We are going to recover a ECDSA private key from bad signatures. Same issue the Playstation 3 had that allowed it to be hacked.
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CHAPTERS
00:00 - The New Secure Filesystem and Its Signature Tokens
01:23 - Wrong Leads From 192-Bit Ciphers, Water and Vodka
02:47 - Recognizing secp192r1 and ECDSA
03:23 - The PlayStation 3 Reused-Nonce Vulnerability
04:01 - Why Repeated R Values Reveal a Reused K
04:44 - Recovering K and the ECDSA Private Key
05:40 - Implementing the Attack With Python ecdsa
07:28 - Signing passwd and Reading the Flag
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