$ ctf42

Safe_bn254

Crypto No technique tags yet.
Difficulty Not rated yet

doesn’t bn254 look safer now?

y^2=x^3+2023 if you are not afraid of generating curves and discrete logarithms, you could try looking for a flag in x, where res = x * curve_gen

The generators are given by (in affine coordinates)

curve_gen_x=14810849444223915365675197147935386463496555902363368947484943637353816116538 curve_gen_y=742647408428947575362456675910688304313089065515277648070767281175728054553

The result coordinates are res_x=5547094896230060345977898543873469282119259956812769264843946971664050560756 res_y=14961832535963026880436662513768132861653428490706468784706450723166120307238

you can use any language for finding the solution and convert the flag into text format

The prime modulus in GF(p) p=21888242871839275222246405745257275088696311157297823662689037894645226208583

Writeups

Official

No official writeup linked.

Community

No community writeups yet. Solved it? Share how.

Log in to add a community writeup.