Re: re: Cuddles: Complexity: Another nail in the coffin...
"Stream ciphers", one of the common kinds of encryption algorithm, work by taking a key and generating a long string of pseudo-random numbers from that key. That then gets XOR'd into the data.
It's the same algorithm to encrypt and to decrypt. (Like how ROT13 is the same algorithm to encrypt and to decrypt, except a lot more secure).
So it's certainly possible that a core bug results in the specific sequence of instructions in the pseudo-random-number generator part giving the wrong answer. And it's certainly possible that is reproducible, repeating it with the same key gives the same wrong answer each time.
That would lead to the described behaviour - encrypting on the buggy core gives a different encryption from any other core, so only the buggy core can decrypt it.
Biting the hand that feeds IT
