Re: VERIFYING RAW BITCOIN TX USING SAGEMATH (pure ecdsa in math)
i have used this code for hashing unsigned tx above :
this is the resul :
Quote
import hashlib
e = m.decode('hex')
z = hashlib.sha256(hashlib.sha256(e).digest()).digest()
z = z.encode('hex_codec')
print z
and resulting :e = m.decode('hex')
z = hashlib.sha256(hashlib.sha256(e).digest()).digest()
z = z.encode('hex_codec')
print z
Quote
19cc06bd75255f3594abeca69af20b505c7f2737dea64e4d2e36ba69f06ed092
so the r, s, and z pair from signed tx is :Quote
z = 0x19cc06bd75255f3594abeca69af20b505c7f2737dea64e4d2e36ba69f06ed092
r = 0x4117f9f3173b915d03be6170d7af520bfa78d9d9fd35c829d974d3aaead09ae9
s = 0x8a032016f639b730779945f7b5bedb3701a0645c1752c1b27fccc617019f172b
and still resulting that the signature is invalid r = 0x4117f9f3173b915d03be6170d7af520bfa78d9d9fd35c829d974d3aaead09ae9
s = 0x8a032016f639b730779945f7b5bedb3701a0645c1752c1b27fccc617019f172b
this is the resul :
Quote
C.xy = 0x760a4453d69c21c2c17131867f3862a802036818cbc6abaec5091cafa30b9825
r = 0x4117f9f3173b915d03be6170d7af520bfa78d9d9fd35c829d974d3aaead09ae9
i confused about this......r = 0x4117f9f3173b915d03be6170d7af520bfa78d9d9fd35c829d974d3aaead09ae9