Quote from: Sandra_hakeem on Today at 01:48:29 PM

Mini privkeys
I wanted to understand how it's calculated and I was told that when the there's a product,if the very first byte results to `00', it's well calculated.
Question:
+Since the SHA256 hash is calculated just by the selection process of random numbers, which forms a polynomial and prolly an interger, what's the probability of getting an `00' just by choosing at random?

What a strange coincidence, I just bumped/updated a 3 year old post of mine with information about mini private keys: https://bitcointalk.org/index.php?topic=4768828.msg60704068#msg60704068

The search space even for the less secure mini private key is still massive. Any attempts at cracking would be an academic curiosity rather than a way to make (ie: steal) funds.

As for cracking a 256 bit private key directly, fuggedaboudit.