Explain the Concept of 'One-Way Function' in Cryptography ▴ Learn

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 Does “Computationally Infeasible” Mean in the Context of Cryptography?

How Does the Concept of a “Trapdoor Function” Relate to Cryptographic Security?

Why Is the Public Key Derived from the Private Key, and Not Vice Versa?

What Is the “One-Way” Property of ECC?