Questions tagged [encryption]
For questions relating to encryption operations and algorithms as they apply to crypto-currencies specifically.
24
questions with no upvoted or accepted answers
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0answers
99 views
Java bitcoinj: semantics of 'decompress' on encrypted key
Calling the decompress method on an encrypted ECKey object yields an ECKey object which has no private key (only public). I personally would have expected to get the same encrypted key in uncompressed ...
2
votes
0answers
164 views
Safety differences between full wallet encryption and only encrypting the private keys?
I'm a newcomer in the Bitcoin world and I wanted to ask the following questions regarding wallet security: What are the safety differences between fully encrypting the wallet.dat file and only ...
2
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0answers
69 views
Does Amit Sahai's indistinguishability obfuscator enable Autonomous Virtual Corporations or “Agents”?
Given that an "Agent" is described as
Agents are autonomous programs that maintain their own wallet, which they use to buy server time. Money is obtained by the agent selling services. If demand ...
2
votes
0answers
257 views
Is there a way to import a private key already protected with the passphrase?
Let's say I have a hot wallet that has passphrase encryption enabled. Then let's say a large withdrawal needs to occur but the hot wallet has insufficient funds and a transfer from cold storage is ...
1
vote
2answers
242 views
Should I be using the “encrypt wallet” feature in Bitcoin Core?
All my wallet.dats have no password. However, the internal hard disk where the "live" one is located is encrypted, and so are the offline storage devices where I have my "cold" ...
1
vote
2answers
2k views
Private key to WIF process
I have a private key for a storage bitcoin wallet (there's not much in there I'm just testing methods) but it is in private key form and to import it to my main wallet I need to convert it into WIF.
...
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0answers
649 views
Bitcoin Private Key Decryption
At present, I have dumped my wallet and have all private key, address information. I am now wanting to understand the decryption process for the private keys within the wallet. I have completed the ...
1
vote
2answers
163 views
Encrypted message with nLockTime
I know you can delay a transaction's accepted date by using nLockTime. I'm still looking for the simplest way to generate a transaction with nLockTime, but that's another topic.
I'm wondering if ...
1
vote
0answers
94 views
Is the Password stored in RAM in clear text after decrypting the MultiBit HD wallet?
After decrypting your wallet in MultiBit HD, is the clear text version of password stored in the RAM?
1
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0answers
79 views
Can't start bitcoind after wallet encryption (Bitcoin Core)
pretty new to the Bitcoin world!
I downloaded Bitcoin Core and got everything up and running. I then attempted to encrypt my wallet, and after successful encryption can no longer start bitcoind. ...
1
vote
0answers
89 views
Is there any implementation of attribute-based encryption on top of Bitcoin?
I've found a few papers detailing how you could do it in theory, but haven't seen anything in practice. Like a system for distributing bitcoin to private keys, where those keys are only distributed ...
1
vote
0answers
177 views
How MultiBit stores password
I'm curious to understand how MultiBit stores my password.
The fact is: I can restore the password by using the 12 words. From this answer it seems tha the AES key to encrypt the password is derived ...
1
vote
0answers
200 views
bitcoin-qt restored wallet.dat all synced closes after correct passphrase “assertion error crypt” HELP
Installed bitcoin-qt and replaced new wallet.dat with old wallet.dat backup
Opened bitcoin-qt and let it sync and all blocks synced and wallet has correct funds and past transactions.
I Want to ...
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0answers
99 views
Implementing Secret Sharing with an Encrypted Bitcoin Wallet
How would I implement Shamir's Secret Sharing Scheme with an encrypted Bitcoin wallet?
1
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0answers
1k views
How do I get my encrypted private key converted?
"addr": "typicalbitcoinaddress",
"compressed": true,
"encrypted_privkey": "this is my private key that is 96 characters long",
"label": "Wallet",
"pubkey": ...
0
votes
1answer
144 views
BTC Treasure hunt
Alright, I’m new to Bitcoin/Crypto, and this might be a long story but worth it.
My life long friend had a $50 Visa gift card back in 2009-2011. His friends were over the house one day and mentioned ...
0
votes
0answers
150 views
How to create a keystore file. And which key to store in it?
I created an BTC+ETH Wallet. I want to store an encrypted key so the next time I run the wallet, it will load with the data from keystore.
I'm working with the node crypto module. And as it is right ...
0
votes
0answers
13 views
Bitcoin elliptic curve encryption with forward secrecy?
I've been looking for a way to do encryption using Bitcoin private keys. I've looked at all implementations of ECIES encryption, and none of them seems to provide forward secrecy--basically there is ...
0
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0answers
54 views
How may bitcoins hash algorithm be secured in the future from quantum computing brute forcing?
Other threads already answer very clearly that quantum comps could easily "break" /attack bitcoins chain.
Now: Are there any ideas among the bitcoin devs circulating out there, how to save bitcoin ...
0
votes
1answer
86 views
can I Re- encryp my wallet with a wallet.dat file from before encryption
My computer crashed and I lost access to my bitcoin wallet.. before that happened I knew I had lost my passphrase so when trying to recover my wallet with my wallet.dat I looked for a very early dated ...
0
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0answers
48 views
At what market cap will bitcoin be worth “cracking”?
This is the doomsday scenario: bitcoin's market cap goes into the trillions of dollars and the cost/benefit ratio of cracking the encryption algorithm tips so that it becomes attractive to throw ...
0
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0answers
321 views
How can an encrypted wallet spend coins without asking for decryption password?
It is possible for some encrypted wallet to spend coins (e.g. this one) without requesting a decryption password or any other form a authentication. Of course, a password is requested when first ...
0
votes
0answers
348 views
How can I access my private keys? Will the key get lock further if I enter the incorrect password too many times?
I exported my private keys and Multibit unencrypted but when I try to import the key files I am being asked for a password... copying the the key from text edit and pasting it into blockchain results ...
0
votes
3answers
560 views
Practical application of Electrum's Encrypt/Decrypt message feature?
It's pretty clear how signing a message with a Bitcoin key can be useful in proving ownership of funds.
However, it's far from clear how encrypting a message with a Bitcoin key can do anything useful....
