| H. Lenstra. Finding isomorphisms between nite elds. Mathematics of Computation, 56:329-347, 1991. |
....curve is ever considered at a time) The issue arises when constructing elliptic curves on which to base a cryptosystem; since there are many di erent ways to write down elliptic curves, it is important to know whether some of these representations are stronger or weaker than others. Lenstra [18] has studied a similar problem for nite elds F p n . The result is that there is a polynomial time algorithm to convert between any two di erent bases for F p n as a vector space over F p . This is an important result as it means that all representations used for nite elds in cryptosystems ....
H.W. Lenstra Jr., Finding isomorphisms between nite elds, Math. Comp., 56, No. 193 (1991) 329 347
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H. Lenstra. Finding isomorphisms between nite elds. Mathematics of Computation, 56:329-347, 1991.
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