Skip to main content
U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

Status Report on the First Round of the NIST Post-Quantum Cryptography Standardization Process



Gorjan Alagic, Jacob M. Alperin-Sheriff, Daniel Apon, David Cooper, Quynh H. Dang, Carl A. Miller, Dustin Moody, Rene C. Peralta, Ray A. Perlner, Angela Y. Robinson, Daniel Smith-Tone, Yi-Kai Liu


The National Institute of Standards and Technology is in the process of selecting one or more public-key cryptographic algorithms through a public competition-like process. The new public- key cryptography standards will specify one or more additional digital signature, public-key encryption, and key-establishment algorithms to augment FIPS 186-4, Digital Signature Standard (DSS), as well as special publications SP 800-56A Revision 2, Recommendation for Pair-Wise Key Establishment Schemes Using Discrete Logarithm Cryptography, and SP 800-56B, Recommendation for Pair-Wise Key-Establishment Schemes Using Integer Factorization. It is intended that these algorithms will be capable of protecting sensitive information well into the foreseeable future, including after the advent of quantum computers. In November 2017, 82 candidate algorithms were submitted to NIST for consideration. Among these, 69 met both the minimum acceptance criteria and our submission requirements, and were accepted as First-Round Candidates on Dec. 20, 2017, marking the beginning of the First Round of the NIST Post-Quantum Cryptography Standardization Process. This report describes the evaluation criteria and selection process, based on public feedback and internal review of the first-round candidates, and summarizes the 26 candidate algorithms announced on January 10, 2019 for moving forward to the second round of the competition. The 17 Second-Round Candidate public-key encryption and key-establishment algorithms are BIKE, Classic McEliece, CRYSTALS- KYBER, FrodoKEM, HQC, LAC, LEDAcrypt (merger of LEDAkem/LEDApkc), NewHope, NTRU (merger of NTRUEncrypt/NTRU-HRSS-KEM), NTRU Prime, NTS-KEM, ROLLO (merger of LAKE/LOCKER/Ouroboros-R), Round5 (merger of Hila5/Round2), RQC, SABER, SIKE, and Three Bears. The 9 Second Round Candidates for digital signatures are CRYSTALS-DILITHIUM, FALCON, GeMSS, LUOV, MQDSS, Picnic, qTESLA, Rainbow, and SPHINCS+.
NIST Interagency/Internal Report (NISTIR) - 8240
Report Number


cryptography, digital signatures, post-quantum cryptography, public-key encryption, key- establishment mechanism (KEM), quantum resistant, quantum safe


Alagic, G. , Alperin-Sheriff, J. , Apon, D. , Cooper, D. , Dang, Q. , Miller, C. , Moody, D. , Peralta, R. , Perlner, R. , Robinson, A. , Smith-Tone, D. and Liu, Y. (2019), Status Report on the First Round of the NIST Post-Quantum Cryptography Standardization Process, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed May 6, 2021)
Created January 30, 2019, Updated March 1, 2021