Scott R. Fluhrer Itsik Mantin Adi Shamir Weaknesses in the Key Scheduling Algorithm of RC4. 1-24 2001 conf/sacrypt/2001 Selected Areas in Cryptography http://link.springer.de/link/service/series/0558/bibs/2259/22590001.htm db/conf/sacrypt/sacrypt2001.html#FluhrerMS01