bootloader verifies signature

tools/gen_keys.py

@@ -0,0 +1,20 @@
+from ecdsa import SigningKey, NIST256p
+
+sk = SigningKey.generate(curve = NIST256p)
+
+sk_name = 'signing_key.pem'
+print('Signing key for signing device firmware: '+sk_name)
+open(sk_name,'wb+').write(sk.to_pem())
+
+vk = sk.get_verifying_key()
+
+print('Public key in various formats:')
+print()
+print([c for c in vk.to_string()])
+print()
+print(''.join(['%02x'%c for c in vk.to_string()]))
+print()
+print('"\\x' + '\\x'.join(['%02x'%c for c in vk.to_string()]) + '"')
+print()
+
+