diff options
Diffstat (limited to 'qa/rpc-tests/bipdersig-p2p.py')
| -rwxr-xr-x | qa/rpc-tests/bipdersig-p2p.py | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/qa/rpc-tests/bipdersig-p2p.py b/qa/rpc-tests/bipdersig-p2p.py new file mode 100755 index 0000000000..ff0c878898 --- /dev/null +++ b/qa/rpc-tests/bipdersig-p2p.py @@ -0,0 +1,183 @@ +#!/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() |