ELFが渡される。
RSAでがもらえるオラクルがある。
は32bitポインタの範囲内。
目的はを求めること。
LLLらしいがわかってない
hpmv — Today at 7:03 PM
Didn't even open some challenges
Tabula was the best though, my favorite here haha
მისზა — Today at 7:04 PM
any hint?
hpmv — Today at 7:04 PM
First own to leak the stack address, then you get message + sig pairs
მისზა — Today at 7:04 PM
I mean, there's some stack address a, and we can know a, we can know ak (mod m)
hpmv — Today at 7:05 PM
Then apparently use LLL to find two sets of these that multiply to the same number
hgarrereyn — Today at 7:05 PM
gg!
hpmv — Today at 7:05 PM
And once you have that, subtract the corresponding products of the signatures and that would be a multiple of N
