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Developer posts secret key on GitHub, loses $40K in 2 minutes
(cointelegraph.com)
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this post was submitted on 07 Jun 2024
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the format of the encrypted file can give the attackers an advantage. if your code reads the decrypted file, the attacker can guess the first line is a comment or the name of a setting. a savvy person can combine that with the algorithm to perform a "known plaintext attack", for example by generating a number of possible passwords that would lead to files starting like that.
That's smart. Anyone trying that should definitely have a machine-generated strong password!
That's not quite the definition of known plaintext attack (cryptography nerd here), that's bruteforce with a "crib" to use older terminology (known patterns which allows you to test candidate keys).
A known plaintext attack is defined as an attack on the algorithm to extract the key faster than bruteforce with analytical attacks.