| I believe the code for RC4 and RC2 is accessible and has been subjected to | review by many in the crypto field - you just can't use it legally without | a license. This is not correct. RC2 is not public; something that interoperates with RC4 was posted to cypherpunks & sci.crypt last year. Neither have undergone any peer review that has been published (AFAIK). A paper on RC5 is listed in the Crypto 95 schedule, but nothing on RC4. Also, the usability of RC4 is very open to question. Since it was a trade secret, it was not patented. Several smart people have said that once a trade secret becomes well known, its out protections. But few people want to get a nasty letter ffrom RSA's lawyers, so no one in the US has released anything with RC4 in it without the RSA licenses. Adam -- "It is seldom that liberty of any kind is lost all at once." -Hume