RotorCrypt X
Free offline encryption – Enigma + AES-256-GCM – no cloud
RotorCrypt X is a free offline hybrid encryption software for Windows 10/11 that protects private messages with six independent cryptographic layers — making interception practically impossible even if all stored files are compromised.
Six cryptographic layers: Enigma rotor cipher with up to 50 rotors and 241-digit key combinations. AES-256-GCM military-grade authenticated encryption. HKDF-SHA3-256 key derivation with Perfect Forward Secrecy. Argon2id password hardening — 256 MB RAM per attempt, brute-force practically impossible even on GPU clusters. Split Key via ECDH Curve25519 — neither party alone can compute the shared key. Forward Secrecy²: contact ID permanently deleted after handshake.
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