Throughout the evolution of human civilization, the pursuit of computational power has never ceased. From $\underline{mechanical ~computation}$ to $\underline{electronic ~computation}$, we now stand at the dawn of a new era — $\mathbf{on ~the ~verge ~of ~quantum ~computing. }$
The core breakthrough of quantum computing does not lie in macro-level advancements such as “faster” transistors or “stronger” chips, but rather in a paradigm shift from macro to micro: it no longer relies on the classical binary of 0 and 1 but leverages the peculiar properties of quantum superposition and entanglement at the particle level to build $\underline{an ~entirely ~new ~computational ~logic}$. This logic cannot be simulated by traditional electronic computers, much like nuclear weapons cannot be replicated with chemical explosives—their energies are simply not on the same scale.
In this age of exponentially increasing computational power, modern cryptography stands as the first field to be fundamentally challenged. Encryption algorithms that are rock-solid on classical computers—such as RSA and ECC—become vulnerable in the face of quantum algorithms like Shor’s algorithm.
Just as electronic computers once marked the end of the mechanical cipher era, quantum computing is now poised to reshape the foundations of modern cryptography. It brings not only challenges, but also an opportunity to redefine what “security” truly means.