Questions tagged [address-generation]

Collects technical details on the process of creating new addresses.

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16
votes
2answers
8k views

Can two private keys generate the same (public) Bitcoin address?

I know that private key is generated randomly by wallet. Is it possible that wallet generate the same address which is used in Bitcoin? In other words: Given two private keys ka ≠ kb, is it ...
1
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3answers
1k views

Is it possible generate three public key( address ) by only one private key?

I hear that each address has one private key. Is it possible generate three public key address by only one private key?
3
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1answer
4k views

What is the maximum of receive addresses the default wallet can handle?

I guess there is no limit. But on tests, what is the maximum before the bitcoind start to slow down in a specific machine?
2
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2answers
711 views

What kind of random numbers source does getnewaddress in Bitcoin Core API (bitcoind) uses?

Is it an internal PRNG? Is it fed from /dev/random or /dev/urandom? How secure is it? If I have a hardware (TRNG) plugged in feeding my /dev/random will this source of entropy get used by bitcoind?
2
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2answers
438 views

Generating addresses on the fly or pre-generate and store public key?

When running a service that needed a bitcoin address, would it be better to generate a new address to use at that moment and store the private key on your server, or would it be better to pre-generate ...
1
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2answers
118 views

How Do Addresses Function? [duplicate]

I understand that an address is needed to send Bitcoins to other people, but I do not understand why you are recommended to generate a new address for each transaction. Also, I have read that an ...
3
votes
2answers
447 views

Can multiple people create one multisignature address, while keeping their private keys private?

Is it possible for person A, person B, and person C to create a multiple signature address without one person needing to initially know all three addresses to create that public address in the first ...
5
votes
1answer
827 views

Coin address generation for all coins

We are developing UI for coin trading. We have a plan to use all the coins present in coinmarketcap. I am greatly confused how to generate coin address for all coins. I knew that from cryptsy.com, it ...
3
votes
1answer
441 views

Why can addresses be shorter than 34 bytes?

The wiki entry on Address says: Some Bitcoin addresses can be shorter than 34 characters (as few as 27 in theory) and still be valid. [...] These shorter addresses are valid simply because they ...
2
votes
3answers
505 views

If Bitcoin addresses are truely random, then why are some more difficult to generate than others?

In this post TierNolan explains why 'Bitpoin' is much easier to generate than 'bitpoin', and that mainly has to do with the position (first character). But I remember that certain characters (I ...
7
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3answers
11k views

More receive addresses with electrum

I cannot find any documentation or an option anywhere in the electrum client to put it into expert mode. I'm not even sure it can be done any longer, and it is important I raise the gap limit. It like ...
1
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2answers
382 views

How can I create 50,000+ bitcoin addresses in my wallet?

How can I create 50,000+ bitcoin addresses in my wallet? I will need more than 50,000+ addresses in my main wallet. I use Bitcoin Armory, Bitcoin-Qt and I'm just trying out Blockchain.info. Is it ...
2
votes
1answer
1k views

Need sample compressed and uncompressed Public / Private key pairs for BigInteger

I am testing a different version of BigInteger that has different endian formats and the native implementation likes to add or remove zeros from the final output. Can anyone provide some sample ...
6
votes
1answer
3k views

Is there a way to generate a brain wallet from the command line or console?

Is there complete solution for console to generate brain wallet? Something like: echo "sausage" | xxd -r -p | sha256sum | awk '{print $1}' | rmd160 -x | blablabla I'm read this article: https://en....
3
votes
3answers
313 views

How to deterministically generate large number of bitcoin addresses and monitor them

I want to generate a large number of bitcoin addresses to provide visitors for each transaction and I want to monitor payments to those addresses. How do I deterministically generate those large ...
2
votes
2answers
2k views

Does the 256-bit integer secret exponent define the X, Y pair?

I'm trying to understand better how bitcoin works and I'm stuck. I've read a blog showing how to construct the WIF from the 256-bit secret integer and up to that point, I think I follow. However I'm "...
3
votes
1answer
2k views

What to do if my BitCoin Address is only 33 digits?

I noticed that BitCoin addresses usually are equal to 34 digits and/or characters. I decided to get an extra address and was a bit hesitant to use it since it's 1 digit or character short, is this ...
2
votes
3answers
164 views

address that has never been online, will transactions in blockchain still balance?

I understand that addresses do not have to connect to the bitcoin network/blockchain in order to be valid addresses, but I am mainly wondering about what can be seen in the blockchain if that address ...
1
vote
2answers
727 views

How do you derive the public key from you random 256-bits integer?

Once I've flipped a fair coin 256 times and have the random 256 bits integer that I'm going to use as my private key, how is the public key derived? I've read: Given a private key, how do you get a ...
1
vote
1answer
380 views

strange weird address in transaction after send bitcoin bitcoin-qt [duplicate]

as an example, I have the wallet with address-A (with 10 BTC) If I send 1 BTC to someone (address-B) then in transaction I see address-A > 1 BTC > address-B address-A > 1 BTC > address-C ...
6
votes
2answers
2k views

Is it possible to use a PGP key as a bitcoin address?

Both bitcoin and encrypted emailing are based on public key cryptography. However, they use different implementations, so I assume that a public PGP key cannot be used as a bitcoin address directly. ...
0
votes
1answer
148 views

Sequence of events that can cause lost money in MultiBit

If you create a new address in MultiBit, then transferred money to the new address before the wallet was backed up, then your hard drive crashed, will you lose the money? The first Bitcoin client had ...
3
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4answers
4k views

How can I generate a bitcoin address?

Is there any way to generate bitcoin addresses other than the Blockchain API? (given the fact that it is not public)
1
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0answers
2k views

Sent bitcoins to my unencrypted wallet and encrypted the wallet before file synced, is there any way i can get them back?

Thanks in advance for any light you can shed on my problem.. I think I sent bitcoins from an online wallet to my offline wallet BitcoinQT(0.81) in august. The transaction has been confirmed, but not ...
5
votes
3answers
8k views

Generate address (for receiving) on GNU/Linux without Bitcoin client?

If I understand it correctly, I could generate a valid Bitcoin address (key pair) following this algorithm. With an address generated in such a way I would be able to receive Bitcoin without ever ...
26
votes
3answers
13k views

Is each Bitcoin address unique?

I am wondering whether each bitcoin address is unique. I would assume yes. Then, how is this enforced given the distributed address generation? As I understand it, each time an address is generated, a ...
29
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5answers
17k views

How are public & private keys in an address created?

I understand the high level concept I am more interested specific details. How is a private key generated. How exactly is public key generated, how is address generated from public key.

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