Tropical cryptography III: Digital signatures

Abstract

We use tropical algebras as platforms for a very efficient digital signature protocol. Security relies on computational hardness of factoring one-variable tropical polynomials; this problem is known to be NP-hard. We also offer countermeasures against recent attacks by Panny and by Brown and Monico.

Keywords

• tropical algebra
• digital signature
• factoring polynomials
• 15a80
• 94a60