Post-Quantum Cryptography: Additional Digital Signature Schemes
Round 2 Additional Signatures
Official comments on the Second Round Candidates should be submitted using the "Submit Comment" link for the appropriate algorithm. Comments from the pqc-forum Google group subscribers will also be forwarded to the pqc-forum Google group list. We will periodically post and update the comments received to the appropriate algorithm.
All relevant comments will be posted in their entirety and should not include PII information in the body of the email message.
Please refrain from using OFFICIAL COMMENT to ask administrative questions, which should be sent to pqc-comments@nist.gov.
The rationale for choosing the Round 2 Candidates is described in NIST IR 8528, Status Report on the First Round of the Additional Digital Signature Schemes for the NIST Post-Quantum Cryptography Standardization Process
History of Round 2 Updates
Code-based Signatures
| Algorithm |
Algorithm Information |
Submitters |
Comments |
CROSS
Codes and Restricted Objects Signature
Scheme |
Specification
IP Statements
Zip file (13MB)
Website
|
Marco Baldi
Alessandro Barenghi
Michele Battagliola
Sebastian Bitzer
Marco Gianvecchio
Patrick Karl
Felice Manganiello
Alessio Pavoni
Gerardo Pelosi
Paolo Santini
Jonas Schupp
Edoardo Signorini
Freeman Slaughter
Antonia Wachter-Zeh
Violetta Weger
|
Submit Comment
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|
LESS
Linear Equivalence
Signature Scheme |
Specification
IP Statements
Zip file (4MB)
KAT Files (69MB)
Website
|
Marco Baldi
Alessandro Barenghi
Luke Beckwith
Jean-François Biasse
Tung Chou
Andre Esser
Kris Gaj
Patrick Karl
Kamyar Mohajerani
Gerardo Pelosi
Edoardo Persichetti
Markku-Juhani O. Saarinen
Paolo Santini
Robert Wallace
Floyd Zweydinger
|
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|
Isogeny Signatures
| Algorithm |
Algorithm Information |
Submitters |
Comments |
| SQIsign |
Specification
IP Statements
Zip file (15MB)
Website
|
Marius A. Aardal
Gora Adj
Diego F. Aranha
Andrea Basso
Isaac Andrés Canales Martínez
Jorge Chávez-Saab
Maria Corte-Real Santos
Pierrick Dartois
Luca De Feo
Max Duparc
Jonathan Komada Eriksen
Tako Boris Fouotsa
Décio Luiz Gazzoni Filho
Basil Hess
David Kohel
Antonin Leroux
Patrick Longa
Luciano Maino
Michael Meyer
Kohei Nakagawa
Hiroshi Onuki
Lorenz Panny
Sikhar Patranabis
Christophe Petit
Giacomo Pope
Krijn Reijnders
Damien Robert
Francisco Rodríguez Henríquez
Sina Schaeffler
Benjamin Wesolowski |
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|
Lattice-based Signatures
| Algorithm |
Algorithm Information |
Submitters |
Comments |
| HAWK |
Specification
Zip file (6MB)
Website
|
Joppe W. Bos
Olivier Bronchain
Léo Ducas
Serge Fehr
Yu-Hsuan Huang
Thomas Pornin
Eamonn W. Postlethwaite
Thomas Prest
Ludo N. Pulles
Wessel van Woerden |
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|
MPC-in-the-Head Signatures
| Algorithm |
Algorithm Information |
Submitters |
Comments |
Mirath
(merger of MIRA/MiRitH) |
Specification
IP Statements
Zip file (26MB)
Website
|
Gor Adj
Nicolas Aragon
Stefano Barbero
Magali Bardet
Emmanuele Bellini
Loïc Bidoux
Jesús-Javier Chi-Domínguez
Victor Dyseryn
Andre Esser
Thibauld Feneuil
Philippe Gaborit
Romaric Neveu
Matthieu Rivain
Luis Rivera-Zamarripa
Carlo Sanna
Jean-Pierre Tillich
Javier Verbel
Floyd Zweydinger |
Submit Comment
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|
MQOM
MQ on my Mind |
Specification
IP Statements
Zip file (48MB)
Website
|
Ryad Benadjila
Charles Bouillaguet
Thibauld Feneuil
Matthieu Rivain |
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|
| PERK |
Specification
IP Statements
Zip file (37MB)
Website
|
Najwa Aaraj
Slim Bettaieb
Loïc Bidoux
Alessandro Budroni
Victor Dyseryn
Andre Esser
Thibauld Feneuil
Philippe Gaborit
Mukul Kulkarni
Victor Mateu
Marco Palumbi
Lucas Perin
Matthieu Rivain
Jean-Pierre Tillich
Keita Xagawa |
Submit Comment
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|
| RYDE |
Specification
IP Statements
Zip file (21MB)
Website
|
Nicolas Aragon
Magali Bardet
Loïc Bidoux
Jesús-Javier Chi-Domínguez
Victor Dyseryn
Thibauld Feneuil
Philippe Gaborit
Antoine Joux
Romaric Neveu
Matthieu Rivain
Jean-Pierre Tillich
Adrien Vinçotte |
Submit Comment
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|
SDitH
Syndrome Decoding in the Head |
Specification
IP Statements
Zip file (14MB)
Website
|
Carlos Aguilar Melchor
Slim Bettaieb
Loïc Bidoux
Thibauld Feneuil
Philippe Gaborit
Nicolas Gama
Shay Gueron
James Howe
Andreas Hülsing
David Joseph
Antoine Joux
Mukul Kulkarni
Edoardo Persichetti
Tovohery H. Randrianarisoa
Matthieu Rivain
Dongze Yue
|
Submit Comment
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|
Multivariate Signatures
Symmetric-based Signatures
| Algorithm |
Algorithm Information |
Submitters |
Comments |
| FAEST |
Specification
IP Statements
Zip file (50MB)
Website
|
Carsten Baum
Lennart Braun
Ward Beullens
Cyprien Delpech de Saint Guilhem
Michael Klooß
Christian Majenz
Shibam Mukherjee
Emmanuela Orsini
Sebastian Ramacher
Christian Rechberger
Lawrence Roy
Peter Scholl |
Submit Comment
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|
Project Links
Additional Pages
Created August 29, 2022, Updated March 13, 2025
