More forging (and patching) of tropical signatures

ePrint Report: More forging (and patching) of tropical signatures

Daniel R. L. Brown, Chris Monico

Panny [3] described how to forge the “tropical signatures” proposed by Chen, Grigoriev and Shpilrain [1]. (These signatures are loosely related to the NP-complete problem of factoring tropical polynomials).
We describe more methods to forge these tropical signatures. We also describe some patches that thwart all but one of these forgery methods (which we summarize as re-hashing an honest signature).

chen chris daniel eprint report factoring forge patching problem report signatures