cryptohard
Blessed
hackthebox
Task: Forge an aggregated BLS signature for all verified robots in a system with EC-LCG PRNG and ZKP verification. Solution: Craft a rogue BLS public key that cancels all existing keys when aggregated, crack EC-LCG from truncated outputs using LLL lattice reduction with linearized polynomial equations, then predict ZKP challenge bits from the cracked PRNG state.
$ ls tags/ techniques/
bls_rogue_key_attackec_lcg_crackingzkp_cheatinglll_lattice_reductionlinearization_of_monomials
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