How single usage of bitcoin address is resistant to quantum computing _and_ replace-by-fee?

How single usage of bitcoin address is resistant to quantum computing _and_ replace-by-fee?

It is often said that if a bitcoin user uses addresses only once, then quantum computer cannot compromise their security since the public key is revealed only when the money are actually spent.

But how come an attacker could not detect a transaction, reverse the public key and forge a transaction from the same address with a higher fee before the first transaction is mined?

https://ift.tt/2tssU0A

Comments

Post a Comment

Popular posts from this blog

sendrawtransaction and txn-mempool-conflict

sendrawtransaction and txn-mempool-conflict When i sendrawtransaction to bitcoind, i get error (exceptions) 18: txn-mempool-conflict (use Bitcoin JSON-RPC denpamusic/php-bitcoinrpc ) But the transaction is sent to the network and is subsequently confirmed. Example one decoded transaction : https://jsfiddle.net/rn58a4j6/ then i send this transaction: 94ec12fc463230b4285a29b047608627c05572a4c6eabe6688a201ce49ae72f7 https://ift.tt/2MY2KP0
Read more

couldn't connect to server: EOF reached (code 1)

couldn't connect to server: EOF reached (code 1) I'm running a full node on my raspberry pi3. I try to do a simple command such as bitcoin-cli getblockchaininfo but I always get this error: error: couldn't connect to server: EOF reached (code 1) (make sure server is running and you are connecting to the correct RPC port) My bitcoin.conf file looks like this: Bitcoind options server=1 daemon=1 reindex-chainstate=1 reindex=1 txindex=1 disablewallet=1 listenonion=0 Connection settings rpcuser= * rpcpassword=* rpcport=8332 rpcallowip=127.0.0.1 rpcthreads=10 I also tried to get a command with "bitcoin-cli -rpcuser: * - rpcpassword=* -rpcportt8332 getblockchaininfo". But this also didn't work. Does someone has some advice or experience with this error? https://ift.tt/2D82TLW
Read more