def test_ssl_sign_verify(self):
key = KEY()
key.set_secret(decodehexstr("30d1d8d1d243ab41a80a3cc1481a626a137f771a636b2daca06c1f86cdfecffb"))
sig = key.sign("cool")
# verify on another key
key2 = KEY()
key2.set_pubkey(decodehexstr("030a43196c8bf389c0ce5987a3f4dac57f4ca0d9733c232659717d9404074b4504"))
self.assertEquals(key2.verify("cool", sig), 1)
self.assertEquals(key2.verify("coolx", sig), 0)
self.assertEquals(key2.verify("cool", decodehexstr("3045022100ea3cbfca49123ecdcc419cf3277597307dca70b548ca1d4312f39186b043e86802201057af5c3889b65a59333d4f23bea915e76c2c26606dd35c57e00adf416ca31600")), 0)
def checksig(vm, sig_param, pubkey_param):
transaction, inputindex, unspent_script = vm.checksig_data
#Hash type is the last byte of the signature
hash_type, sig = ord(sig_param[-1]), sig_param[:-1]
# last 5 bits of hash_type : 1=SIGHASH_ALL,2=SIGHASH_NONE, 3=SIGHASH_SINGLE
# SIGHASH_ANYONECANPAY = 0x80
# For performance reasons no full copy is made of the transaction
# although it would be simpler to read.
# e.g. tx_tmp = copy.deepcopy(transaction)
# The input scripts are saved and then restored.
tx_tmp = Tx(transaction.version,
[TxIn(txin.previous_output, txin.script, txin.sequence) for txin in transaction.in_list],
[TxOut(txout.value, txout.script) for txout in transaction.out_list],
transaction.locktime)
#Save input scripts to restore them later
#inlist = transaction.in_list
#outlist = transaction.out_list
#inscripts = [txin.script for txin in transaction.in_list]
#TODO: blank out ouputs depending of hash_type (SIGHASH_NONE, SIGHASH_SINGLE)
if (hash_type & SIGHASH_MASK == SIGHASH_NONE):
tx_tmp.out_list = []
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE):
if (inputindex > len(tx_tmp.out_list)):
raise Exception("OP_CHECKSIG: no corresponding output for input %d using SIGHASH_SINGLE " % (inputindex))
#n-1 empty TxOuts + original Txout
tx_tmp.out_list = [TxOut(-1, Script([])) for _ in range(inputindex)] + \
[tx_tmp.out_list[inputindex]]
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE or
hash_type & SIGHASH_MASK == SIGHASH_NONE):
# let others update at will
for i in range(len(tx_tmp.in_list)):
if i != inputindex:
tx_tmp.in_list[i].sequence = 0
#blank out other inputs in case of SIGHASH_ANYONECANPAY
if (hash_type & SIGHASH_ANYONECANPAY):
tx_tmp.in_list = [tx_tmp.in_list[inputindex]]
inputindex = 0
#blank out input scripts
for txin in tx_tmp.in_list:
txin.script = Script([])
#except the current one that is replaced by the signed part (e.g. from the last OP_CODESEPARATOR)
# of current_script with signature push_data removed
# note: only 'optimal' push_data instructions with the same signature are removed
current_script = Script(filter(lambda instr: instr!=push_data_instruction(sig_param),
vm.current_script.signed_part().instructions))
tx_tmp.in_list[inputindex].script = current_script
#serialize and append hash type
enctx = TxSerializer().serialize(tx_tmp) + chr(hash_type) + b"\x00\x00\x00"
#print "enctx:", hexstr(enctx)
#print "sig:", hexstr(sig)
#print "pubkey:", hexstr(pubkey_param)
#Get hash
hash = doublesha256(enctx)
#Verify
key = KEY()
key.set_pubkey(pubkey_param)
#ECDSA_verify: 1 = OK, 0=NOK, -1=ERROR
result = key.verify(hash, sig) == 1
if not result:
pass
#Restore transaction scripts
#for txin, script in zip(inlist,inscripts):
# txin.script = script
#transaction.in_list = inlist
return (result)
def checksig(vm, sig_param, pubkey_param):
transaction, inputindex, unspent_script = vm.checksig_data
#Hash type is the last byte of the signature
hash_type, sig = ord(sig_param[-1]), sig_param[:-1]
# last 5 bits of hash_type : 1=SIGHASH_ALL,2=SIGHASH_NONE, 3=SIGHASH_SINGLE
# SIGHASH_ANYONECANPAY = 0x80
# For performance reasons no full copy is made of the transaction
# although it would be simpler to read.
# e.g. tx_tmp = copy.deepcopy(transaction)
# The input scripts are saved and then restored.
tx_tmp = Tx(transaction.version, [
TxIn(txin.previous_output, txin.script, txin.sequence)
for txin in transaction.in_list
], [TxOut(txout.value, txout.script) for txout in transaction.out_list],
transaction.locktime)
#Save input scripts to restore them later
#inlist = transaction.in_list
#outlist = transaction.out_list
#inscripts = [txin.script for txin in transaction.in_list]
#TODO: blank out ouputs depending of hash_type (SIGHASH_NONE, SIGHASH_SINGLE)
if (hash_type & SIGHASH_MASK == SIGHASH_NONE):
tx_tmp.out_list = []
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE):
if (inputindex > len(tx_tmp.out_list)):
raise Exception(
"OP_CHECKSIG: no corresponding output for input %d using SIGHASH_SINGLE "
% (inputindex))
#n-1 empty TxOuts + original Txout
tx_tmp.out_list = [TxOut(-1, Script([])) for _ in range(inputindex)] + \
[tx_tmp.out_list[inputindex]]
if (hash_type & SIGHASH_MASK == SIGHASH_SINGLE
or hash_type & SIGHASH_MASK == SIGHASH_NONE):
# let others update at will
for i in range(len(tx_tmp.in_list)):
if i != inputindex:
tx_tmp.in_list[i].sequence = 0
#blank out other inputs in case of SIGHASH_ANYONECANPAY
if (hash_type & SIGHASH_ANYONECANPAY):
tx_tmp.in_list = [tx_tmp.in_list[inputindex]]
inputindex = 0
#blank out input scripts
for txin in tx_tmp.in_list:
txin.script = Script([])
#except the current one that is replaced by the signed part (e.g. from the last OP_CODESEPARATOR)
# of current_script with signature push_data removed
# note: only 'optimal' push_data instructions with the same signature are removed
current_script = Script(
filter(lambda instr: instr != push_data_instruction(sig_param),
vm.current_script.signed_part().instructions))
tx_tmp.in_list[inputindex].script = current_script
#serialize and append hash type
enctx = TxSerializer().serialize(tx_tmp) + chr(hash_type) + b"\x00\x00\x00"
#print "enctx:", hexstr(enctx)
#print "sig:", hexstr(sig)
#print "pubkey:", hexstr(pubkey_param)
#Get hash
hash = doublesha256(enctx)
#Verify
key = KEY()
key.set_pubkey(pubkey_param)
#ECDSA_verify: 1 = OK, 0=NOK, -1=ERROR
result = key.verify(hash, sig) == 1
if not result:
pass
#Restore transaction scripts
#for txin, script in zip(inlist,inscripts):
# txin.script = script
#transaction.in_list = inlist
return (result)
def test_set_pubkey(self):
sig = decodehexstr("3046022100b2a3e589f5ccd266b0b3ca34ec28a8730c34f16e7de2889f91fcb63824cb0da9022100b04e7b58680c55bb3cd5394c0feb5cfad98ba3695802e4fab61308f18d474031")
key2 = KEY()
key2.set_pubkey(decodehexstr("030a43196c8bf389c0ce5987a3f4dac57f4ca0d9733c232659717d9404074b4504"))
self.assertEquals(key2.verify("cool", sig), 1)
