To create a globally visible, unpredictable, difficult-to-manipulate, verifiable random number, hash the concatenated closing prices of a large market capitalization stock index, e.g., S&P 500.
This is better than hashing the average which can take far fewer values, so few as to be easily brute forced.
I think the greater degree of freedom makes life more difficult for the attacker, needing to manipulate more stocks, but I'm not completely sure.
Previously about why the closing price is better than the opening price.
No comments :
Post a Comment