楕円曲線
#TSG_LIVE_CTF_12 #!/usr/bin/env sage from flag import flag from random import SystemRandom randgen = SystemRandom() class EC: O = (0,1,0) def __init__(self,k,a): a1,a2,a3,a4,a6 = map(k,a) self.f = lambda x,y: y**2+a1*x*y+a3*y-x**3-a2*x**2-…
#TSG_LIVE_CTF_12 #!/usr/bin/env sage from flag import flag from random import SystemRandom randgen = SystemRandom() class EC: O = (0,1,0) def __init__(self,k,a): a1,a2,a3,a4,a6 = map(k,a) self.f = lambda x,y: y**2+a1*x*y+a3*y-x**3-a2*x**2-…