SHA2 Fatal Flaw? (Hash Length Extension Attack) - Computerphile

SHA2's weakness explained by Dr Mike Pound -- Check out Brilliant's courses and start for free at https://brilliant.org/computerphile/ (episode sponsor) -- More links in full description below ↓↓↓

SHA2 is susceptible to a length extension attack, meaning supposedly secure messages can be added to and still pass certain security tests.

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Post from Computerphile on September 23, 2025

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