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2 Comments on “Which encryption algorithm does WPA use?

  1. nephelai says:

    Explanation:

    The RC4 Encryption Algorithm, developed by Ronald Rivest of RSA, is a shared key stream
    cipher algorithm requiring a secure exchange of a shared key. The symmetric key algorithm is
    used identically for encryption and decryption such that the data stream is simply XORed with the
    generated key sequence. The algorithm is serial as it requires successive exchanges of state
    entries based on the key sequence. Hence implementations can be very computationally
    intensive. The RC4 encryption algorithm is used by standards such as IEEE 802.11 within WEP
    (Wireless Encryption Protocol) using 40 and 128-bit keys. Published procedures exist for cracking
    the security measures as implemented in WEP.




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