A very simple implementation of Base64 encoding and decoding for Common Lisp.

Just use the base64-encode and base64-decode functions to encode and decode from and to strings.

CL-USER > (base64-encode "Man is distinguished")
"TWFuIGlzIGRpc3Rpbmd1aXNoZWQ="

CL-USER > (base64-decode *)
"Man is distinguished"

That's pretty much it. ;-)

In the future, I'll add base64-encode-binary and base64-decode-binary. But right now I have no need for them. If you create these, please send me a pull request!