Length Extension Attack Demonstration (Video)

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This is a video version of my blog post, Length Extension Attack. In it, I talk through the theory of length extension attacks and demonstrate an SHA-1 length extension attack against an (imaginary) website.

The video can also be found on:

1 comment

  1. Thank you so much for making this video! This is one of the best explanations of a hash length extension attack I’ve seen and I’ve been pouring through tons of videos and blog posts trying to wrap my head around it. Will recommend to anyone I know interested in going through CryptoPals where this is one of the challenges (including implementing this attack in code).

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