Duel of the Cybersecurity Titans for Lightweight Crypto: Meet Romulus

The NIST competition for lightweight cryptography has reached the final stage, and with a shortlist of 10 candidates. Each differs in their approach, but they aim to create a cryptography method that is secure, has a low footprint, and is robust against attacks.


SKINNY is a lightweight block cipher. It a 64-bit or 128-bit block size, and a key size of 64 bits, 128 bits and 256 bits. The methods are SKINNY-64–64 (64-bit block, 64-bit key and 32 rounds); SKINNY-64–128 (64-bit block, 128-bit key, and 36 rounds); SKINNY-64–192 (64-bit block, 192-bit key, and 40 rounds); SKINNY-128–128 (128-bit block, 128-bit key, and 40 rounds); SKINNY-128–256 (128-bit block, 256-bit key, and 48 rounds); SKINNY-128–384 (128-bit block, 384 key, and 56 rounds). For a 64-bit block it uses a 4x4 matrix for nibbles and a 4x4 matrix of bytes for a 128-bit block size.

Ref: Link


Here is the demo Romulus AEAD:

Professor of Cryptography. Serial innovator. Believer in fairness, justice & freedom. EU Citizen. Auld Reekie native. Old World Breaker. New World Creator.

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