A New Lever Function with Adequate Indeterminacy. (arXiv:2108.13086v2 [cs.CR] UPDATED)

The key transform of the REESSE1+ asymmetrical cryptosystem is Ci = (Ai * W ^
l(i)) ^ d (% M) with l(i) in Omega = {5, 7, ..., 2n + 3} for i = 1, ..., n,
where l(i) is called a lever function. In this paper, the authors give a
simplified key transform Ci = Ai * W ^ l(i) (% M) with a new lever function
l(i) from {1, ..., n} to Omega = {+/-5, +/-6, ..., +/-(n …

authors called function key omega the key