ok. I thing the curves can have vulns.
so : I decided change the curve parameters like below:
p=75223
n=74929
E = EllipticCurve(GF(p), [0, 7])
G= E.point((20668 ,25411 ))
later I create the sequence with checking how much I must multiply the value of sequence to get next sequence:
how to read
seq value multipler next sequence
seq 0 23728 * 49108 %n 13745
seq 0 23728 * 49108 %n 13745
seq 1 13745 * 24486 %n 53931
seq 2 53931 * 49283 %n 74914
seq 3 74914 * 4207 %n 11824
seq 4 11824 * 765 %n 53880
seq 5 53880 * 66562 %n 33833
seq 6 33833 * 32856 %n 45333
seq 7 45333 * 4410 %n 7958
seq 8 7958 * 27460 %n 33716
seq 9 33716 * 35330 %n 39967
seq 10 39967 * 26010 %n 51653
seq 11 51653 * 50254 %n 4515
seq 12 4515 * 69360 %n 32109
seq 13 32109 * 28532 %n 52034
so I wanted know that those values are constant
then I little changed my algorithm for new sequnce.. ->
seq 0 47456 * 49108 %n 27490
seq 1 27490 * 24486 %n 32933
seq 2 32933 * 49283 %n 74899
seq 3 74899 * 4207 %n 23648
seq 4 23648 * 765 %n 32831
seq 5 32831 * 66562 %n 67666
seq 6 67666 * 32856 %n 15737
seq 7 15737 * 4410 %n 15916
seq 8 15916 * 27460 %n 67432
seq 9 67432 * 35330 %n 5005
seq 10 5005 * 26010 %n 28377
seq 11 28377 * 50254 %n 9030
seq 12 9030 * 69360 %n 64218
seq 13 64218 * 28532 %n 29139
hmm. those value are constatnts. this can be suggest that some curve can have...hidden layer:)