Attacking Very Weak RC4-Like Ciphers the Hard Way

Research by: Ben Herzog What? RC4 is a popular encryption algorithm. The way it works is that a “Key Scheduling Algorithm” (KSA) takes your key and generates a 256-byte array, and then a “Pseudo-Random Generation Algorithm” (PRGA) uses that byte array to output an endless stream of bytes (the “key stream”), which look like random […]

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