METHOD AND DEVICE FOR GENERATING A PSEUDORANDOM STRING

摘要

The invention relates to a method of generating a pseudorandom string of terms belonging to a finite field K of cardinal q = 2 and which are intended to be used in a cryptographic procedure, said method comprising the iterative calculation of a system (G) of m polynomials with n variables belonging to a finite field K. According to the invention, the coefficients of these m polynomials are regenerated at each iteration. The invention also relates to a pseudorandom string generator intended to implement this method.