Computer Security Resource Center

Computer Security Resource Center

Computer Security
Resource Center

Lightweight Cryptography

Project Overview

There are several emerging areas (e.g. sensor networks, healthcare, distributed control systems, the Internet of Things, cyber physical systems) in which highly-constrained devices are interconnected, typically communicating wirelessly with one another, and working in concert to accomplish some task. Because the majority of current cryptographic algorithms were designed for desktop/server environments, many of these algorithms do not fit into constrained devices.  

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. NIST has published a call for algorithms to be considered for lightweight cryptographic standards. The deadline for submitting algorithms has passed.  

NIST will hold a workshop on November 4-6, 2019 in Gaithersburg, MD, to discuss candidate algorithms, including design strategies, implementations, performance, cryptanalysis, and target applications. 

Round 1 Candidates

NIST has received 57 submissions to be considered for standardization. After the initial review of the submissions, 56 were selected as Round 1 Candidates.   

Next Steps

NIST will review the public evaluations regarding the cryptographic strengths and weaknesses, implementation costs, and performance of the candidate algorithms. This information will be used to narrow down the candidate pool for more focused study and analysis. We expect to announce the LWC Round 2 candidates before September 2019.  

Timeline

Date Event
July 20-21, 2015  First Lightweight Cryptography Workshop at NIST 
October 17-18, 2016 Second Lightweight Cryptography Workshop at NIST 
August 11, 2016  (Draft) NISTIR 8114 is published. 
October 31, 2016  End of public comment period to Draft NISTIR 8114 
Public comments received (August 11 - October 31,2016) 

March 28, 2017 

NISTIR 8114 Report on Lightweight Cryptography is published. 
April 26, 2017 (Draft) Profiles for Lightweight cryptography standardization process is published. 
May 14, 2018  (Draft) Submission Requirements and Evaluation Criteria for the Lightweight cryptography standardization process is published.. 
May 14, 2018 Federal Register Notice is published. 
June 16, 2017  Public comments received (April 26 - June 16, 2017) 
June 28, 2018  End of public comment period to the submission requirement. 
Public comments received (May 14-June 28, 2018). 
August 27, 2018 Federal Register Notice is published
August 27, 2018  Submission Requirements and Evaluation Criteria for the Lightweight Cryptography Standardization Process is published.
January 4, 2019 Early submission deadline for early feedback 
February 25, 2019  Submission dealine
March 29, 2019 Amendment Deadline
April 18, 2019  Announcement of the Round 1 Candidates
November 4-6, 2019  Third Lightweight Cryptography Workshop at NIST

 

Additional Pages

Email ListRound 1 Candidates

Contacts

Lightweight Crypto Technical Inquiries
lightweight-crypto@nist.gov

Lawrence Bassham

Çağdaş Çalık

Kerry McKay

Meltem Sönmez Turan

Topics

Security and Privacy: cryptography

Created January 03, 2017, Updated April 22, 2019