PQS
Petoron Quantum Standard (PQS)
... keystream generator - secure, large-scale XOR without key reuse.
Fake padding (HEAD/TAIL) - obfuscates binary boundaries and payload structure.
Precise size encoding - restores original payload exactly.
Supports files up to 128 MB per encrypted block.
No dependencies, fully offline, cross-platform Python implementation.
PQS is designed for high-assurance security, full auditability, and deterministic offline use - without unnecessary complexity.
https://github.com/01alekseev/PQS