CFLib.org – Common Function Library Project

Description:
Creates a 40-bit or 128-bit WEP key. Use entirely at your own risk. No security is implied or provided by using this. This function simply creates a key for you.

Return Values:
Returns a string.

Example:

createWEPKey(40) returns: B053D17A22
createWEPKey(128) returns: DAB9CF62B96D59DC0883A3AEA8
createWEPKey() returns: A156F82F5374722B6E1ADEB32B

Parameters:

Full UDF Source:

/**
 * Creates a 40-bit or 128-bit WEP key.
 * 
 * @param length      Length of the WEP key. Either 40 or 128 (default). (Optional)
 * @return Returns a string. 
 * @author Alan McCollough (amccollough@anmc.org) 
 * @version 1, January 12, 2006 
 */
function createWEPKey() {
    var baseKey = "";
    var key = "";
    var defaultLength = 128;
    var length = defaultLength;
    
    /* If user has passed in a specfic key length, and they want a 40-bit key,
    change the value of length to 40 instead of 128.
    Of course, a 40-bit WEP key is trivial to crack, but that is not my problem. */
    if (arrayLen(arguments) eq 1) {
        if(val(arguments[1]) eq 40)
            length = 40;
    }
    
        
    /* 
        CF generated UUIDs look like this:
        73B96C47-F5F1-0F5C-488C7C5170101FA0
        8 chars - 4 chars - 4 chars - 16 chars
        
        First off, generate a base key
    */
    baseKey = mid(createUUID(),20,16) & mid(createUUID(),15,4) & mid(createUUID(),10,4) & mid(createUUID(),25,2);
    
    /* Create a 40-bit or 128-bit key, as the user requested */
    switch(length) {
        case "40": {
            key = mid(baseKey,10,10);
            break;
        }
        case "128": {
            key = baseKey;
            break;
        }
    } //end switch
    
    return key;
}