NIST is calling for additional digital signature proposals to be considered
in the PQC standardization process. NIST is primarily interested in additional general-purpose signature schemes that are not based on structured lattices. For certain applications, such as certificate transparency, NIST may also be interested in signature
schemes that have short signatures and fast verification. NIST is open to receiving additional submissions based on structured lattices, but is intent on diversifying the post-quantum signature standards. As such, any structured lattice-based signature proposal
would need to significantly outperform CRYSTALS-Dilithium and FALCON in relevant applications and/or ensure substantial additional security properties to be considered for standardization.
You can find the Call, as well as instructions and requirements for submissions at:
Submission packages must be received by NIST by June 1, 2023. No amendments to packages will be permitted after the submission deadline, except at specified times during the evaluation phase.
Also, note that previously
NIST had required the signed intellectual property statements specified in Section 2.D to be mailed in. NIST can now accept digitally signed (or digitally scanned) versions of the intellectual property statements.
Please let us know if you have any questions.