WEP encryption uses RC4.

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Multiple Choice

WEP encryption uses RC4.

Explanation:
RC4 is the encryption algorithm used by WEP. WEP relies on RC4 as its encryption engine, combining a secret key with a per-packet initialization vector to produce a keystream that is XORed with the plaintext. Each packet carries a 24-bit IV in the header, and this IV is transmitted in the clear, which, together with RC4’s weaknesses when the IV is short and reused, leads to exploitable patterns and key-recovery attacks. The CRC-32 used for integrity in WEP is not cryptographically strong, contributing to overall insecurity, but the core fact here is that RC4 is what WEP uses for encryption. The other answers don’t fit, since the statement is indeed true.

RC4 is the encryption algorithm used by WEP. WEP relies on RC4 as its encryption engine, combining a secret key with a per-packet initialization vector to produce a keystream that is XORed with the plaintext. Each packet carries a 24-bit IV in the header, and this IV is transmitted in the clear, which, together with RC4’s weaknesses when the IV is short and reused, leads to exploitable patterns and key-recovery attacks. The CRC-32 used for integrity in WEP is not cryptographically strong, contributing to overall insecurity, but the core fact here is that RC4 is what WEP uses for encryption. The other answers don’t fit, since the statement is indeed true.

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