How Does the Security of a Cryptographic Hash Function Relate to the Concept of “Computational Difficulty”?

The security of a cryptographic hash function relies on its computational difficulty, specifically the infeasibility of reversing the function (pre-image resistance) or finding collisions. This means that to break the security, one would need to expend an astronomically large amount of computational power, making it practically impossible with current technology.

This computational difficulty is the foundation of blockchain security and immutability.