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Bringing Metal to a crypto backdoor fight! Exploiting the GPU and the 90s crypto wars to crack the APT Down code signing keys

https://reverse.put.as/2025/08/24/rc4bruteforce

@reverseengine
Reverse Engineering Bringing Metal to a crypto backdoor fight! Exploiting the GPU and the 90s crypto wars to crack the APT Down code signing keys The APT Down leak contained four code signing certificates and the passphrase only for the most recent one. Since the passphrase was found on the usual rockyou.txt wordlist, I was curious to see if the remaining three could be cracked using the same wordlist.…
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