Most devices also allow the user to enter the key as 5 ASCII characters (0–9, a–z, A–Z), each of which is turned into 8 bits using the character's byte value in ASCII (8 bits × 5 + 24 bits IV = 64 bits of WEP key) however, this restricts each byte to be a printable ASCII character, which is only a small fraction of possible byte values, greatly reducing the space of possible keys.Ī 128-bit WEP key is usually entered as a string of 26 hexadecimal characters.
Each character represents 4 bits, 10 digits of 4 bits each gives 40 bits adding the 24-bit IV produces the complete 64-bit WEP key (4 bits × 10 + 24 bits IV = 64 bits of WEP key). Once the restrictions were lifted, manufacturers of access points implemented an extended 128-bit WEP protocol using a 104-bit key size (WEP-104).Ī 64-bit WEP key is usually entered as a string of 10 hexadecimal (base 16) characters (0–9 and A–F). Government's export restrictions on cryptographic technology limited the key size. At the time that the original WEP standard was drafted, the U.S. Standard 64-bit WEP uses a 40- bit key (also known as WEP-40), which is concatenated with a 24-bit initialization vector (IV) to form the RC4 key. īasic WEP encryption: RC4 keystream XORed with plaintext It was deprecated in 2004 and is documented in the current standard. WEP uses the stream cipher RC4 for confidentiality, and the CRC-32 checksum for integrity. WEP was included as the privacy component of the original IEEE 802.11 standard ratified in 1997. Despite the introduction of 256-bit WEP, 128-bit remains one of the most common implementations. When the restrictions were lifted, the encryption was increased to 128-bit. These restrictions led to manufacturers restricting their devices to only 64-bit encryption. restrictions on the export of various cryptographic technology. The first versions of WEP were not particularly strong, even for the time they were released, due to U.S.
WEP was ratified as a Wi-Fi security standard in 1999.
#Kutty wep 5.1 software
However, some 802.11b devices were later provided with firmware or software updates to enable WPA, and newer devices had it built in. WEP was the only encryption protocol available to 802.11a and 802.11b devices built before the WPA standard, which was available for 802.11g devices. WPA2), the IEEE declared that both WEP-40 and WEP-104 have been deprecated.
#Kutty wep 5.1 full
In 2004, with the ratification of the full 802.11i standard (i.e. In 2003, the Wi-Fi Alliance announced that WEP had been superseded by Wi-Fi Protected Access (WPA). WEP, recognizable by its key of 10 or 26 hexadecimal digits (40 or 104 bits), was at one time widely used, and was often the first security choice presented to users by router configuration tools. Introduced as part of the original IEEE 802.11 standard ratified in 1997, its intention was to provide data confidentiality comparable to that of a traditional wired network. Wired Equivalent Privacy ( WEP) was a security algorithm for 802.11 wireless networks. Deprecated security algorithm for wireless networks
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