cryptoProhard

FHAES (Fully Homomorphic AES)

srdnlen

Task: Garbled circuit-based FHAES system where server holds AES key and allows custom circuit evaluations. Solution: Exploit degenerate half-gate AND(x, NOT(x)) to recover delta, then brute-force key bytes by checking garbled table consistency.

$ ls tags/ techniques/
aesdiffie_hellmangarbled_circuitshalf_gatefree_xoroblivious_transferboolean_circuitsw25519shake128boyar_peralta_sbox
delta_recovery_via_degenerate_andcustom_circuit_abusekey_byte_brute_forcegarbled_table_consistency_checksbox_linear_layer_tracing
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