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Lightweight Cryptography

Overview

NIST has initiated a process to solicit, evaluate, and standardize lightweight cryptographic algorithms that are suitable for use in constrained environments where the performance of current NIST cryptographic standards is not acceptable. In August 2018, NIST published a call for algorithms (test vector generation code) to be considered for lightweight cryptographic standards. The deadline for submitting algorithms has passed.

Candidates

NIST received 57 submissions to be considered for standardization. After the initial review of the submissions, 56 were selected as Round 1 Candidates.   Of the 56 Round 1 candidates, 32 were selected to continue to Round 2.

On March 29, 2021, NIST announced ten finalists as ASCON, Elephant, GIFT-COFB, Grain128-AEAD, ISAP, Photon-Beetle, Romulus, Sparkle, TinyJambu, and Xoodyak

Next Steps

The success of the NIST Lightweight Crypto Standardization process relies on the efforts of the researchers from the cryptographic community that provide security, implementation and performance analysis of the candidate algorithms. NIST strongly encourages public evaluation and publication of the results throughout the process.

The final round of the standardization process is expected to conclude late in 2022.

Contacts

Lightweight Crypto Technical Inquiries
lightweight-crypto@nist.gov

Lawrence Bassham

Donghoon Chang

Deukjo Hong

Jinkeon Kang

John Kelsey

Kerry McKay

Meltem Sönmez Turan

Noah Waller

Topics

Security and Privacy: cryptography

Created January 03, 2017, Updated May 25, 2022