Hash your Keys before Signing: BUFF Security of the Additional NIST PQC Signatures

ePrint Report: Hash your Keys before Signing: BUFF Security of the Additional NIST PQC Signatures

Thomas Aulbach, Samed Düzlü, Michael Meyer, Patrick Struck, Maximiliane Weishäupl

In this work, we analyze the so-called Beyond UnForgeability Features (BUFF) security of the submissions to the current standardization process of additional signatures by NIST. The BUFF notions formalize security against maliciously generated keys and have various real-world use cases, where security can be guaranteed despite misuse potential on a protocol level. Consequently, NIST declared …

beyond called current eprint report features hash keys michael nist nist pqc pqc process report security signatures signing standardization thomas work