Loading CryptoViz...

Workspace

RECTANGLE

Compare Algorithms Benchmark Performance Start Challenge

RECTANGLE

Ultra-lightweight 64-bit SPN block cipher (IEEE TIFS 2015). 4×16 bit-matrix state with bit-level W-layer row rotations [0, 1, 12, 13]. RECT80 (80-bit key) and RECT128 (128-bit key) variants, 25 rounds.

Securesymmetric

Plaintext / Input Message

Cryptographic Key / Shift

Auto Compute

Workspace Presets

Save and restore visualizer settings in this browser.

Preset nameSave key with preset — disabled by default. Stored keys remain readable to anyone with access to this browser profile.

Saved presets for this cipher

Output ResultLocally Derived

No output yet

Imported traces are validated and replayed locally. They never run a cipher operation automatically.

Recommended Next Step

Continue your cryptography learning path

LBlock

Secure

Lightweight 64-bit Feistel block cipher (ICISC 2011). 80-bit key, 32 rounds. Uses 8 distinct 4-bit S-boxes (S0-S7) in round function, plus S8, S9 in key schedule. Strong provable security against differential/linear cryptanalysis.

Explore

Related Resources

📄 Docs & Theory 🎯 Challenge Mode 🧭 Cipher Advisor ⚖️ Compare Ciphers

Workspace

Crypto Workspace

Workspace

RECTANGLE

RECTANGLE

Workspace Presets

Recommended Next Step

Workspace

Crypto Workspace

Workspace

RECTANGLE

RECTANGLE

Workspace Presets

Recommended Next Step