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Questions tagged [data-security]

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5
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1answer
109 views

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

From BOLT 08 we can see that every message is sent in the following way: 2 byte: length 16 byte: MAC [length] byte: Encrypted message 16 byte: MAC In reality these messages will be send over TCP/...
1
vote
1answer
48 views

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

My question is this: How exactly does the stratum protocol distribute "work" to miners? More specifically, since mining can be compared (in many regards) to "brute forcing" a cryptographic hash (i.e. ...
2
votes
1answer
344 views

How to verify the Bitcoin core software?

I just installed Bitcoin core (v0.15.1) for the first time. I've read that it's best to verify the software after downloading, but I don't see the links that are referred to in the instructions/videos....
0
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1answer
131 views

Is a digital wallet created by blockchain?

Currently reading an article here, I came across the following sentence which really confused me: Through the digital "wallet" a blockchain creates around not only virtual money but the pieces of ...
0
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1answer
114 views

Blockchain to store private data and ownership

As far as I know Bitcoin Blockchain can be accessed via API to enter data. In this case I want to generate a hash/ Checksum MD5, that cannot be understood by anyone that doesn't have the private key, ...
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0answers
96 views

BItcoinjs - safest way to manage wallet on a potentially untrusted device

As per the title, what would be the safest way to run a Bitcoin wallet on a potentially untrusted device, such as a mobile phone? The question assumes the usage of bitcoinjs-lib (which allows, among ...
0
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1answer
152 views

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

I’d like to analyse bitcoin blockchain in order to detect addresses used for fraud, like money laundering. Since I cannot get any addresses info that was really used for fraud, I need to analyse which ...
3
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2answers
1k views

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

I suppose they're kept encrypted as not to do so would be the equivalent as saving plaintext passwords. I heard most of them keep a percentage of the funds in cold storage, but then isn't it ...
1
vote
1answer
151 views

Bitcoin Core - server uptime, privacy and security questions

For now, bitcoin core has to run on my main computer. Once the block chain is downloaded, I see instructions that I can leave it running only 6 hours a day. OK. I can do that at night. I assume I also ...
0
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2answers
428 views

How to apply blockchaining to data?

I would like to apply blockchaining on unstructured data (any kind of data). I have seen BlockSign use similar concept to sign a document by storing a hash of the document in OP_RETURN block of ...
0
votes
1answer
50 views

Exchanges whose websites use EV SSL certs?

What are all the Bitcoin exchanges whose websites have an Extended Validation (EV) SSL cert? EV certs appear green in Firefox. This is what Circle's looks like: The only exchanges that have EV certs ...
2
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1answer
66 views

Does AirBitz have federated servers?

I have been looking for a service that uses federated servers. Why? Because I am paranoid. And because companies pay me to be imaginative in my foe analogies.
3
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2answers
354 views

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

The Trezor testimonials include that TREZOR ... cannot be infected by malware What is it about a Trezor that means it cannot be infected?
0
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1answer
69 views

Bitcoin security/vulnerability on computer backed up by cloud?

I understand that BTC are stored as file in wallet.dat on hard/external drives. Is there an added layer of security to Bitcoin storage when the computer is backed up by a trusted cloud storage ...
3
votes
1answer
308 views

Is a multisignature transaction propagated through the Network before it accumulates enough signatures?

An N-of-M multisignature Transaction requires to be signed by N addresses to be a valid transaction. I would like to know whether the Bitcoin Protocol would transmit a Transaction with less than N ...
0
votes
4answers
808 views

How do I make a Bitcoin “memory wallet” (or paper wallet without paper)?

I'd like to see a video tutorial that explains in detail how to make a paper wallet without paper, AKA, a "memory wallet" -- thx.
4
votes
2answers
1k views

How do I reconfigure a Mt. Gox Yubikey?

After following the instructions here, which suggested I use ykpers or the gui version, I discovered the Mt. Gox Yubikey is protected by a "configuration protection access code." From the manual: ...
5
votes
1answer
684 views

What precautions should be taken to protect a Ripple wallet?

What if a Ripple wallet gets hacked? What are the suggested precautions for the average user?
7
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1answer
1k views

What are the security considerations for hosting *your own* Electrum server?

Lets say I wanted to use an electrum client but I'm so paranoid and also can't or won't read and understand python code so that I only trust my own server. What security considerations should I have ...
2
votes
1answer
432 views

Should a JSON-RPC user be required to use a password when backing up the wallet?

I was surprised I was able to back up my wallet over JSON RPC without requiring the wallet password (or even without a secondary backup-only password) I'm concerned that this could create a DOS ...
7
votes
1answer
302 views

What could be the impact of the distribution of “tainted” Bitcoinica coins?

The hacker was distributing them in IRC recently, and sent some to the Bitcoin Faucet. Is this a reliable method for evading the "Bitcoin Police"? Here's a forum thread discussing the distribution ...
2
votes
1answer
341 views

How do mining pools protect their wallets?

Since Slush took quite a hit due to the hacked Linode servers, I'm wondering how do mining pools protect their wallets from theft of file and theft of private keys in those files?
2
votes
1answer
254 views

What files one should backup when running a pool or other Bitcoin service?

There was a big problem with Bitomat at some point where that Bitcoin exchange lost its data due to some data being lost. To prevent such problems from occurring, what files should one backup? Which ...
5
votes
2answers
2k views

How much anonymity do mining pools provide?

How much anonymity does an average mining pool provide to the user (securing your email, other personal information)? What is the best pool to use if you want to remain anonymous, and which is the ...