WEP Key Maker generates a hexadecimal WEP key from a pass phrase. IEEE 802.11b uses a 104 or 40-bit key to encode packets with WEP encryption. Third-party devices typically use a hexadecimal key, which WEP Key Maker creates. The key can be copied from WEP Key Maker s dialog and pasted directly into Airport dialogs and third-party software. WEP Key Maker also creates keys of other lengths.