def testSignAndVerify(self):
msg = b'1231232131'
keyPair = CryptoUtil.genKeyPair()
privKey = CryptoUtil.getPrivateKey(keyPair)
pubKey = CryptoUtil.getPublicKey(keyPair)
sig = CryptoUtil.signMessage(privKey, msg)
self.assertTrue(CryptoUtil.verifySignature(pubKey, msg, sig), 'correct signature not verified')
def testBadSignature(self):
msg = b'1231232131'
keyPair = CryptoUtil.genKeyPair()
privKey = CryptoUtil.getPrivateKey(keyPair)
sig = CryptoUtil.signMessage(privKey, msg)
keyPair2 = CryptoUtil.genKeyPair()
pubKey2 = CryptoUtil.getPublicKey(keyPair2)
self.assertFalse(CryptoUtil.verifySignature(pubKey2, msg, sig), 'incorrect signature was verified as correct')
exportedKey = b'-----BEGIN RSA PRIVATE KEY-----\nMIICXAIBAAKBgQCyvh9t+A9qWzUZL2fPuh' + \
b'//LhAdnuRtnaG8slkrXo3AaTufedCH\nO+1kbz8csCeo0iQl0y4mQVW3Z3I3VWl/CGRFE9eSNw3gh' + \
b'doIYRB6dfo46kDY7GVf\ncYnSR7fR/LEBcKQ48HpxX8S8dMy/zkbfIFEB9tVsZz9wOvleJmib2igEY' + \
b'wIDAQAB\nAoGAUohRUODKlWx57yAhihxCK/zj+hllFmxDwzKC0/C7+U1d93wy2k7EhayMcr2w\nAlb' + \
b'N1B1X4NgoMSB177DjnoGMckX1r8A4jrvSDDqymyqQxsBHvYrMuzdLmNql8uHW\nSPp1HnKYyaOJGEW' + \
b'aevQmv2Hb0uu53gxWEvAEQUYJt0QFNKECQQC9KQfwM9FamgQR\niPAQLOCEAGIEr9a/zHjR9IkVfzT' + \
b'88zyMUNnnn8xBM96kDfpVKR5ge/Ahja179i9G\nG1jCFNGRAkEA8ea9mCOGIo4osriiM6/pRZn+zmD' + \
b'cQDhV9s0CTMtlJvxykVO18EQs\nWlHJpmWQqAmn4d8TM1xxJrf7acOcdwO8swJATsgq/TinpeNldGQ' + \
b'jD6mRLIj4Sdlu\nSF2BqHf/LAvZ5svrWMlHp/de230d6hfEPfmtJCQaQ+885NcIo1s6YULIcQJBAMd' + \
b't\noXUiJF2ssaTWTvMp3blCAi4G8M4JI+X6kiDZtqTzj0h8qQxSR/aWYxbJuP6wJzYy\nANRhK+/t0' + \
b'loZqI7+B70CQH2LLsccb1MHAkAGRqDZjtAfFAt7p7IaNeEp0jo4TcvK\ny50t2C9i5aa5tY6TFp4pQ' + \
b'3Vfk6l+21J6e5BKari9wfY=\n-----END RSA PRIVATE KEY-----'
scroogePrivK = Crypto.PublicKey.RSA.importKey(exportedKey)
scroogePubK = CryptoUtil.getPublicKey(scroogePrivK)
keyPair = CryptoUtil.genKeyPair()
alicePrivK = CryptoUtil.getPrivateKey(keyPair)
alicePubK = CryptoUtil.getPublicKey(keyPair)
# Make a genesis transaction
genesis = Transaction()
genesisValue = 25.0
genesis.addOutput(genesisValue, scroogePubK)
genesis.finalize()
# Make an initial pool
initialPool = UTXOPool()
utxo = UTXO(genesis.getHash(), 0)
initialPool.addUTXO(utxo, genesis.getOutput(0))
# Note this transaction is not valid -- one of its inputs does not exist
tx2in2out = Transaction()
import unittest
import CryptoUtil
from Block import Block
from Block import COINBASE
from BlockChain import CUT_OFF_AGE
from BlockChain import BlockChain
from Transaction import Transaction
from BlockHandler import BlockHandler
scroogeKeyPair = CryptoUtil.genKeyPair()
scroogePriKey = CryptoUtil.getPrivateKey(scroogeKeyPair)
scroogePubKey = CryptoUtil.getPublicKey(scroogeKeyPair)
def signInput(tx, priKey, index):
tx.addSignature(CryptoUtil.signMessage(priKey, tx.getRawDataToSign(index)), index)
class BlockChainTest(unittest.TestCase):
def testMethods(self):
genesis = Block(b'', scroogePubKey)
genesis.finalize()
blockChain = BlockChain(genesis)
blockHandler = BlockHandler(blockChain)
# Genesis block test
self.assertEqual(genesis.getHash(), blockChain.getMaxHeightBlock().getHash(), \
'genesis should be max height block')
self.assertEqual(blockChain.getMaxHeightBlock(), genesis, \
'genesis should be max height block')