- QNu Hodos - Post Quantum Cryptography (PQC)
Best for: Teams replacing RSA-based key exchange and signatures
QNu Hodos makes the list as a library that replaces RSA-based key exchange and signatures, while hybrid mode keeps classical algorithms running during the move. Because it needs no extra hardware and runs on any platform, it fits companies of any size that can change their own applications. It is engineered to support FIPS 140-3, so ask whether certification is done or still planned before you rely on it for regulated work.
From Best Post-Quantum Cryptography Solutions for Business, Fall 2026
