Surely some of the folks here also wore the Perl RSA implementation on a t-shirt back in the mid 90s:<p><a href="http:&#x2F;&#x2F;www.cypherspace.org&#x2F;rsa&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.cypherspace.org&#x2F;rsa&#x2F;</a><p>A lot of comments here are talking about how the author is mistaken about the security of RC4.<p>The point of this post, and the t-shirt, is that it&#x27;s dumb on many, many levels to ban cryptography.