Explain the Concept of ‘One-Way Function’ in Cryptography.

A one-way function is a mathematical function that is easy to compute in one direction but extremely difficult or computationally infeasible to reverse. In ECDSA, the derivation of the public key from the private key is a one-way function.

This means that while anyone can verify the public key, finding the private key from the public key is practically impossible with current technology. This asymmetry is the cornerstone of public-key cryptography's security.

What Is the Estimated Computational Power Needed to Reverse a 256-Bit ECDSA Key?
How Does Elliptic Curve Cryptography Secure Private Keys?
What Is the Mathematical Process Used to Derive a Public Key from a Private Key?
Why Is This One-Way Function Computationally Infeasible to Reverse?
Can the Private Key Be Derived from the Public Key, and Why Is This Crucial?
How Does the Concept of a “Trapdoor Function” Relate to Cryptographic Security?
What Are the Key Differences between Symmetric and Asymmetric Cryptography in the Context of Securing Financial Transactions?
Why Is It Computationally Infeasible to Derive the Private Key from the Public Key?