Using signer secret key instead of crypto secret key

Tribler · Mar 7, 2018 · 265fc07 · 265fc07
1 parent b30809a
commit 265fc07
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Showing 2 changed files with 5 additions and 3 deletions.
diff --git a/ipv8/attestation/trustchain/block.py b/ipv8/attestation/trustchain/block.py
@@ -291,7 +291,7 @@ def err(reason, double_spend=False):
                 if linklinked is not None and linklinked.hash != self.hash:
                     err("Double countersign fraud")
                     if 'double_sig' in self.transaction and self.transaction['double_sig'] \
-                        and 'double_sig' in linklinked.transaction and linklinked.transactino['double_sig']:
+                        and 'double_sig' in linklinked.transaction and linklinked.transaction['double_sig']:
                         (sign_secret, private_key) = crypto.recover_double_signature(
                             self.transaction['double_sig'],
                             linklinked.transaction['double_sig'],
@@ -331,7 +331,8 @@ def sign(self, key):
         # Attach custom double signature to the transaction itself
         sign_secret = doublesign.sha256("%s%s" % (key, self.block_id))
         if self.transaction and isinstance(self.transaction, dict):
-            self.transaction['double_sig'] = crypto.create_custom_signature(key.key.hex_sk(), data, sign_secret)
+            signing_secret_key_hex = key.key.signer.sk[:32].encode('hex')
+            self.transaction['double_sig'] = crypto.create_custom_signature(signing_secret_key_hex, data, sign_secret)
 
     @classmethod
     def create(cls, transaction, database, public_key, link=None, link_pk=None):

diff --git a/test/attestation/trustchain/test_block.py b/test/attestation/trustchain/test_block.py
@@ -190,5 +190,6 @@ def test_double_spending(self):
 
         # Check equality of the private keys
         recovered_private_key = validation[2][1]
-        self.assertEqual(key.key.sk, recovered_private_key, "Recovered private key did not match.")
+        original_signing_secret_key = key.key.signer.sk[:32]
+        self.assertEqual(original_signing_secret_key, recovered_private_key, "Recovered private key did not match.")