Tag
3 articles with this tag.
WEP bolted RC4 onto a 3-byte IV sent in the clear, and that choice was fatal. The Fluhrer-Mantin-Shamir attack recovers the shared key from the first byte of thousands of weak-IV packets. This guide runs the real attack against real RC4 and recovers the key byte by byte.
14 min read
RC4's second keystream byte is zero twice as often as it should be. Encrypt the same secret enough times, under any keys at all, and that one flaw hands the secret's second byte straight to anyone watching the ciphertexts.
12 min read
RC4 was the simplest, fastest cipher of its era. It powered SSL, WEP, and WPA for over a decade before a decade of accumulating bias attacks quietly killed it. Learn how it works and exactly why it's insecure today.
8 min read
