cryptoProhard

Широковещание (Broadcasting)

hackerlab

Task: RSA encrypted flag sent to 3 recipients with e=3 and different moduli, hint about 'Swedish mathematician'. Solution: Håstad's Broadcast Attack using Chinese Remainder Theorem to recover m³, then extract cube root.

$ ls tags/ techniques/
rsacrtchinese_remainder_theoremmulti_recipientsame_messagehastad_broadcast_attacksmall_exponente_equals_3cube_root
Håstad's Broadcast AttackChinese Remainder Theorem (CRT)Integer nth root extractionMulti-recipient RSA exploitation
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