# RC4 Encrypt and Decrypt

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If you can somehow encrypt a plaintext using RC4, you can decrypt any content encrypted by that RC4 (using the same password) just using the encryption function.

If you can encrypt a known plaintext you can also extract the password. More references can be found in the HTB Kryptos machine:


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https://0xrick.github.io/hack-the-box/kryptos/
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https://0xrick.github.io/hack-the-box/kryptos/
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