Line-Rate Post-Quantum Encryption for 100 Gbps+ Spaceborne Laser Cross-Links

Pipelined AES-256-GCM and ChaCha20 streaming engines re-keyed via ML-KEM in vacuum.

Algorithmic Architecture & Mathematical Foundations

The Securing 100G Laser ISLs architecture is engineered to provide cryptographically provable security based on worst-case lattice hardness. By replacing vulnerable discrete logarithm and factorization primitives with high-dimensional Euclidean lattice vectors, the system guarantees long-term confidentiality against cryptanalytically relevant quantum computers.

Production Deployment & Operational Considerations

Deploying Securing 100G Laser ISLs requires careful balancing of public key size overhead, network MTU fragmentation limits, and memory cache footprint. Through hardware coprocessor offload and vectorized assembly pipelines, production systems achieve near-zero performance degradation compared to legacy classical ciphers.

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