All Questions
Tagged with cryptography wallet
14 questions
3
votes
2
answers
391
views
How do exchanges generate deposit address per user for handling cryptocurrency?
In exchanges like Binance when a user wants to deposit bitcoins or other coins each user receives a unique public key? Do they have to generate pair key private/public key for each user in each coin? ...
- 208
2
votes
1
answer
84
views
Should I use a large random value for i in BIP 32 instead of sequential?
BIP32 doesn't have any guidance on how to choose the i value for child keys.
Is there any benefit to using a random value for i ?
Other than documenting and saving the value of I for various ...
- 12.8k
2
votes
1
answer
3k
views
Bitcoin Core Old Wallet.dat Vulnerability
Own a wallet.dat file from 2010-2011. Yesterday I saw there was a vulnerability which is makes attacking somewhat easier if your wallet is generated by old client and I'm pretty sure my wallet is ...
- 21
2
votes
1
answer
409
views
How can I use message signing to prove that I have private keys for many different accounts?
I want to prove the total sum of BTC I have access to. Therefore I think if I use message signing to assert "owned by makerofthings7" in each address, then anyone can compute the total coins in my ...
- 12.8k
1
vote
1
answer
185
views
BIP 32 CKDpriv not working in my python implementation
I have been working on implementing BIP 32 in Python. This is my code for deriving normal (not hardened) child keys as part of an HD_Key class:
def CKDpriv(self, index):
key = bytes.fromhex(self.c)...
- 47
1
vote
1
answer
119
views
How does a Wallet Create a Transaction when a Public Address Is Provided?
Given a public Bitcoin wallet address 1BdYVvwoxTWMGqJS2Pg6NkVD7RnENVjSac; is pasted into a wallet to send Bitcoins to. How does the wallet create an output to send coins to the public key associated ...
- 13
1
vote
0
answers
314
views
How are the prefixes for EXT_PUBLIC_KEY and EXT_PRIVATE_KEY derived?
I want to know how the prefixes for EXT_PUBLIC_KEY and EXT_PRIVATE_KEY are derived. For example in bitcoin you have:
base58Prefixes[PUBKEY_ADDRESS] = std::vector<unsigned char>(1,0);
...
- 11
0
votes
1
answer
41
views
Is it Possible to Create Signature Chains for Private Keys to Sign Transactions with? Similar to how Certificate Authorities Use Intermediate Certs?
I am wondering if it is possible to implement this flow with bitcoin private keys, similar to how certificate authorities have a root cert and an intermediate cert used to sign csr's. It would be ...
- 13
0
votes
1
answer
93
views
If you lose your Bitcoin wallet Password, can you simply transfer private key to another bitcoin wallet provider?
If you lose your Bitcoin wallet password, can you simply transfer private key to another bitcoin wallet provider? I mean if I lost the password to the website where the wallet is stored, can I simply ...
- 113
0
votes
1
answer
84
views
Shared crypto hardware wallet
We were all newbs at the beginning, and did things the wrong way.
My partner and I bought crypto separately with our own exchange accounts, but transferred our hodl coins to a single shared hardward ...
0
votes
1
answer
608
views
Create wallets on website PHP
I am trying to create a website that allows the deposit of cryptocurrencies (BTC / ETH / LTC) in the account, consequently I need to create a wallet at the personal registration for each of these 3 ...
- 103
0
votes
1
answer
36
views
Learning to trade iOS user friendly crypto wallet safety when stored in and transfer for trading or use to purchase or get cashed
iPhone users best crypto wallet in bitcoin currency trading and transfer for easy access to use and keep safe deposit and profits as a new and first time trading experience to the trading crypto ...
0
votes
1
answer
72
views
How is wallet balance from unspent transactions in cryptography terms?
There is already a good almost complete answer here (but missing the cryptography explanation):
How is a wallet's balance computed?
Is a bitcoin wallets balance calculated on the client computer ...
0
votes
1
answer
268
views
Teslacoin sync error - No Suitable Inputs Found
Not sure this is the right forum for this, but I thought I'd ask out of desperation.
I have the following error when trying to sync my teslacoin wallet.
I managed to sunc about 6 weeks ago, however ...
- 131