$ cat writeup.md…
$ cat writeup.md…
spbctf
Task: elliptic curve point addition on y² = x³ - 3x + 1 over GF(257), given points P(8,177) and Q(234,53). Solution: applied standard ECC point addition formulas to compute P + Q = (31, 245), flag is coordinate concatenation REDACTED.
Permission denied (requires tier.pro)
Sign in with GitHub, Discord, or Google to continue. No email required.
$sign in$ grep --similar