MultimodalKES is a new cryptographic protocol that combines symmetric, post-quantum, and asymmetric key cryptography to establish end-to-end encryption keys for long-term secure, quantum-safe communications. It is deployable at scale in enterprise applications and can be easily upgraded to work with quantum key distribution devices. MultimodalKES improves upon current asymmetric-PQC hybrid cryptographic approaches and is recommended by national cybersecurity agencies.
