What is the IV key size used in WPA2?
A.
32
B.
24
C.
16
D.
48
E.
128
What is the IV key size used in WPA2?
What is the IV key size used in WPA2?
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What is the IV key size used in WPA2?
What is the IV key size used in WPA2?
A.
32
B.
24
C.
16
D.
48
E.
128
A 256-bit WEP system is available from some vendors.
As with the other WEP-variants 24 bits of that is for IV, leaving 232 bits for actual protection.
These 232 bits are typically entered as 58 hexadecimal charcters ((58 x 4 bits) 232 bits) + 24 IV
bits =256-bit WEP key.
SO Answer is B (24)
question is WPA, not WEP, IV changed to 48 bits with WPA
Improved data encryption: this is done through the Temporal
Key Integrity Protocol (TKIP), which includes a hashing
algorithm that shuffles the keys. It also uses an integrity-checking
feature to ensure that the keys have not been altered.[4] Even
though “TKIP does use the RC4 stream cipher and all parties
must share the same secret key,”[4] this key, called the Temporal
Key (TK) must be 128 bits long, much longer than that used in
WEP, which is only 40 bits long. Just like WEP, it uses an IV,
but this is 48 bits long, double the size that is used in WEP.
“Even if the TK is shared, all involved parties generate a different
RC4 key stream.”[4] TKIP is also known as “per-packet keys,”
which means that it “dynamically generates a new key for each
packet created,” which prevents collisions.
d 48
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