Related-mode attacks on PMAC

Abstract

PMAC(Parallelizable Message Authentication), proposed by Black and Rogaway in Eurocrypt'02, is fully parallelizable block-cipher mode of operation for authentication. Under the traditional attack models, PMAC is provable security. This paper uses related-mode attack to analyse the security of PMAC, and points out PMAC is insecurity when we use a few block cipher modes of operate at the same time using the same key, and gives some results and some advices on how to use it. © 2012 Springer-Verlag Berlin Heidelberg.