pcap-wepcrypt

pcap-wepcrypt is a simple utility to help work with encrypted pcap files. It will allow you to encrypt, decrypt, or weakly-encrypt a pcap file (good for testing out new techniques in jc-aircrack). Heres an example of how to weakly encrypt a pcap file.

the following command will weakly (-w) encrypt each data packet in base.pcap 100 times (-n) with a probability of 20% of using a weak IV. (-p). The key 00:11:00:11:00 will be used and the output will go to out.pcap

pcap-wepcrypt -w -n 100 -p 20 -k 00:11:00:11:00 ./base.pcap ./out.pcap

And this command will decrypt out.pcap into decrypted.pcap

pcap-wepcrypt -d -k 00:11:00:11:00 ./out.pcap ./decrypted.pcap