Interactive Threshold Mercurial Signatures and Applications

ePrint Report: Interactive Threshold Mercurial Signatures and Applications

Masaya Nanri, Octavio Perez Kempner, Mehdi Tibouchi, Masayuki Abe

Equivalence class signatures allow a controlled form of malleability based on equivalence classes defined over the message space. As a result, signatures can be publicly randomized and adapted to a new message representative in the same equivalence class. Notably, security requires that an adapted signature-message pair looks indistinguishable from a random signature-message pair in the space of valid signatures for the new message …

applications can class defined eprint report message report result signatures space threshold