choose_tx_from account, and use deterministic signatures (issue #323)

[electrum-nvc.git] / lib / transaction.py

diff --git a/lib/transaction.py b/lib/transaction.py
index c6b0b03..27a9ef1 100644 (file)
--- a/lib/transaction.py
+++ b/lib/transaction.py
@@ -524,7 +524,7 @@ class Transaction:
                     secexp = pkey.secret
                     private_key = ecdsa.SigningKey.from_secret_exponent( secexp, curve = SECP256k1 )
                     public_key = private_key.get_verifying_key()
-                    sig = private_key.sign_digest( Hash( tx_for_sig.decode('hex') ), sigencode = ecdsa.util.sigencode_der )
+                    sig = private_key.sign_digest_deterministic( Hash( tx_for_sig.decode('hex') ), hashfunc=hashlib.sha256, sigencode = ecdsa.util.sigencode_der )
                     assert public_key.verify_digest( sig, Hash( tx_for_sig.decode('hex') ), sigdecode = ecdsa.util.sigdecode_der)
                     signatures.append( sig.encode('hex') )
                     print_error("adding signature for", pubkey)