Sentence:  Also in the case of a Gauss period of type (n,1), i.e. a type I optimal normal element, we find a <WSD>primitive element</WSD> in \mathrm{GF}(2^n) which is a sparse polynomial of a type I optimal normal element and we propose a fast exponentiation algorithm which is applicable for both software and hardware purposes. 
Meaning of the word marked with <WSD> tags:  An element that generates the multiplicative group of a given Galois field (finite field).