Quantum Computer
Definition
A quantum computer is a computing device that exploits quantum mechanical phenomena—superposition and entanglement—to perform calculations. For certain problems, quantum computers provide exponential speedups over classical computers. Cryptographically relevant quantum computers (CRQCs) threaten current public-key cryptography.
Technical Explanation
Quantum computers use qubits that exist in superposition of 0 and 1 simultaneously, enabling parallel exploration of solution spaces. Entanglement correlates qubit states for computation. Quantum algorithms like Shor's and Grover's exploit these properties for specific speedups.
Current quantum computers have 50-1000+ noisy qubits, insufficient for breaking cryptography. Cryptographically relevant quantum computers need thousands of stable, error-corrected logical qubits. Major efforts by IBM, Google, governments, and others accelerate development, with breakthroughs potentially arriving 2030-2040.
SynX Relevance
SynX is designed for the quantum computing era. Regardless of when CRQCs arrive, SynX transactions are protected. Kyber-768 and SPHINCS+ resist quantum attacks, making SynX secure against current classical computers and future quantum computers alike.
Frequently Asked Questions
- Do quantum computers exist today?
- Yes, but not at the scale needed for cryptographic attacks. Current devices are useful for research, not hacking.
- Who is building quantum computers?
- IBM, Google, Microsoft, Amazon, Intel, IonQ, plus Chinese and European government programs.
- Can I protect myself before they exist?
- Yes—using post-quantum cryptography now prevents harvest-now-decrypt-later attacks.
Ready for the quantum era. Protect yourself with SynX today