Pure python EC

This removes the dependency on OpenSSL for the interaction tests, by providing a pure-Python
toy implementation of secp256k1.

Github-Pull: #15826
Rebased-From: 8c7b9324ca3f3ffb178bea56a96ea23f7e0383cb

1 files changed, 6 insertions, 6 deletions

diff --git a/test/functional/feature_block.py b/test/functional/feature_block.py
index c62fbb8e2..1aa5ae142 100755
--- a/test/functional/feature_block.py
+++ b/test/functional/feature_block.py
@@ -14,7 +14,7 @@ from test_framework.blocktools import (
     get_legacy_sigopcount_block,
     MAX_BLOCK_SIGOPS,
 )
-from test_framework.key import CECKey
+from test_framework.key import ECKey
 from test_framework.messages import (
     CBlock,
     COIN,
@@ -86,9 +86,9 @@ class FullBlockTest(BitcoinTestFramework):
         self.bootstrap_p2p()  # Add one p2p connection to the node
 
         self.block_heights = {}
-        self.coinbase_key = CECKey()
-        self.coinbase_key.set_secretbytes(b"horsebattery")
-        self.coinbase_pubkey = self.coinbase_key.get_pubkey()
+        self.coinbase_key = ECKey()
+        self.coinbase_key.generate()
+        self.coinbase_pubkey = self.coinbase_key.get_pubkey().get_bytes()
         self.tip = None
         self.blocks = {}
         self.genesis_hash = int(self.nodes[0].getbestblockhash(), 16)
@@ -514,7 +514,7 @@ class FullBlockTest(BitcoinTestFramework):
             tx.vin.append(CTxIn(COutPoint(b39.vtx[i].sha256, 0), b''))
             # Note: must pass the redeem_script (not p2sh_script) to the signature hash function
             (sighash, err) = SignatureHash(redeem_script, tx, 1, SIGHASH_ALL)
-            sig = self.coinbase_key.sign(sighash) + bytes(bytearray([SIGHASH_ALL]))
+            sig = self.coinbase_key.sign_ecdsa(sighash) + bytes(bytearray([SIGHASH_ALL]))
             scriptSig = CScript([sig, redeem_script])
 
             tx.vin[1].scriptSig = scriptSig
@@ -1270,7 +1270,7 @@ class FullBlockTest(BitcoinTestFramework):
             tx.vin[0].scriptSig = CScript()
             return
         (sighash, err) = SignatureHash(spend_tx.vout[0].scriptPubKey, tx, 0, SIGHASH_ALL)
-        tx.vin[0].scriptSig = CScript([self.coinbase_key.sign(sighash) + bytes(bytearray([SIGHASH_ALL]))])
+        tx.vin[0].scriptSig = CScript([self.coinbase_key.sign_ecdsa(sighash) + bytes(bytearray([SIGHASH_ALL]))])
 
     def create_and_sign_transaction(self, spend_tx, value, script=CScript([OP_TRUE])):
         tx = self.create_tx(spend_tx, 0, value, script)