Longest username and password accepted for SOCKS5 authentication?

Question

As seen here http://tools.ietf.org/html/rfc1929 , I would assume that it is either 255, or unlimited in length.

What is the longest possible username and/or password you can use for authenticating a SOCKS 5 proxy?

Answer 1

I read the same document, and read it as specifically stating that username and password are 1-255 octets long. Assuming single byte encoding this would be 255 chars max.