Do Export Restrictions Still Apply To The Key Length of RC4? I've just read a paper from 2004 which stated that the RC4 encryption algorithm was restricted to a 40 bit key size when exported from the USA; however the reference for this information (Applied Cryptography - Schneieir) was published in 1996.

Here's the link to the paper "The effectiveness of brute force attacks on RC4".

I'm relatively new to cryptography but as far as I'm aware, a lot of the old export laws have been relaxed. Was the key length of RC4 still restricted in 2004? If so, is that still the case?

Thanks for any help.
Afaik, the general export restrictions on keylengths of common ciphers were lifted during the Clinton administration. Here's the relevant wiki article.