NSData Base64 extension - revisited

Reading the cocoa-dev mailing list I saw some mention of a SSCrypto framework which provides a wrapper around OpenSSL. I just checked it out and compiled it but haven't put it to use yet. Licensed under a BSD-style license... If only I had seen this sooner. This wheel has been reinvented at least three times publicly, perhaps Apple should add something like this to NSData? :)