Enqpy™ Core — a symmetric stream cipher with a proved ciphertext-only confidentiality invariant: every ciphertext is mathematically consistent with at least 2^128 plaintexts at HIGH. C reference, FCD, test vectors. Proof: enqpy.com/verify
embedded encryption cipher key-wrapping c11 reference-implementation cryptography-tools stream-ciphers symmetric-encryption test-vectors shannon-entropy formal-proof finite-key sbox-free plaintext-equivocation ciphertext-only mod16 patent-non-assertion
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Updated
Sep 13, 2026 - C