10 votes
Accepted

Why is the length of the transport messages on the lightning network encrypted?

TCP and other stream based protocols do not have a 1-to-1 correlation of application level messages and IP packets. If you call send() 3 times, it might result in sending a single IP packet over the ...
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  • 3,239
5 votes
Accepted

Do pools distribute "jobs" to miners based on "failed" solutions which have already been submitted?

I've read simplistic descriptions of mining as simply incrementing the nonce until a solution is found, but I've also read much more detailed explanations which would imply much more is involved. Even ...
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  • 62.5k
5 votes
Accepted

Does AirBitz have federated servers?

We don't have federated servers right now but we do utilize open source, publicly accessible libbitcoin nodes which both Airbitz and 3rd parties host. This is a fully compatible replacement to ...
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4 votes

What is it about a Trezor that means it can't be infected by malware?

Trezor is a relatively simple, specialized hardware device. It does not run any OS, just a small program specifically developed for signing Bitcoin transactions and managing the keys. Thus, the attack ...
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  • 1,394
4 votes

Are Satoshi's satoshis less secure than they should be?

Most early transactions including rewards for early blocks go to P2PK outputs and we don't know who owns them, Satoshi or others. In these output scripts (unlike the common ones today) we use the ...
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4 votes

Who store seed phrases data

who store the private key adresses of these seed phrases, The private-keys are generated from the seed-phrase by a mathematical function. There is no need to store a list of seed-phrases and ...
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3 votes
Accepted

Who store seed phrases data

The private keys are not stored, they are deterministically generated from the seed data. The seed encodes up to 256 bits of random entropy in a human readable form with a checksum attached to it. ...
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  • 3,239
3 votes
Accepted

What is it about a Trezor that means it can't be infected by malware?

You simply can't add, insert or install software or any executable stuff into a Trezor. Due to the way the Trezor is set up, it runs fully autonomically. The only thing that goes into the Trezor is ...
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3 votes
Accepted

Which data should be used in order to detect addresses to be used for fraud?

Fraud and money laundering are two different things. Fraud, or accepting or spending money under false pretenses, would be very difficult to detect on the blockchain because it requires outside ...
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  • 8,734
2 votes

How do on-line wallet or bitcoin exchanges usually secure their private keys?

To support timely settlement services outside an exchange's platform, around 1/12 to 1/16 value of an exchange's cryptocurrency value will probably need to be placed in hot storage. The rest will be ...
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  • 2,927
2 votes

How to verify the Bitcoin core software?

The verification you are referring to applies to the installer file you downloaded. The verification instructions for Windows can be found here. The instructions for other operating systems are on the ...
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2 votes

Is it possible to realize MitM attack between bitcoin full node and listener of this node?

No, just changing the output value would invalidate the transaction's signatures, which the application can easily verify. But since the application is not a fully validating node, what the attacker ...
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1 vote

As the Bitcoin price skyrockets, how to avoid getting malware through freeware/FOSS software's updates?

Unfortunately, good security isn't always easy. In this case, your worry is not unjustified, and it is why most security-conscious users will recommend never having privkeys touch an online device. ...
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  • 17.4k
1 vote

How to verify the Bitcoin core software?

If you get here like I did, trying to remember where the signatures of the various releases are stored/attested-to, it's at https://github.com/bitcoin-core/gitian.sigs There, you'll find the manifests ...
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  • 113
1 vote
Accepted

Is a digital wallet created by blockchain?

The writer of that sentence did a poor job explaining things. A blockchain (the data structure) does not create a wallet. It is the data that a wallet uses to determine the state of the money it ...
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  • 8,734
1 vote

Bitcoin Core - server uptime, privacy and security questions

security... TOR It is important to note that TOR does not provide added security. In fact, it could decrease security because you are funneling your traffic through exit nodes which could try to ...
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1 vote

How to apply blockchaining to data?

Chainpoint is a standard for maximizing the scalability of recording data in the blockchain and generating blockchain receipts. Each receipt contains all the information needed to verify the data ...
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1 vote
Accepted

Exchanges whose websites use EV SSL certs?

I know one personally in Israel, https://bit2c.co.il it's Israeli bitcoin exchange.
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