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Can you show any reasonable case where encrypting a small file once would be unsafe with RC4? Maybe if you had 74 million such files...
by peterwwillis 11y ago
Can you show any reasonable case where encrypting a small file once would be unsafe with RC4? Maybe if you had 74 million such files...
- kkl 11y agoThere are known biases throughout RC4 output. There are really bad biases towards the beginning. A small file would likely be XOR'd with certain bytes or patterns of bytes. If this is not exploitable in your hypothetical scenario, it maybe exploitable in others. I think this is generally unsafe.