Crunch will allow us to configure the dictionary as we want, and it will export it to a text file for later use in programs such as Aircrack-ng among others. This way, we won’t have to use dictionaries that are outside of these parameters. If we know or intuit that the WPA password of a target has, for example, 10 characters and that it only uses uppercase and lowercase letters, we can create a dictionary that has all the combinations and permutations of uppercase and lowercase letters. We must remember that WiFi networks with WPA have between 8 and 63 characters, so “trying” these words does not make any sense, since we will not be able to “hit” with the WiFi password.Ĭurrently there are very powerful and configurable programs that allow us to create a dictionary on demand, such as Crunch. When we download a dictionary of keys, if we want to crack WiFi wireless networks, we must make sure that we do not have words or a combination of words and numbers below 8 characters or above 63 characters.
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