).read())
+
+print(binascii.hexlify(attestkey.to_string()))
+print(repr(attestkey.to_string()))