Quantum computing is set to revolutionise computation, cryptography, and data security. While these advances bring new possibilities, they also pose significant threats to existing encryption standards that have long safeguarded sensitive data. As quantum computers evolve, encryption methods like RSA, ECC (Elliptic Curve Cryptography), and Diffie-Hellman, which rely on the difficulty of solving complex mathematical problems, will become vulnerable. The potential for algorithms like Shor’s to break these encryption methods necessitates urgent action, particularly with the threat of “Harvest Now, Decrypt Later” (HNDL) attacks.
The “Harvest Now, Decrypt Later (HNDL) ” Threat
One of the key risks on the horizon is the possibility of malicious actors intercepting and storing encrypted data today with the intent of decrypting it later using quantum technology. Sensitive information shared today—such as business strategies, government communications, passwords, PII or medical records—could be vulnerable in the future if quantum-resistant encryption isn’t adopted.
Although quantum computers are not yet mainstream, the need to safeguard data from this future threat is already here.
Implementing Quantum Encryption: The Challenges
While quantum encryption offers a promising solution, there are significant hurdles:
- Algorithm Complexity: Developing quantum-resistant encryption algorithms is a complex, ongoing process. Emerging algorithms like lattice-based, hash-based, and multivariate cryptography show promise, but practical, industry-wide standards have yet to be fully established.
- Computational Overhead: Post-quantum encryption algorithms are typically more computationally demanding, leading to potential performance impacts on systems that require both speed and efficiency.
- Legacy System Compatibility: Transitioning existing systems, which rely on traditional cryptographic methods, to quantum-safe alternatives can be costly and time-consuming.
- Data Interoperability: Ensuring that quantum-resistant encryption integrates smoothly across platforms and communication channels remains a critical challenge to maintaining secure data flow without compromising usability.
How SharePass is Preparing for a Post-Quantum World
At SharePass, we are taking a forward-looking approach to safeguard our platform and clients from the threats posed by quantum computing.
Our platform already uses AES-256 GCM, a quantum-resistant encryption standard for a case of symmetric encryption. This algorithm provides strong protection against both classical and future quantum computing attacks. To further strengthen our system, we are actively enhancing our key exchange mechanisms for our asymmetric case with quantum-resistant encryption algorithms. This ensures that even as quantum computing capabilities grow, our encryption standards remain robust.
Additionally, we empower users to minimise risk by allowing time restrictions on shared data. By implementing expiration times for sensitive information, we limit the risk associated with prolonged exposure, reducing the chances that older, potentially vulnerable data can be decrypted by future quantum systems.
Navigating the Future with Confidence
Quantum encryption isn’t just about solving tomorrow’s problems—it’s about preparing for them today. By adopting quantum-resistant algorithms and reinforcing our encryption methods, SharePass is ensuring that confidential data remains secure, even as new threats emerge.
By leveraging latest encryption technologies and giving users tools to control the lifespan of their data, we provide a comprehensive solution that evolves with the shifting landscape of data sharing and cybersecurity.
