New answers tagged message-signing
1
This will be less of a theoretical answer and more of practical guidance; while developing Secp256k1 or Bitcoin libraries, I always found the following table handy:
y-parity
x-order
compression
recovery id
v
even
less than n
false
0
27
odd
less than n
false
1
28
even
more than n
false
2
29
odd
more than n
false
3
30
even
less than n
true
0
31
odd
less ...
0
tx_hash_big_endian":"5da8f74aa4d6612c58c0a740b4740579db57c95828e4cdf04e7d18c23b66cb4a","tx_hash":"4acb663bc2187d4ef0cde42858c957db790574b440a7c0582c61d6a44af7a85d",
Auto-correct ^ class S256Point(Point): ... def sec(self): '''returns the binary version of the SEC format''' return b'\x04' + self.x.num.to_bytes(32, 'big') \...
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