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210-250 · Question #112
210-250 Question #112: Real Exam Question with Answer & Explanation
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Question
Early versions of the Microsoft PPTP virtual private network software used the same RC4 key for the sender and the receiver. Which attack is the network vulnerable to when a stream cipher like RC4 is used twice with the same key?
Options
- Aforgery attack
- Bmeet-in-the-middle attack
- Cciphertext-only attack
- Dplaintext-only attack
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