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Demolition of internal keys from Bitcoin events
Bitcoin’s private keys are designed to be extremely safe and resistant to reverse technology. One of the challenges to understand how these keys are created and used is the dismantling of the internal key from the repaired Pubkey and BIP341-TWEAK.
In this article, we will look at what happens when the user adjusts his or her public key using the tweakubkey command with BIP341 and try to break the internal key. We also discuss why this process seems impossible without more context.
Adjusting the public key
When a user wants to adjust the private key they use the following commands:
`Bash
$ Bitcoin-Tproot -TweakpubKey
`
This changes the private key and produces a new repaired Pubkey.
The BIP341command is used to determine the new public key adjustment. The event tag determines how the user's private key should be edited to produce a repaired public key.
Demolition of internal key
We need to understand how Bitcoin creates these keys to pick up the internal key to pick up the internal key.
The Bitcoin event consists of a series of input starts (Iov), which is bundled together in one output. Each Iov contains the sender's public key, the recipient's public key and other relevant information. The internal key is created by changing the user's private key with a custom Pubkey program.
When the user wants to edit the private key with the "Tweakpubkey" command, Bitcoin creates a new private key that is compatible with the BIP341 printed adaptive tag. This new private key is then used to sign and check the events.
Problem: Disassembly of internal key
Let's assume now that we have a repair of the Pubkey and BIP341-TWEAK tag, which allows us to dismantle the internal key:
Bash
$ Bitcoin-Taproot -TweakpubKey 0x00A9D5E8C3F4B1BCDEF000000000001
`
The --tweakpubkey option determines the adjustment tag. 0x00A9d5e8c3f4b1abcdef000000000001 is a sample adaptive tag.
To pick up the internal key, we can use the “BIP341” command to create a new private key that is compatible with this repaired Pubkey:
`Bash
$ Bitcoin-Taproot -Tweakpubkey 0x00A9D5E8C3F4B1BCDEF00000000000001
`
This produces a new private key that is compatible with the repaired pubkey.
Now we can use this private key to sign and check the events. The internal key is now available through the “extracted and ja-key”.
Why unloading an internal key is impossible without more context
In summary, the dismantling of the internal key from repaired Pubkey and BIP341-tweaks requires more context than just adjusting the public key with the “tweakubkeyapplication. To pick up the internal key we have:
- Create a new private key that is compatible with the repaired Pubkey.
- Use theBIP341
command to create a new private key that corresponds to the modified Pubkey adjustment tag.
Without knowing the exact adjustment identifier or private key used at the original event, it is impossible to use the internal key only using the Tweaked Pubkey and BIP341-TWEAK tags.
conclusion
Adjusting the public key with thetweakubkey` app with the BIP341 can customize the user’s private key, but disassembling the internal key from the resulting custom -made pubs is not straightforward. Without more context, such as the original event or a private key used in a Tweaaked pub, it seems impossible to get an internal key.
However, if you have access to the original event and a repaired Pubkey device with a BIP341-TWEAK tag, you may be able to restore the internal key with reverse design.
