def test_exercise_3(self):
r = 0x37206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c6
s = 0x8ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec
sig = Signature(r, s)
self.assertEqual(
sig.der().hex(),
'3045022037206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c60221008ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec'
)
def test_der(self):
testcases = (
(1, 2),
(randint(0, 2**256), randint(0, 2**255)),
(randint(0, 2**256), randint(0, 2**255)),
)
for r, s in testcases:
sig = Signature(r, s)
der = sig.der()
sig2 = Signature.parse(der)
self.assertEqual(sig2.r, r)
self.assertEqual(sig2.s, s)
def build_transaction2(transidsarr,
transindexarr,
pubkeysarr,
amountsarr,
tnet=True):
tx_ins = buildinputs(transidsarr, transindexarr)
print("ins")
print(tx_ins)
tx_outs = buildoutputs(pubkeysarr, amountsarr)
print("pubkeys")
print(pubkeysarr)
print("outs")
print(tx_outs)
tx_obj = Tx(version=1,
tx_ins=tx_ins,
tx_outs=tx_outs,
locktime=0,
testnet=tnet)
#hash_type = SIGHASH_ALL
#z = tx_obj.sig_hash(0, hash_type)
#pk = PrivateKey(secret=privatekey)
for i in range(len(tx_ins)):
sighash = SIGHASH_ALL
z = tx_obj.sig_hash(i, sighash)
#print("getting sign:")
r, s = ardubridge.sign(z)
s = int(s)
others = N - s
if others < s:
s = others
#print("r: " + str(r))
#print("s: " + str(s))
sig = Signature(int(r), s)
der = sig.der()
sig = der + bytes([sighash])
#sec = pk.point.sec()
#print("public point:")
#print(int(pk.point.x.hex(), 16))
#print(int(pk.point.y.hex(), 16))
x, y = ardubridge.getpubkey()
if (x == -1 and y == -1):
return '-1'
#pub = S256Point(53237820045986896539096637357322002537362350769420441605069248472301971758546, 49407176618187043960559197373734381057571970898731550795341045595301080938882)
pub = S256Point(int(x), int(y))
sec2 = pub.sec()
tx_obj.tx_ins[i].script_sig = Script([sig, sec2])
return hexlify(tx_obj.serialize())
from ecc import Signature r = 0x37206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c6 s = 0x8ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec sign = Signature(r, s) print(sign.der().hex())
from ecc import Signature r = 0x37206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c6 s = 0x8ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec firma = Signature(r, s) print(firma.der().hex())
priv = PrivateKey(5003)
priv2 = PrivateKey(2021**5)
priv3 = PrivateKey(0x54321deadbeef)
print(priv.wif(compressed=True, testnet=True))
print(priv2.wif(compressed=False, testnet=True))
print(priv3.wif(compressed=True, testnet=False))
"""
priv = PrivateKey(9092092091210920920919099930002)
print(priv.point.address(testnet=True))
print(sys.getsizeof(priv))
r = 0x37206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c6
s = 0x8ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec
dat_sig = Signature(r, s)
#print(type(dat_sig.der().hex().encode('ascii')))
print(dat_sig.der().hex())
print(sys.getsizeof(dat_sig))
print(encode_base58_checksum(dat_sig.der()))
print(sys.getsizeof(dat_sig))
num = 10011545
print(int_to_little_endian(num, 8))
# # * s = # # `0x8ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec` # In[4]: # Exercise 3 # Find 'the DER' format for a signature whose `r` and `s` values from ecc import Signature r = 0x37206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c6 s = 0x8ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec sig = Signature(r, s) print(sig.der().hex()) # result : 3045022037206a0610995c58074999cb9767b87af4c4978db68c06e8e6e81d282047a7c60221008ca63759c1157ebeaec0d03cecca119fc9a75bf8e6d0fa65c841c8e2738cdaec # ### Exercise 4 # # Convert the following hex to binary and then to Base58: # # * `7c076ff316692a3d7eb3c3bb0f8b1488cf72e1afcd929e29307032997a838a3d` # * `eff69ef2b1bd93a66ed5219add4fb51e11a840f404876325a1e8ffe0529a2c` # * `c7207fee197d27c618aea621406f6bf5ef6fca38681d82b2f06fddbdce6feab6` # In[5]: # Exercise 4 # Convert the following hex to binary and then to Base58
