Can anyone please be so kind and explain to me what it means that some public keys from this puzzle (like task 130 but not task 66 for example) have been found which makes kangaroo and keyhunt with bsgs mode possible?
I thought we know public addresses as they hold the reward and the task is to find the suitable public key from a reduced key range. So what does it mean that the public key for task 130 is known and is 03633cbe3ec02b9401c5effa144c5b4d22f87940259634858fc7e59b1c09937852? I literally don't understand this.
Thank you
I thought we know public addresses as they hold the reward and the task is to find the suitable public key from a reduced key range. So what does it mean that the public key for task 130 is known and is 03633cbe3ec02b9401c5effa144c5b4d22f87940259634858fc7e59b1c09937852? I literally don't understand this.
Thank you
There are private keys , public keys and addresses. These are three different things.
You can use BSGS or Kangaroo modes only on public keys but not on addresses.
The known public keys in this whole challenge were intentionally released by it's creator.
If you see an outgoing transactions in given address history you can easily check it's public key and try the BSGS or Kangaroo modes.
When you have just address without any outgoing transactions your only method is to blindly guessing private keys in hope you will find one which corresponds to address.
Currently finding 66bit privkey without knows public key can be considered as hard as finding 130bit privkey with public key known.
