cryptomedium
Birds of Randomness
hackthebox
Task: Recover EC private key and predict PRNG output given a point on a curve with smooth order. Solution: Pohlig-Hellman ECDLP to recover scalar, factor into prime triple, try all 6 permutations as Wichmann-Hill PRNG state.
$ ls tags/ techniques/
pohlig_hellman_ecdlpbsgs_subgroupprng_state_recoverycrt_reconstructionprime_triple_factorization
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