Encryption is the process of encoding information into a ciphertext that only authorized parties can decode. Encryption isn't used in the Bitcoin protocol itself, however it can be used e.g. for encrypting wallet backups or peer-to-peer communications.
Questions tagged [encryption]
177 questions
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If I lost my public keys, could I recover them from the private key?
Possible Duplicate:
How are public & private keys in an address created?
If I lost my public key, but still have the private key, is it possible to recreate the public keys.
How many public keys can be made from one private key?
Is it a…

shoeless joe
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How should I encrypt a bip39 mnemonic with a password?
With no server and only in the browser I'm generating an a bip39 key and giving the user the mnemonic to store some place safe for restoring, I also want the user to be able to login with a password.
1) Could I encrypt the mnemonic with a…

Will-In-China
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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 if the recipient possesses certain attributes that…

SingularityFuture
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Where can I go to read up on encryption methods used in Bitcoin?
Where can I go to read up on encryption methods used in Bitcoin? I am particularly interested in the idea that I can use a private key to sign something and it proves to the world I have the private key but yet does not reveal the actual key. This…

shoeless joe
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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": "Public key of the address",
"salt": …

user14755
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How long would it take to break a 32 bit key / encryption
I was actually wondering...
How long would it take to crack/brute force a 32 bit key/encryption and a 16 bit key/encryptions respectively?

Dave Kent
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How can you sign a transaction without that signature being forged in the future?
So thinking here about an offline transaction. Both myself and the receiver sign it, and then at a later time that transaction is broadcast to the network in the block.
What is stopping me from taking your "signature" and signing another…

Canaan Linder
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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 wallet.dat and loaded that, when it came up it…

Fran
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Generating Public & Private key pairs for cracking Bitcoin
Would one of the better methods to crack Bitcoin be to start creating a massive database of key pairs? It would then be possible to reference the Private key required off the public key from the DB.

John
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severity of bitcoin vulnerability to AES crack
In the event that AES is cracked, what are the implications for the consensus layer of bitcoin? What are the implications for user's bitcoin wallets? On average, how many bitcoin would be available to steal?
After either a large-scale theft or…

hedgedandlevered
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Bitcoin core wallet backup corrupted by an external tool
Do you know if my wallet.dat which has become wallet.axx due to incorrect handling of an external program
(I do not know the name of the program, but it is used to encrypt Windows files)
has the possibility of reverting to initial format ".dat"
by…

Dydy94
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