ISARA Radiate Quantum-Safe Toolkit vs OpenFHE: side-by-side comparison (2026)
ISARA Radiate Quantum-Safe Toolkit is a commercial Post-Quantum cryptography solution by ISARA. OpenFHE is a free Post-Quantum cryptography solution. Features, integrations, deployment and the company behind each one, side by side.
Our take
What our shortlists say about the one we picked.
- ISARA Radiate Quantum-Safe Toolkit
Best for: Developers adding PQC to apps and devices
ISARA Radiate earns a spot because hybrid certificates let old and new PKI run side by side, so you can move in steps instead of all at once. It suits development teams adding NIST algorithms to apps or to constrained devices like smartcards. Since it is a toolkit, plan for your own engineers to do the work, and ask how the crypto-agile API lets you switch algorithms later.
From Best Post-Quantum Cryptography Solutions for Business, Fall 2026
Reviewed by Nika (Nikoloz) Kokhreidze.
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VisitSDK for integrating NIST-standardized PQC algorithms into apps and devices.
OpenFHE is an open-source library implementing post-quantum Fully Homomorphic Encryption schemes with simplified APIs and cross-platform support.
Side-by-side comparison
Feature
ISARA Radiate Quantum-Safe Toolkit
OpenFHE
Pricing model
Commercial
Free
Category
Post-Quantum Cryptography
Post-Quantum Cryptography
Deployment and fit
Deployment type
Hybrid
On-Premises
Company size fit
Mid-Market, Enterprise
Mid-Market, Enterprise
Company
Company
ISARA
–
Use cases and capabilities
Quantum Safe
Yes
No
SDK
Yes
No
Encryption
Yes
Yes
Open Source
No
Yes
Core features
10 features listed
No features listed
Integrations
3 integrations listed
No integrations listed
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