Post-Quantum Cryptography (PQC) and Versa: Future-Proofing Enterprise Security Against Quantum Threats

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By Dhiraj Sehgal
Senior Director, Product Marketing
March 12, 2025
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With the rapid evolution of quantum computing, traditional cryptographic methods, including TLS encryption, IPsec tunnels, and key exchange mechanisms, face increasing vulnerabilities. Quantum computers can break widely used encryption algorithms, necessitating the adoption of post-quantum cryptography (PQC) solutions.

Tech giants like Google have already implemented PQC-ready encryption. Google Chrome, for example, has introduced support for X25519Kyber768, a post-quantum cipher designed to counteract quantum attacks. However, this transition poses significant challenges for enterprise security platforms, TLS proxies, and firewall systems that must process these new cryptographic protocols without disrupting business operations.

Enterprise Challenges in Adopting Post-Quantum Cryptography

Enterprises face certain hurdles in implementing PQC, including:

How Enterprises Can Prepare for Post-Quantum Cryptography

To facilitate the transition to PQC, organizations should consider:

How Versa Secures PQC Negotiations

Versa has taken a proactive approach to PQC by integrating X25519Kyber768 into its security solutions, ensuring organizations remain quantum-secure while maintaining operational efficiency. When the Google Chrome browser initiates a request to a web server and attempts to negotiate X25519Kyber768, the Versa platform dynamically adapts to ensure secure and uninterrupted communication.

Scenario 1:

If the server rejects X25519Kyber768, VOS facilitates a re-negotiation, allowing server to select a different cipher while maintaining session security since TLS decryption is not enforced.

Scenario 2:

In case where the server accepts X25519Kyber768 and TLS encryption is not enabled, VOS seamlessly forwards the encrypted session without interference.

Scenario 3:

However, if Versa does not yet support decryption for this hybrid key exchange mechanism, VOS ensures connectivity by negotiating a compatible non-Kyber alternative Cipher, preserving both security and performance. 

Ensuring a Smooth Transition to PQC

Versa’s quantum-ready security framework enables enterprises to transition to PQC without compromising security or business continuity. The hybrid PQC negotiation model ensures compatibility with existing cryptographic systems while preparing for full-scale post-quantum encryption.

Key Benefits of Versa’s PQC Strategy

  • Future-Proof Security

    : Versa aligns with emerging PQC standards to ensure resilience against quantum threats.
  • Seamless Enterprise Integration

    : Supports hybrid PQC and non-PQC environments to prevent disruptions.
  • Regulatory Compliance

    : Maintains FIPS 140-3 and NIAP validation for government and enterprise security requirements.
  • Operational Continuity

    : Ensures a smooth transition to PQC without compromising existing security frameworks.

As quantum computing accelerates, enterprises must future-proof their encryption strategies. Versa’s Universal SASE platform ensures a secure, compliant, and seamless transition to post-quantum cryptography.

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