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Results tagged with signature
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user 24925
A digital signature proves that the owner of a private key produced or endorsed a given message. These are used in transactions to prove that an output can be spent in a transaction.
1
vote
Accepted
Signing transaction offline - manual way vs. Electrum
The version number is sort of arbitrary and up to the client, so long as the number chosen is valid.
The nLockTime is usually set to the current block height in modern wallets, this is a simple prot …
- 15.5k
1
vote
Accepted
Destination address(es) when redeeming an HTLC
The inputs of a transaction have absolutely no ability to effect the outputs in any situation. They can only define who can spend, not the conditions for how they go about spending it.
- 15.5k
9
votes
Accepted
Why can't bitcoin miners modify transaction outputs?
In almost all cases this is SIGHASH_ALL, which means that the signature covers the entirety of the transaction outputs and inputs, less other signatures. … The last byte of the signature is the SIGHASH flag, which in this case is 0x01 or SIGHASH_ALL. …
- 15.5k
5
votes
Accepted
The complement of s (when s < curve order / 2)
In ECDSA s can be on either side of the curve and the signature will still be valid. …
- 15.5k