Under the threat of quantum computing, how does Sui Blockchain lay out security lines in advance?

Breakthroughs in quantum computing (such as Google’s 105-qubit computer) are threatening traditional encryption systems. Shor’s algorithm can quickly crack RSA and elliptic curve cryptography (ECC), while Grover’s algorithm weakens the security of hash functions. The National Institute of Standards and Technology (NIST) has clearly required that classical encryption be abandoned in 2030 and that quantum-resistant (PQ) standards be fully adopted in 2035. Attackers may steal sensitive data through the “store first, crack later” strategy, so blockchain platforms need to take immediate action to build a quantum security line of defense.

Quantum computers are hailed as “future technology,” but their threat to blockchain might be closer than we think. Traditional blockchain relies on encryption techniques like RSA and elliptic curve cryptography (ECC), which act like intricate locks protecting user assets and data. However, quantum computing’s “superpowered calculations” could become a “master key,” easily cracking these locks.

​​For example​​: A traditional computer might take millennia to crack a password, while a quantum computer could do it in minutes. Google has already developed a 105-qubit quantum computer. Though still far from posing a real threat, the “security race” has already begun.

​​Sui’s “Quantum-Resistant Weapons”: What Are They?​​

Sui blockchain developers have long recognized this challenge and designed a flexible encryption system that can upgrade to quantum-resistant technology as seamlessly as “changing a lock core.” Key strategies include:

1. ​​New Signature Algorithms​​: Replacing traditional encryption with mathematical puzzles

   • Quantum computers excel at solving problems based on multiplication/division (like RSA), but struggle with complex mathematical puzzles (e.g., finding the shortest path in high-dimensional lattices). Sui plans to adopt NIST-recommended quantum-resistant algorithms like Dilithium, which rely on “lattice-based cryptography”—a problem even quantum computers find formidable.

2. ​​Reinforced Hash Functions​​: Doubling the “chain links”

   • Hash functions in blockchain act like chains linking transaction records. Quantum computers could weaken their security, so Sui will increase hash output length from 256 bits to 384 bits—effectively doubling the thickness of each chain link to resist attacks.

3. ​​Layered Defense Strategy​​: Prioritizing high-value data

   • For highly sensitive data like wallet private keys, Sui will prioritize quantum-resistant encryption. Short-term public data (e.g., news content) can follow a slower upgrade path to balance efficiency and security.

​​Should Ordinary Users Worry?​​

No panic needed now—but developers must act!

• ​​User Perspective​​: Current quantum computers are not yet advanced enough to threaten everyday users’ assets. However, blockchain developers must start upgrading systems now, as attackers may already be hoarding encrypted data for future decryption.
• ​​Developer Actions​​:
  • ​​Key Backups​​: Generate quantum-resistant key backups for existing accounts and phase out old keys gradually.
  • ​​Compatibility Design​​: Ensure new systems support both traditional and quantum-resistant encryption to avoid locking users out.

​​Sui’s Unique Edge: Why It Outpaces Quantum Threats​​

1. ​​Modular Design​​: Sui’s encryption system works like “LEGO blocks,” allowing rapid algorithm swaps without rebuilding the entire chain.
2. ​​Ecosystem Collaboration​​: Align with standards bodies like NIST to ensure compliance with global norms.
3. ​​Real-World Inspiration​​: Similar to Solana’s “Winternitz Vault,” Sui can implement “one-time pad” quantum defenses via smart contracts, adding a “second lock” to user assets.

​​Conclusion: The Future Belongs to Early Movers​​

The quantum threat to blockchain isn’t science fiction—it’s a countdown to a technological revolution. Through flexible architecture and phased upgrades, Sui has seized the initiative in this “security race.” For users, choosing a blockchain that supports quantum-resistant upgrades is like insuring digital assets against future risks—proactive preparation is the key to staying secure.

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