New answers tagged signature
4
votes
Accepted
Segwit includes the input amount in the SignatureHash. What possible attack can this prevent?
Consider a transaction that has 2 inputs and 1 output. Let's say that the inputs are both 1 BTC and the output is 1.5 BTC. This would mean that the transaction pays a 0.5 BTC fee, which is ridiculous.
...
1
vote
Accepted
What is maxsigcachesize?
Bitcoin Core caches the outcome of script and signature validations, so that when they are reoccur, they don't need to be repeated.
A common case for this reoccurrence is the fact that typical ...
0
votes
How to calculate the public key, compute point P and create signature using ECDSA?
The double and add method uses each number's binary representation to perform the computation. Taking a big-endian representation of a number, from left to right, if the n-th bit is 1, then you double ...
0
votes
Cryptographic digital signatures
the signature is nothing more than the combination of the public key and the private key
Here's an example of a digital signature process
Source
The signature process in Bitcoin is different but it ...
Top 50 recent answers are included
Related Tags
signature × 392transactions × 133
ecdsa × 65
raw-transaction × 34
segregated-witness × 30
public-key × 30
bitcoin-core × 29
script × 28
message-signing × 28
private-key × 24
hash × 24
multi-signature × 24
transaction-verification × 19
cryptography × 17
p2sh × 14
schnorr-signatures × 14
blockchain × 13
wallet × 12
address × 12
verification × 12
python × 11
security × 10
transaction-input × 9
transaction-malleability × 9
bitcoind × 8