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diff --git a/qa/rpc-tests/bipdersig-p2p.py b/qa/rpc-tests/bipdersig-p2p.py
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+#!/usr/bin/env python2
+#
+# Distributed under the MIT/X11 software license, see the accompanying
+# file COPYING or http://www.opensource.org/licenses/mit-license.php.
+#
+
+from test_framework import ComparisonTestFramework
+from util import *
+from mininode import CTransaction, NetworkThread
+from blocktools import create_coinbase, create_block
+from binascii import hexlify, unhexlify
+import cStringIO
+from comptool import TestInstance, TestManager
+from script import CScript
+import time
+
+# A canonical signature consists of:
+# <30> <total len> <02> <len R> <R> <02> <len S> <S> <hashtype>
+def unDERify(tx):
+ '''
+ Make the signature in vin 0 of a tx non-DER-compliant,
+ by adding padding after the S-value.
+ '''
+ scriptSig = CScript(tx.vin[0].scriptSig)
+ newscript = []
+ for i in scriptSig:
+ if (len(newscript) == 0):
+ newscript.append(i[0:-1] + '\0' + i[-1])
+ else:
+ newscript.append(i)
+ tx.vin[0].scriptSig = CScript(newscript)
+
+'''
+This test is meant to exercise BIP66 (DER SIG).
+Connect to a single node.
+Mine 2 (version 2) blocks (save the coinbases for later).
+Generate 98 more version 2 blocks, verify the node accepts.
+Mine 749 version 3 blocks, verify the node accepts.
+Check that the new DERSIG rules are not enforced on the 750th version 3 block.
+Check that the new DERSIG rules are enforced on the 751st version 3 block.
+Mine 199 new version blocks.
+Mine 1 old-version block.
+Mine 1 new version block.
+Mine 1 old version block, see that the node rejects.
+'''
+
+class BIP66Test(ComparisonTestFramework):
+
+ def __init__(self):
+ self.num_nodes = 1
+
+ def setup_network(self):
+ # Must set the blockversion for this test
+ self.nodes = start_nodes(1, self.options.tmpdir,
+ extra_args=[['-debug', '-whitelist=127.0.0.1', '-blockversion=2']],
+ binary=[self.options.testbinary])
+
+ def run_test(self):
+ test = TestManager(self, self.options.tmpdir)
+ test.add_all_connections(self.nodes)
+ NetworkThread().start() # Start up network handling in another thread
+ test.run()
+
+ def create_transaction(self, node, coinbase, to_address, amount):
+ from_txid = node.getblock(coinbase)['tx'][0]
+ inputs = [{ "txid" : from_txid, "vout" : 0}]
+ outputs = { to_address : amount }
+ rawtx = node.createrawtransaction(inputs, outputs)
+ signresult = node.signrawtransaction(rawtx)
+ tx = CTransaction()
+ f = cStringIO.StringIO(unhexlify(signresult['hex']))
+ tx.deserialize(f)
+ return tx
+
+ def get_tests(self):
+
+ self.coinbase_blocks = self.nodes[0].generate(2)
+ self.tip = int ("0x" + self.nodes[0].getbestblockhash() + "L", 0)
+ self.nodeaddress = self.nodes[0].getnewaddress()
+ self.last_block_time = time.time()
+
+ ''' 98 more version 2 blocks '''
+ test_blocks = []
+ for i in xrange(98):
+ block = create_block(self.tip, create_coinbase(2), self.last_block_time + 1)
+ block.nVersion = 2
+ block.rehash()
+ block.solve()
+ test_blocks.append([block, True])
+ self.last_block_time += 1
+ self.tip = block.sha256
+ yield TestInstance(test_blocks, sync_every_block=False)
+
+ ''' Mine 749 version 3 blocks '''
+ test_blocks = []
+ for i in xrange(749):
+ block = create_block(self.tip, create_coinbase(2), self.last_block_time + 1)
+ block.nVersion = 3
+ block.rehash()
+ block.solve()
+ test_blocks.append([block, True])
+ self.last_block_time += 1
+ self.tip = block.sha256
+ yield TestInstance(test_blocks, sync_every_block=False)
+
+ '''
+ Check that the new DERSIG rules are not enforced in the 750th
+ version 3 block.
+ '''
+ spendtx = self.create_transaction(self.nodes[0],
+ self.coinbase_blocks[0], self.nodeaddress, 1.0)
+ unDERify(spendtx)
+ spendtx.rehash()
+
+ block = create_block(self.tip, create_coinbase(2), self.last_block_time + 1)
+ block.nVersion = 3
+ block.vtx.append(spendtx)
+ block.hashMerkleRoot = block.calc_merkle_root()
+ block.rehash()
+ block.solve()
+
+ self.last_block_time += 1
+ self.tip = block.sha256
+ yield TestInstance([[block, True]])
+
+ '''
+ Check that the new DERSIG rules are enforced in the 751st version 3
+ block.
+ '''
+ spendtx = self.create_transaction(self.nodes[0],
+ self.coinbase_blocks[1], self.nodeaddress, 1.0)
+ unDERify(spendtx)
+ spendtx.rehash()
+
+ block = create_block(self.tip, create_coinbase(1), self.last_block_time + 1)
+ block.nVersion = 3
+ block.vtx.append(spendtx)
+ block.hashMerkleRoot = block.calc_merkle_root()
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ yield TestInstance([[block, False]])
+
+ ''' Mine 199 new version blocks on last valid tip '''
+ test_blocks = []
+ for i in xrange(199):
+ block = create_block(self.tip, create_coinbase(1), self.last_block_time + 1)
+ block.nVersion = 3
+ block.rehash()
+ block.solve()
+ test_blocks.append([block, True])
+ self.last_block_time += 1
+ self.tip = block.sha256
+ yield TestInstance(test_blocks, sync_every_block=False)
+
+ ''' Mine 1 old version block '''
+ block = create_block(self.tip, create_coinbase(1), self.last_block_time + 1)
+ block.nVersion = 2
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ self.tip = block.sha256
+ yield TestInstance([[block, True]])
+
+ ''' Mine 1 new version block '''
+ block = create_block(self.tip, create_coinbase(1), self.last_block_time + 1)
+ block.nVersion = 3
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ self.tip = block.sha256
+ yield TestInstance([[block, True]])
+
+ ''' Mine 1 old version block, should be invalid '''
+ block = create_block(self.tip, create_coinbase(1), self.last_block_time + 1)
+ block.nVersion = 2
+ block.rehash()
+ block.solve()
+ self.last_block_time += 1
+ yield TestInstance([[block, False]])
+
+if __name__ == '__main__':
+ BIP66Test().main()