Just silly question 
is it possible to know this public key is from this range? like 110 or 115?
is there any way to identify?
is it possible to know this public key is from this range? like 110 or 115?
is there any way to identify?
No, otherwise you would be able to find the upper bits of every private key in existence.
Hi. Can you explain how you can learn the upper bits by knowing the range?
Hi. I once asked the question of whether it is possible to calculate mathematically in which range the key is.
To which I received a response from NotATether.
If you know the range you can calculate the upper bits of the key.
The question logically asks for answers.
If we know, and we know in what range the key lies (like puzzle 120).
Then why not calculate the upper bits?
What is the calculation algorithm?
Thanks.
I think it's impossible to calculate the upper bits of the key, even if you know that this private key lies in the 2^120 bits-range.
The only way to get the key, is to use kangaroo, or BSGS, but the chances that you find the key is extremely low.
Cheers!